Zhang, Mao-Hua ; Ding, Hui ; Egert, Sonja ; Zhao, Changhao ; Villa, Lorenzo ; Fulanovic, Lovro ; Groszewicz, Pedro B. ; Buntkowsky, Gerd ; Kleebe, Hans-Joachim ; Albe, Karsten ; Klein, Andreas ; Koruza, Jurij (2023)
Tailoring high-energy storage NaNbO3-based materials from antiferroelectric to relaxor states.
In: Nature Communications, 14
doi: 10.1038/s41467-023-37060-4
Article

Bein, Nicole S. ; Kmet, Brigita ; Rojac, Tadej ; Golob, Andreja Benčan ; Malič, Barbara ; Moxter, Julian ; Schneider, Thorsten ; Fulanovic, Lovro ; Azadeh, Maryam ; Frömling, Till ; Egert, Sonja ; Wang, Hongguang ; Aken, Peter van ; Schwarzkopf, Jutta ; Klein, Andreas (2022)
Fermi energy, electrical conductivity, and the energy gap of NaNbO3.
In: Physical Review Materials, 6 (8)
doi: 10.1103/PhysRevMaterials.6.084404
Article

Ghorbani, Elaheh ; Villa, Lorenzo ; Erhart, Paul ; Klein, Andreas ; Albe, Karsten (2022)
Self-consistent calculations of charge self-trapping energies: A comparative study of polaron formation and migration in PbTiO3.
In: Physical Review Materials, 6 (7)
doi: 10.1103/PhysRevMaterials.6.074410
Article

Poulain, Raphaël ; Rohrer, Jochen ; Hermans, Yannick ; Dietz, Christian ; Brötz, Joachim ; Proost, Joris ; Chatenet, Marian ; Klein, Andreas (2022)
Origin of Surface Reduction upon Water Adsorption on Oriented NiO Thin Films and Its Relation to Electrochemical Activity.
In: Journal of Physical Chemistry C, 126 (3)
doi: 10.1021/acs.jpcc.1c07934
Article

Erhart, Paul ; Klein, Andreas ; Egdell, Russell G. ; Albe, Karsten (2022)
Band structure of indium oxide: Indirect versus direct band gap.
In: Physical Review B, 75 (15)
doi: 10.26083/tuprints-00021099
Article, Secondary publication, Publisher's Version

Yu, S. -W. ; Müller, N. ; Heinzmann, U. ; Pettenkofer, C. ; Klein, Andreas ; Blaha, P. (2022)
Band symmetries of GaSe(0001) studied by spin-resolved electron spectroscopy using circularly polarized radiation.
In: Physical Review B, 69 (4)
doi: 10.26083/tuprints-00021100
Article, Secondary publication, Publisher's Version

Schafranek, R. ; Payan, S. ; Maglione, M. ; Klein, Andreas (2022)
Barrier height at (Ba,Sr)TiO₃/Pt interfaces studied by photoemission.
In: Physical Review B, 77 (19)
doi: 10.26083/tuprints-00021101
Article, Secondary publication, Publisher's Version

Klein, Andreas ; Dieker, H. ; Späth, B. ; Fons, P. ; Kolobov, A. ; Steimer, C. ; Wuttig, M. (2022)
Changes in Electronic Structure and Chemical Bonding upon Crystallization of the Phase Change Material GeSb₂Te₄.
In: Physical Review Letters, 100 (1)
doi: 10.26083/tuprints-00021181
Article, Secondary publication, Publisher's Version

Albe, Karsten ; Klein, Andreas (2022)
Density-functional-theory calculations of electronic band structure of single-crystal and single-layer WS₂.
In: Physical Review B, 66 (7)
doi: 10.26083/tuprints-00021098
Article, Secondary publication, Publisher's Version

Erhart, Paul ; Klein, Andreas ; Åberg, Daniel ; Sadigh, Babak (2022)
Efficacy of the DFT + U formalism for modeling hole polarons in perovskite oxides.
In: Physical Review B, 90 (3)
doi: 10.26083/tuprints-00021157
Article, Secondary publication, Publisher's Version

Stohr, Tobias ; Fischer, Angelina ; Muench, Falk ; Antoni, Markus ; Wollstadt, Stephan ; Lohaus, Christian ; Kunz, Ulrike ; Clemens, Oliver ; Klein, Andreas ; Ensinger, Wolfgang (2022)
Electroless Nanoplating of Pd−Pt Alloy Nanotube Networks: Catalysts with Full Compositional Control for the Methanol Oxidation Reaction.
In: ChemElectroChem, 7 (3)
doi: 10.26083/tuprints-00015641
Article, Secondary publication, Publisher's Version

Klein, Andreas ; Tiefenbacher, S. ; Eyert, V. ; Pettenkofer, C. ; Jaegermann, Wolfram (2022)
Electronic band structure of single-crystal and single-layer WS₂: Influence of interlayer van der Waals interactions.
In: Physical Review B, 64 (20)
doi: 10.26083/tuprints-00021167
Article, Secondary publication, Publisher's Version

Körber, C. ; Krishnakumar, V. ; Klein, Andreas ; Panaccione, G. ; Torelli, P. ; Walsh, A. ; Silva, J. L. F. Da ; Wei, S.-H. ; Egdell, R. G. ; Payne, D. J. (2022)
Electronic structure of In₂O₃ and Sn-doped In₂O₃ by hard x-ray photoemission spectroscopy.
In: Physical Review B, 81 (16)
doi: 10.26083/tuprints-00021168
Article, Secondary publication, Publisher's Version

Klein, Andreas ; Lang, O. ; Schlaf, R. ; Pettenkofer, C. ; Jaegermann, Wolfram (2022)
Electronically Decoupled Films of InSe Prepared by van der Waals Epitaxy: Localized and Delocalized Valence States.
In: Physical Review Letters, 80 (2)
doi: 10.26083/tuprints-00021182
Article, Secondary publication, Publisher's Version

Erhart, Paul ; Albe, Karsten ; Klein, Andreas (2022)
First-principles study of intrinsic point defects in ZnO: Role of band structure, volume relaxation, and finite-size effects.
In: Physical Review B, 73 (20)
doi: 10.26083/tuprints-00021169
Article, Secondary publication, Publisher's Version

Erhart, Paul ; Klein, Andreas ; Albe, Karsten (2022)
First-principles study of the structure and stability of oxygen defects in zinc oxide.
In: Physical Review B, 72 (8)
doi: 10.26083/tuprints-00021170
Article, Secondary publication, Publisher's Version

Schuldt, Katharina N. S. ; Ding, Hui ; Jaud, Jean-Christophe ; Koruza, Jurij ; Klein, Andreas (2022)
Influence of Defects on the Schottky Barrier Height at BaTiO₃/RuO₂ Interfaces.
In: Physica status solidi (a), 218 (14)
doi: 10.26083/tuprints-00020139
Article, Secondary publication, Publisher's Version

Li, Shunyi ; Morasch, Jan ; Klein, Andreas ; Chirila, Christina ; Pintilie, Lucian ; Jia, Lichao ; Ellmer, Klaus ; Naderer, Michael ; Reichmann, Klaus ; Gröting, Melanie ; Albe, Karsten (2022)
Influence of orbital contributions to the valence band alignment of Bi2O3, Fe2O3, BiFeO3, and Bi0.5Na0.5TiO3.
In: Physical Review B, 88 (4)
doi: 10.26083/tuprints-00021171
Article, Secondary publication, Publisher's Version

Schlaf, R. ; Klein, Andreas ; Pettenkofer, C. ; Jaegermann, Wolfram (2022)
Laterally inhomogeneous surface-potential distribution and photovoltage at clustered In/WSe₂(0001) interfaces.
In: Physical Review B, 48 (19)
doi: 10.26083/tuprints-00021172
Article, Secondary publication, Publisher's Version

Walsh, Aron ; Silva, Juarez L. F. Da ; Wei, Su-Huai ; Körber, C. ; Klein, Andreas ; Piper, L. F. J. ; DeMasi, Alex ; Smith, Kevin E. ; Panaccione, G. ; Torelli, P. ; Payne, D. J. ; Bourlange, A. ; Egdell, R. G. (2022)
Nature of the Band Gap of In₂O₃ Revealed by First-Principles Calculations and X-Ray Spectroscopy.
In: Physical Review Letters, 100 (16)
doi: 10.26083/tuprints-00021183
Article, Secondary publication, Publisher's Version

Schafranek, Robert ; Li, Shunyi ; Chen, Feng ; Wu, Wenbin ; Klein, Andreas (2022)
PbTiO₃/SrTiO₃ interface: Energy band alignment and its relation to the limits of Fermi level variation.
In: Physical Review B, 84 (4)
doi: 10.26083/tuprints-00021173
Article, Secondary publication, Publisher's Version

Chen, Feng ; Klein, Andreas (2022)
Polarization dependence of Schottky barrier heights at interfaces of ferroelectrics determined by photoelectron spectroscopy.
In: Physical Review B, 86 (9)
doi: 10.26083/tuprints-00021177
Article, Secondary publication, Publisher's Version

Wendel, Philipp ; Periyannan, Shanmugapriya ; Jaegermann, Wolfram ; Klein, Andreas (2022)
Polarization dependence of ZnO Schottky barriers revealed by photoelectron spectroscopy.
In: Physical Review Materials, 4 (8)
doi: 10.26083/tuprints-00021184
Article, Secondary publication, Publisher's Version

Aurino, P. P. ; Kalabukhov, A. ; Tuzla, N. ; Olsson, E. ; Klein, Andreas ; Erhart, P. ; Boikov, Y. A. ; Serenkov, I. T. ; Sakharov, V. I. ; Claeson, T. ; Winkler, D. (2022)
Reversible metal-insulator transition of Ar-irradiated LaAlO₃/SrTiO₃ interfaces.
In: Physical Review B, 92 (15)
doi: 10.26083/tuprints-00021178
Article, Secondary publication, Publisher's Version

Pohl, Johan ; Klein, Andreas ; Albe, Karsten (2022)
Role of copper interstitials in CuInSe₂: First-principles calculations.
In: Physical Review B, 84 (12)
doi: 10.26083/tuprints-00021179
Article, Secondary publication, Publisher's Version

Borchert, Holger ; Scheunemann, Dorothea ; Frevert, Katja ; Witt, Florian ; Klein, Andreas ; Parisi, Jürgen (2022)
Schottky Solar Cells with CuInS₂ Nanocrystals as Absorber Material.
In: Zeitschrift für Physikalische Chemie, 229 (1-2)
doi: 10.26083/tuprints-00021205
Article, Secondary publication, Publisher's Version

Poulain, Raphaël ; Proost, Joris ; Klein, Andreas (2022)
Sputter Deposition of Transition Metal Oxides on Silicon: Evidencing the Role of Oxygen Bombardment for Fermi‐Level Pinning.
In: Physica status solidi (a), 216 (23)
doi: 10.26083/tuprints-00016726
Article, Secondary publication, Publisher's Version

Medvedeva, Julia E. ; Bhattarai, Bishal ; Zhuravlev, Ivan A. ; Motti, Federico ; Torelli, Piero ; Guarino, Anita ; Klein, Andreas ; Gennaro, Emiliano Di ; Granozio, Fabio Miletto (2022)
Structure and electronic properties of amorphous strontium titanate.
In: Physical Review Materials, 6 (7)
doi: 10.1103/PhysRevMaterials.6.075605
Article

Gassenbauer, Y. ; Schafranek, R. ; Klein, Andreas ; Zafeiratos, S. ; Hävecker, M. ; Knop-Gericke, A. ; Schlögl, R. (2022)
Surface states, surface potentials, and segregation at surfaces of tin-doped In₂O₃.
In: Physical Review B, 73 (24)
doi: 10.26083/tuprints-00021180
Article, Secondary publication, Publisher's Version

Schuldt, Katharina N. S. ; Ding, Hui ; Jaud, Jean-Christophe ; Koruza, Jurij ; Klein, Andreas (2021)
Influence of Defects on the Schottky Barrier Height at BaTiO3/RuO2 Interfaces.
In: physica status solidi (a), 2021
doi: 10.1002/pssa.202100143
Article

Koruza, Jurij ; Klein, Andreas ; Huart, Véronique ; Bagnoli, Jessica (2021)
Electroceramics XVII - the 2020 virtual conference experience at TU Darmstadt.
In: Open Ceramics, 2021 (6)
doi: 10.1016/j.oceram.2021.100114
Article

Ren, Peng ; Gehringer, Maximilian ; Huang, Binxiang ; Hoang, An-Phuc ; Steiner, Sebastian ; Klein, Andreas ; Frömling, Till (2021)
High field electroformation of sodium bismuthtitanate and its solid solutions with bariumtitanate.
In: Journal of Materials Chemistry C, 9 (9)
doi: 10.1039/d0tc05728b
Article

Zhang, Mao-Hua ; Hadaeghi, Niloofar ; Egert, Sonja ; Ding, Hui ; Zhang, Hongbin ; Groszewicz, Pedro B. ; Buntkowsky, Gerd ; Klein, Andreas ; Koruza, Jurij (2021)
Design of Lead-Free Antiferroelectric (1 − x)NaNbO3−xSrSnO3 Compositions Guided by First-Principles Calculations.
In: Chemistry of Materials, 33 (1)
doi: 10.1021/acs.chemmater.0c03685
Article

Schaffner, Judith ; Motzko, Markus ; Tueschen, Alexander ; Swirschuk, Andreas ; Schimper, Hermann-Josef ; Klein, Andreas ; Modes, Thomas ; Zywitzki, Olaf ; Jaegermann, Wolfram (2021)
12% efficient CdTe/CdS thin film solar cells deposited by low-temperature close space sublimation.
In: Journal of Applied Physics, 110 (6)
doi: 10.26083/tuprints-00019888
Article, Secondary publication, Publisher's Version

Lohaus, Christian ; Klein, Andreas ; Jaegermann, Wolfram (2021)
Author Correction: Limitation of Fermi level shifts by polaron defect states in hematite photoelectrodes.
In: Nature Communications, 9 (1)
doi: 10.26083/tuprints-00019798
Article, Primary publication, Publisher's Version

Zakutayev, Andriy ; Tate, Janet ; Platt, Heather A. S. ; Keszler, Douglas A. ; Barati, Alireza ; Klein, Andreas ; Jaegermann, Wolfram (2021)
Band alignment at the BaCuSeF/ZnTe interface.
In: Applied Physics Letters, 96 (16)
doi: 10.26083/tuprints-00019831
Article, Secondary publication, Publisher's Version

Klein, Andreas ; Löher, T. ; Tomm, Y. ; Pettenkofer, C. ; Jaegermann, Wolfram (2021)
Band lineup between CdS and ultra high vacuum-cleaved CuInS₂ single crystals.
In: Applied Physics Letters, 70 (10)
doi: 10.26083/tuprints-00019832
Article, Secondary publication, Publisher's Version

Lang, O. ; Klein, Andreas ; Pettenkofer, Christian ; Jaegermann, Wolfram ; Chevy, Alain (2021)
Band lineup of lattice mismatched InSe/GaSe quantum well structures prepared by van der Waals epitaxy: Absence of interfacial dipoles.
In: Journal of Applied Physics, 80 (7)
doi: 10.26083/tuprints-00019891
Article, Secondary publication, Publisher's Version

Schulmeyer, T. ; Klein, Andreas ; Kniese, R. ; Powalla, Michael (2021)
Band offset at the CuGaSe₂∕In₂S₃ heterointerface.
In: Applied Physics Letters, 85 (6)
doi: 10.26083/tuprints-00019833
Article, Secondary publication, Publisher's Version

Bauknecht, Andreas ; Blieske, U. ; Kampschulte, T. ; Albert, J. ; Sehnert, H. ; Lux-Steiner, Martha Ch. ; Klein, Andreas ; Jaegermann, Wolfram (2021)
Band offsets at the ZnSe/CuGaSe₂(001) heterointerface.
In: Applied Physics Letters, 74 (8)
doi: 10.26083/tuprints-00019834
Article, Secondary publication, Publisher's Version

Chen, Feng ; Schafranek, Robert ; Wachau, André ; Zhukov, Sergey ; Glaum, Julia ; Granzow, Torsten ; Seggern, Heinz von ; Klein, Andreas (2021)
Barrier heights, polarization switching, and electrical fatigue in Pb(Zr,Ti)O₃ ceramics with different electrodes.
In: Journal of Applied Physics, 108 (10)
doi: 10.26083/tuprints-00019892
Article, Secondary publication, Publisher's Version

Kraft, D. ; Thissen, A. ; Broetz, Joachim ; Flege, S. ; Campo, M. ; Klein, Andreas ; Jaegermann, Wolfram (2021)
Characterization of tellurium layers for back contact formation on close to technology treated CdTe surfaces.
In: Journal of Applied Physics, 94 (5)
doi: 10.26083/tuprints-00019908
Article, Secondary publication, Publisher's Version

Klein, Andreas ; Löher, Thomas ; Pettenkofer, C. ; Jaegermann, Wolfram (2021)
Chemical interaction of Na with cleaved (011) surfaces of CuInSe₂.
In: Journal of Applied Physics, 80 (9)
doi: 10.26083/tuprints-00019909
Article, Secondary publication, Publisher's Version

Sträter, Hendrik ; Brüggemann, R. ; Siol, S. ; Klein, Andreas ; Jaegermann, Wolfram ; Bauer, G. H. (2021)
Detailed photoluminescence studies of thin film Cu₂S for determination of quasi-Fermi level splitting and defect levels.
In: Journal of Applied Physics, 114 (23)
doi: 10.26083/tuprints-00019912
Article, Secondary publication, Publisher's Version

Bayer, Thorsten J. M. ; Carter, J. J. ; Wang, Jian-Jun ; Klein, Andreas ; Chen, Long-Qing ; Randall, Clive A. (2021)
Determination of electrical properties of degraded mixed ionic conductors: Impedance studies with applied dc voltage.
In: Journal of Applied Physics, 122 (24)
doi: 10.26083/tuprints-00019913
Article, Secondary publication, Publisher's Version

Zuo, Yinan ; Genenko, Yuri A. ; Klein, Andreas ; Stein, Peter ; Xu, Baixiang (2021)
Domain wall stability in ferroelectrics with space charges.
In: Journal of Applied Physics, 115 (8)
doi: 10.26083/tuprints-00019917
Article, Secondary publication, Publisher's Version

Koruza, Jurij ; Klein, Andreas ; Huart, Véronique ; Bagnoli, Jessica (2021)
Electroceramics XVII - The 2020 virtual conference experience at TU Darmstadt.
In: Open Ceramics, 6
doi: 10.26083/tuprints-00019786
Article, Secondary publication, Publisher's Version

Fritsche, R. ; Wisotzki, E. ; Islam, A. B. M. O. ; Thissen, A. ; Klein, Andreas ; Jaegermann, Wolfram ; Rudolph, R. ; Tonti, D. ; Pettenkofer, C. (2021)
Electronic passivation of Si(111) by Ga–Se half-sheet termination.
In: Applied Physics Letters, 80 (8)
doi: 10.26083/tuprints-00019835
Article, Secondary publication, Publisher's Version

Zakutayev, Andriy ; Tate, Janet ; Platt, Heather A. S. ; Keszler, Douglas A. ; Hein, Corinna ; Mayer, Thomas ; Klein, Andreas ; Jaegermann, Wolfram (2021)
Electronic properties of BaCuChF (Ch=S,Se,Te) surfaces and BaCuSeF/ZnPc interfaces.
In: Journal of Applied Physics, 107 (10)
doi: 10.26083/tuprints-00019918
Article, Secondary publication, Publisher's Version

Klein, Andreas (2021)
Electronic properties of In₂O₃ surfaces.
In: Applied Physics Letters, 77 (13)
doi: 10.26083/tuprints-00019846
Article, Secondary publication, Publisher's Version

Piper, L. F. J. ; DeMasi, Alexander ; Cho, S. W. ; Smith, Kevin E. ; Fuchs, F. ; Bechstedt, Friedhelm ; Körber, C. ; Klein, Andreas ; Payne, D. J. ; Egdell, Russell G. (2021)
Electronic structure of In₂O₃ from resonant x-ray emission spectroscopy.
In: Applied Physics Letters, 94 (2)
doi: 10.26083/tuprints-00019848
Article, Secondary publication, Publisher's Version

Rudolph, Reiner ; Pettenkofer, Christian ; Bostwick, Aaron A. ; Adams, Jonathan A. ; Ohuchi, Fumio ; Olmstead, Marjorie A. ; Jaeckel, Bengt ; Klein, Andreas ; Jaegermann, Wolfram (2021)
Electronic structure of the Si(1 1 1):GaSe van der Waals-like surface termination.
In: New Journal of Physics, 7
doi: 10.26083/tuprints-00019805
Article, Primary publication, Publisher's Version

Deuermeier, Jonas ; Fortunato, Elvira ; Martins, Rodrigo ; Klein, Andreas (2021)
Energy band alignment at the nanoscale.
In: Applied Physics Letters, 110 (5)
doi: 10.26083/tuprints-00019852
Article, Secondary publication, Publisher's Version

Li, Shunyi ; Wachau, André ; Schafranek, Robert ; Klein, Andreas ; Zheng, Yuliang ; Jakoby, Rolf (2021)
Energy level alignment and electrical properties of (Ba,Sr)TiO₃/Al₂O₃ interfaces for tunable capacitors.
In: Journal of Applied Physics, 108 (1)
doi: 10.26083/tuprints-00019919
Article, Secondary publication, Publisher's Version

Lohaus, Christian ; Steinert, Céline ; Deyu, Getnet ; Brötz, Joachim ; Jaegermann, Wolfram ; Klein, Andreas (2021)
Enhancing electrical conductivity of room temperature deposited Sn-doped In₂O₃ thin films by hematite seed layers.
In: Applied Physics Letters, 112 (15)
doi: 10.26083/tuprints-00019853
Article, Secondary publication, Publisher's Version

Harvey, S. P. ; Mason, T. O. ; Körber, C. ; Gassenbauer, Y. ; Klein, Andreas (2021)
Evidence for surface dipole modifications in In₂O₃-based transparent conductors.
In: Applied Physics Letters, 92 (25)
doi: 10.26083/tuprints-00019854
Article, Secondary publication, Publisher's Version

Chavarría, Christopher Castro ; Payan, Sandrine ; Salvetat, Jean-Paul ; Maglione, Mario ; Klein, Andreas (2021)
Fermi Level Engineering for Large Permittivity in BaTiO3-Based Multilayers.
In: Surfaces, 2020, 3 (4)
doi: 10.26083/tuprints-00019261
Article, Secondary publication, Publisher's Version

Klein, Andreas ; Jaegermann, Wolfram (2021)
Fermi-level-dependent defect formation in Cu-chalcopyrite semiconductors.
In: Applied Physics Letters, 74 (16)
doi: 10.26083/tuprints-00019855
Article, Secondary publication, Publisher's Version

Deuermeier, Jonas ; Wardenga, Hans F. ; Morasch, Jan ; Siol, Sebastian ; Nandy, Suman ; Calmeiro, Tomás ; Martins, Rodrigo ; Klein, Andreas ; Fortunato, Elvira (2021)
Highly conductive grain boundaries in copper oxide thin films.
In: Journal of Applied Physics, 119 (23)
doi: 10.26083/tuprints-00019920
Article, Secondary publication, Publisher's Version

Löher, T. ; Tomm, Y. ; Klein, Andreas ; Su, D. ; Pettenkofer, C. ; Jaegermann, Wolfram (2021)
Highly oriented layers of the three‐dimensional semiconductor CdTe on the two‐dimensional layered semiconductors MoTe₂and WSe₂.
In: Journal of Applied Physics, 80 (10)
doi: 10.26083/tuprints-00019923
Article, Secondary publication, Publisher's Version

Wardenga, Hans ; Frischbier, Mareike ; Morales-Masis, Monica ; Klein, Andreas (2021)
In Situ Hall Effect Monitoring of Vacuum Annealing of In₂O₃:H Thin Films.
In: Materials, 8 (2)
doi: 10.26083/tuprints-00019791
Article, Secondary publication, Publisher's Version

Liu, Guangming ; Schulmeyer, T. ; Thissen, A. ; Klein, Andreas ; Jaegermann, Wolfram (2021)
In situ preparation and interface characterization of TiO₂/Cu₂S heterointerface.
In: Applied Physics Letters, 82 (14)
doi: 10.26083/tuprints-00019856
Article, Secondary publication, Publisher's Version

Rao, G. Venkata ; Säuberlich, F. ; Klein, Andreas (2021)
Influence of Mg content on the band alignment at CdS∕(Zn,Mg)O interfaces.
In: Applied Physics Letters, 87 (3)
doi: 10.26083/tuprints-00019857
Article, Secondary publication, Publisher's Version

Hubmann, Andreas ; Dietz, Dominik ; Brötz, Joachim ; Klein, Andreas (2021)
Interface Behaviour and Work Function Modification of Self-Assembled Monolayers on Sn-Doped In₂O₃.
In: Surfaces, 2 (2)
doi: 10.26083/tuprints-00019795
Article, Secondary publication, Publisher's Version

Lohaus, Christian ; Klein, Andreas ; Jaegermann, Wolfram (2021)
Limitation of Fermi level shifts by polaron defect states in hematite photoelectrodes.
In: Nature Communications, 9 (1)
doi: 10.26083/tuprints-00019797
Article, Secondary publication, Publisher's Version

Ágoston, Péter ; Körber, Christoph ; Klein, Andreas ; Puska, Martti J. ; Nieminen, Risto M. ; Albe, Karsten (2021)
Limits for n-type doping in In₂O₃ and SnO₂: A theoretical approach by first-principles calculations using hybrid-functional methodology.
In: Journal of Applied Physics, 108 (5)
doi: 10.26083/tuprints-00019925
Article, Secondary publication, Publisher's Version

Hirsch, S. ; Komissinskiy, Philipp ; Flege, Stefan ; Li, S. ; Rachut, Karsten ; Klein, Andreas ; Alff, Lambert (2021)
Modification of energy band alignment and electric properties of Pt/Ba₀.₆Sr₀.₄TiO₃/Pt thin-film ferroelectric varactors by Ag impurities at interfaces.
In: Journal of Applied Physics, 115 (24)
doi: 10.26083/tuprints-00019928
Article, Secondary publication, Publisher's Version

Deuermeier, Jonas ; Kiazadeh, Asal ; Klein, Andreas ; Martins, Rodrigo ; Fortunato, Elvira (2021)
Multi-Level Cell Properties of a Bilayer Cu₂O/Al₂O₃ Resistive Switching Device.
In: Nanomaterials, 9 (2)
doi: 10.26083/tuprints-00019794
Article, Secondary publication, Publisher's Version

Späth, B. ; Fritsche, J. ; Klein, Andreas ; Jaegermann, Wolfram (2021)
Nitrogen doping of ZnTe and its influence on CdTe∕ZnTe interfaces.
In: Applied Physics Letters, 90 (6)
doi: 10.26083/tuprints-00019883
Article, Primary publication, Publisher's Version

Löher, T. ; Klein, Andreas ; Pettenkofer, C. ; Jaegermann, Wolfram (2021)
Partial density of states in the CuInSe₂ valence bands.
In: Journal of Applied Physics, 81 (12)
doi: 10.26083/tuprints-00019929
Article, Secondary publication, Publisher's Version

Fuchs, Anne ; Schimper, Hermann Josef ; Klein, Andreas ; Jaegermann, Wolfram (2021)
Photoemission studies on undoped SnO₂ buffer layers for CdTe thin film solar cells.
In: Energy Procedia, 10
doi: 10.26083/tuprints-00019779
Article, Secondary publication, Publisher's Version

Schulmeyer, T. ; Hunger, R. ; Klein, Andreas ; Jaegermann, Wolfram ; Niki, S. (2021)
Photoemission study and band alignment of the CuInSe₂(001)/CdS heterojunction.
In: Applied Physics Letters, 84 (16)
doi: 10.26083/tuprints-00019885
Article, Secondary publication, Publisher's Version

Keil, Peter ; Frömling, Till ; Klein, Andreas ; Rödel, Jürgen ; Novak, Nikola (2021)
Piezotronic effect at Schottky barrier of a metal-ZnO single crystal interface.
In: Journal of Applied Physics, 121 (15)
doi: 10.26083/tuprints-00019952
Article, Secondary publication, Publisher's Version

Hermans, Yannick ; Klein, Andreas ; Sarker, Hori Pada ; Huda, Mohammad N. ; Junge, Henrik ; Toupance, Thierry ; Jaegermann, Wolfram (2021)
Pinning of the Fermi Level in CuFeO₂ by Polaron Formation Limiting the Photovoltage for Photochemical Water Splitting.
In: Advanced Functional Materials, 2020, 30 (10)
doi: 10.26083/tuprints-00019358
Article, Secondary publication, Publisher's Version

Deuermeier, Jonas ; Gassmann, Jürgen ; Brötz, Joachim ; Klein, Andreas (2021)
Reactive magnetron sputtering of Cu₂O: Dependence on oxygen pressure and interface formation with indium tin oxide.
In: Journal of Applied Physics, 109 (11)
doi: 10.26083/tuprints-00019938
Article, Secondary publication, Publisher's Version

Wendel, Philipp ; Dietz, Dominik ; Deuermeier, Jonas ; Klein, Andreas (2021)
Reversible Barrier Switching of ZnO/RuO2 Schottky Diodes.
In: Materials, 14 (10)
doi: 10.3390/ma14102678
Article

Wendel, Philipp ; Dietz, Dominik ; Deuermeier, Jonas ; Klein, Andreas (2021)
Reversible Barrier Switching of ZnO/RuO₂ Schottky Diodes.
In: Materials, 2021, 14 (10)
doi: 10.26083/tuprints-00019377
Article, Secondary publication, Publisher's Version

Klein, Andreas ; Jaegermann, Wolfram (2021)
Review - Electronic Properties of 2D Layered Chalcogenide Surfaces and Interfaces grown by (quasi) van der Waals Epitaxy.
In: ECS Journal of Solid State Science and Technology, 9
doi: 10.26083/tuprints-00019787
Article, Secondary publication, Publisher's Version

Gassmann, Andrea ; Yampolskii, Sergey V. ; Klein, Andreas ; Albe, Karsten ; Vilbrandt, Nicole ; Pekkola, Oili ; Genenko, Yuri A. ; Rehahn, Matthias ; Seggern, Heinz von (2021)
Study of electrical fatigue by defect engineering in organic light-emitting diodes.
In: Materials Science and Engineering: B, 192
doi: 10.26083/tuprints-00019785
Article, Secondary publication, Publisher's Version

Lang, O. ; Pettenkofer, C. ; Sánchez-Royo, Juan Francisco ; Segura, Alfredo ; Klein, Andreas ; Jaegermann, Wolfram (2021)
Thin film growth and band lineup of In₂O₃ on the layered semiconductor InSe.
In: Journal of Applied Physics, 86 (10)
doi: 10.26083/tuprints-00019939
Article, Secondary publication, Publisher's Version

Klein, Andreas ; Körber, Christoph ; Wachau, André ; Säuberlich, Frank ; Gassenbauer, Yvonne ; Harvey, Steven P. ; Proffit, Diana E. ; Mason, Thomas O. (2021)
Transparent Conducting Oxides for Photovoltaics: Manipulation of Fermi Level, Work Function and Energy Band Alignment.
In: Materials, 3 (11)
doi: 10.26083/tuprints-00019793
Article, Secondary publication, Publisher's Version

Fritsche, J. ; Schulmeyer, T. ; Kraft, D. ; Thißen, A. ; Klein, Andreas ; Jaegermann, Wolfram (2021)
Utilization of sputter depth profiling for the determination of band alignment at polycrystalline CdTe/CdS heterointerfaces.
In: Applied Physics Letters, 81 (12)
doi: 10.26083/tuprints-00019886
Article, Secondary publication, Publisher's Version

Rudolph, R. ; Tomm, Y. ; Pettenkofer, C. ; Klein, Andreas ; Jaegermann, Wolfram (2021)
Van der Waals xenotaxy: Oriented growth of hexagonal GaSe(001) on rectangular GaAs(110).
In: Applied Physics Letters, 76 (9)
doi: 10.26083/tuprints-00019887
Article, Secondary publication, Publisher's Version

Kashiwaya, Shun ; Morasch, Jan ; Streibel, Verena ; Toupance, Thierry ; Jaegermann, Wolfram ; Klein, Andreas (2021)
The Work Function of TiO₂.
In: Surfaces, 1 (1)
doi: 10.26083/tuprints-00019796
Article, Secondary publication, Publisher's Version

Jäckel, Bengt ; Fritsche, Rainer ; Klein, Andreas ; Jaegermann, Wolfram (2021)
ZnS deposition onto bare and GaSe terminated Silicon-(111)-surfaces.
In: AIP Conference Proceedings, 772 (1)
doi: 10.26083/tuprints-00019829
Article, Secondary publication, Publisher's Version

Rein, M. H. ; Hohmann, M. V. ; Thøgersen, Annett ; Mayandi, Jeyanthinath ; Holt, Arve O. ; Klein, Andreas ; Monakhov, Eduard V. (2021)
An in situ x-ray photoelectron spectroscopy study of the initial stages of rf magnetron sputter deposition of indium tin oxide on p-type Si substrate.
In: Applied Physics Letters, 102 (2)
doi: 10.26083/tuprints-00019830
Article, Secondary publication, Publisher's Version

Chavarría, Christopher Castro ; Payan, Sandrine ; Salvetat, Jean-Paul ; Maglione, Mario ; Klein, Andreas (2020)
Fermi Level Engineering for Large Permittivity in BaTiO3-Based Multilayers.
In: Surfaces, 3 (4)
doi: 10.3390/surfaces3040038
Article

Klein, Andreas ; Jaegermann, Wolfram (2020)
Review—Electronic Properties of 2D Layered Chalcogenide Surfaces and Interfaces grown by (quasi) van der Waals Epitaxy.
In: ECS Journal of Solid State Science and Technology, 9 (9)
doi: 10.1149/2162-8777/abb750
Article

Wendel, Philipp ; Periyannan, Shanmugapriya ; Jaegermann, Wolfram ; Klein, Andreas (2020)
Polarization dependence of ZnO Schottky barriers revealed by photoelectron spectroscopy.
In: Physical Review Materials, 4 (8)
doi: 10.1103/PhysRevMaterials.4.084604
Article

Waldow, Stephan P. ; Statham, Benjamin J. ; Wardenga, Hans F. ; Weirich, Thomas E. ; Klein, Andreas ; De Souza, Roger A. (2020)
Oxygen Surface Exchange and Tracer Diffusion in Differently Oriented Thin Films of Gd-Doped CeO2.
In: ACS Applied Materials & Interfaces, 12 (32)
doi: 10.1021/acsami.0c09605
Article

Hermans, Yannick ; Klein, Andreas ; Sarker, Hori Pada ; Huda, Mohammad N. ; Junge, Henrik ; Toupance, Thierry ; Jaegermann, Wolfram (2020)
Pinning of the Fermi Level in CuFeO 2 by Polaron Formation Limiting the Photovoltage for Photochemical Water Splitting.
In: Advanced Functional Materials, 30 (10)
doi: 10.1002/adfm.201910432
Article

Stohr, Tobias ; Fischer, Angelina ; Muench, Falk ; Antoni, Markus ; Wollstadt, Stephan ; Lohaus, Christian ; Kunz, Ulrike ; Clemens, Oliver ; Klein, Andreas ; Ensinger, Wolfgang (2020)
Electroless Nanoplating of Pd−Pt Alloy Nanotube Networks: Catalysts with Full Compositional Control for the Methanol Oxidation Reaction.
In: ChemElectroChem, 7 (3)
doi: 10.1002/celc.201901939
Article

Suzuki, Issei ; Huang, Binxiang ; Omata, Takahisa ; Klein, Andreas (2020)
Fermi Energy Limitation at β-CuGaO2 Interfaces Induced by Electrochemical Oxidation/Reduction of Cu.
In: ACS Applied Energy Materials, 3 (9)
doi: 10.1021/acsaem.0c01493
Article

Hermans, Yannick ; Olivier, Céline ; Junge, Henrik ; Klein, Andreas ; Jaegermann, Wolfram ; Toupance, Thierry (2020)
Sunlight Selective Photodeposition of CoOx(OH)y and NiOx(OH)y on Truncated Bipyramidal BiVO4 for Highly Efficient Photocatalysis.
In: ACS Applied Materials & Interfaces, 12 (48)
doi: 10.1021/acsami.0c14624
Article

Bein, Nicole S. ; Machado, Pamela ; Coll, Mariona ; Chen, Feng ; Makarovic, Maja ; Rojac, Tadej ; Klein, Andreas (2019)
Electrochemical Reduction of Undoped and Cobalt-Doped BiFeO3 Induced by Water Exposure: Quantitative Determination of Reduction Potentials and Defect Energy Levels Using Photoelectron Spectroscopy.
In: The Journal of Physical Chemistry Letters, 10
doi: 10.1021/acs.jpclett.9b02706
Article

Poulain, Raphael ; Proost, Joris ; Klein, Andreas (2019)
Sputter Deposition of Transition Metal Oxides on Silicon: Evidencing the Role of Oxygen Bombardment for Fermi Level Pinning.
In: physica status solidi (a)
doi: 10.1002/pssa.201900730
Article

Deyu, Getnet Kacha ; Muñoz-Rojas, David ; Rapenne, Laetitia ; Deschanvres, Jean-Luc ; Klein, Andreas ; Jiménez, Carmen ; Bellet, Daniel (2019)
SnO2 Films Deposited by Ultrasonic Spray Pyrolysis: Influence of Al Incorporation on the Properties.
In: Molecules, 24 (15)
doi: 10.3390/molecules24152797
Article

Rachut, Karsten ; Bayer, Thorsten J. M. ; Wolff, Jan O. ; Kmet, Brigita ; Benčan, Andreja ; Klein, Andreas (2019)
Off‐Stoichiometry of Magnetron Sputtered Ba 1− x Sr x TiO 3 Thin Films.
In: physica status solidi (b)
doi: 10.1002/pssb.201900148
Article

Suzuki, Issei ; Gura, Leonard ; Klein, Andreas (2019)
The energy level of the Fe2+/3+-transition in BaTiO3 and SrTiO3 single crystals.
In: Physical Chemistry Chemical Physics, 21
doi: 10.1039/C8CP07872F
Article

Waldow, Stephan ; Wardenga, Hans ; Beschnitt, Stefan ; Klein, Andreas ; De Souza, Roger A. (2019)
The Concentration and Diffusivity of Oxygen Interstitials in Niobia-Doped Ceria.
In: The Journal of Physical Chemistry C, 123 (11)
doi: 10.1021/acs.jpcc.8b10613
Article

Weidner, Mirko ; Fuchs, Anne ; Bayer, Thorsten J. M. ; Rachut, Karsten ; Schnell, Patrick ; Deyu, Getnet K. ; Klein, Andreas (2019)
Defect Modulation Doping.
In: Advanced Functional Materials, 29 (14)
doi: 10.1002/adfm.201807906
Article

Long, Daniel M. ; Klein, Andreas ; Dickey, Elizabeth C. (2019)
Barrier formation at BaTiO3 interfaces with Ni and NiO.
In: Applied Surface Science, 466
doi: 10.1016/j.apsusc.2018.10.040
Article

Deuermeier, Jonas ; Kiazadeh, Asal ; Klein, Andreas ; Martins, Rodrigo ; Fortunato, Elvira (2019)
Multi-Level Cell Properties of a Bilayer Cu2O/Al2O3 Resistive Switching Device.
In: Nanomaterials, 9 (2)
doi: 10.3390/nano9020289
Article

Hermans, Yannick ; Murcia-López, Sebastián ; Klein, Andreas ; Morante, Joan R. ; Krol, Roel van de ; Andreu, Teresa ; Toupance, Thierry ; Jaegermann, W. (2019)
Analysis of the interfacial characteristics of BiVO4/metal oxide heterostructures and its implication on their junction properties.
In: Physical Chemistry Chemical Physics, 21 (9)
doi: 10.1039/C8CP07483F
Article

Hermans, Yannick ; Murcia-López, Sebastián ; Klein, Andreas ; Jaegermann, Wolfram (2019)
BiVO4 Surface Reduction upon Water Exposure.
In: ACS Energy Letters, 4 (10)
doi: 10.1021/acsenergylett.9b01667
Article

Deyu, Getnet Kacha ; Hunka, Jonas ; Roussel, Hervé ; Brötz, Joachim ; Bellet, Daniel ; Klein, Andreas (2019)
Electrical Properties of Low-Temperature Processed Sn-Doped In2O3 Thin Films: The Role of Microstructure and Oxygen Content and the Potential of Defect Modulation Doping.
In: Materials, 12 (14)
doi: 10.3390/ma12142232
Article

Deyu, Getnet Kacha ; Hunka, Jonas ; Roussel, Hervé ; Brötz, Joachim ; Bellet, Daniel ; Klein, Andreas (2019)
Electrical Properties of Low-Temperature Processed Sn-Doped In₂O₃ Thin Films: The Role of Microstructure and Oxygen Content and the Potential of Defect Modulation Doping.
In: Materials, 12 (14)
doi: 10.3390/ma12142232
Article, Secondary publication

Periyannan, Shanmugapriya ; Manceriu, Laura ; Nguyen, Ngoc Duy ; Klein, Andreas ; Jaegermann, Wolfram ; Colson, Pierre ; Henrist, Catherine ; Cloots, Rudi (2019)
Influence of ZnO Surface Modification on the Photocatalytic Performance of ZnO/NiO Thin Films.
In: Catalysis Letters
doi: 10.1007/s10562-019-02781-z
Article

Hubmann, Andreas ; Dietz, Dominik ; Brötz, Joachim ; Klein, Andreas (2019)
Interface Behaviour and Work Function Modification of Self-Assembled Monolayers on Sn-Doped In2O3.
In: Surfaces, 2 (2)
doi: 10.3390/surfaces2020019
Article

Deyu, Getnet Kacha ; Muñoz-Rojas, David ; Rapenne, Laetitia ; Deschanvres, Jean-Luc ; Klein, Andreas ; Jiménez, Carmen ; Bellet, Daniel (2019)
SnO2 Films Deposited by Ultrasonic Spray Pyrolysis: Influence of Al Incorporation on the Properties.
In: Molecules, 24 (15)
doi: 10.25534/tuprints-00009683
Article, Secondary publication

Hermans, Yannick ; Klein, Andreas ; Ellmer, Klaus ; Krol, Roel van de ; Toupance, Thierry ; Jaegermann, Wolfram (2018)
Energy-Band Alignment of BiVO4 from Photoelectron Spectroscopy of Solid-State Interfaces.
In: The Journal of Physical Chemistry C, 122
doi: 10.1021/acs.jpcc.8b06241
Article

Lohaus, Christian ; Steinert, Céline ; Deyu, Getnet ; Brötz, Joachim ; Jaegermann, Wolfram ; Klein, Andreas (2018)
Enhancing electrical conductivity of room temperature deposited Sn-doped In2O3 thin films by hematite seed layers.
In: Applied Physics Letters, 112 (15)
doi: 10.1063/1.5022683
Article

Lohaus, Christian ; Klein, Andreas ; Jaegermann, Wolfram (2018)
Author Correction: Limitation of Fermi level shifts by polaron defect states in hematite photoelectrodes.
In: Nature Communications, 9 (1)
doi: 10.1038/s41467-018-07410-8
Article

Wintzheimer, Susanne ; Szczerba, Wojciech ; GuilhermeBuzanich, Ana ; Kashiwaya, Shun ; Klein, Andreas ; Jaegermann, Wolfram ; Toupance, Thierry ; Shmeliov, Aleksey ; Nicolosi, Valeria ; Heuzé, Karine ; Mandel, Karl ; Dembski, Sofia (2018)
Discovering the Determining Parameters for the Photocatalytic Activity of TiO2 Colloids Based on an Anomalous Dependence on the Specific Surface Area.
In: Particle & Particle Systems Characterization
doi: 10.1002/ppsc.201800216
Article

Poulain, Raphaël ; Klein, Andreas ; Proost, Joris (2018)
Electrocatalytic Properties of (100)-, (110)-, and (111)-Oriented NiO Thin Films toward the Oxygen Evolution Reaction.
In: The Journal of Physical Chemistry C, 122 (39)
doi: 10.1021/acs.jpcc.8b05790
Article

Kashiwaya, Shun ; Toupance, Thierry ; Klein, Andreas ; Jaegermann, Wolfram (2018)
Fermi Level Positions and Induced Band Bending at Single Crystalline Anatase (101) and (001) Surfaces: Origin of the Enhanced Photocatalytic Activity of Facet Engineered Crystals.
In: Advanced Energy Materials
doi: 10.1002/aenm.201802195
Article

Lohaus, Christian ; Klein, Andreas ; Jaegermann, Wolfram (2018)
Limitation of Fermi level shifts by polaron defect states in hematite photoelectrodes.
In: Nature Communications, 9 (1)
doi: 10.1038/s41467-018-06838-2
Article

Mseddi, Souhir ; Donner, Wolfgang ; Klein, Andreas ; Njeh, Anouar (2018)
Residual stress effect on coupling electromechanical factor of epitaxial Barium Strontium Titanate (BST) thin films.
In: Mechanics Research Communications, 87
doi: 10.1016/j.mechrescom.2017.12.001
Article

Kashiwaya, Shun ; Aymonier, Cyril ; Majimel, Jérôme ; Olivier, Céline ; Klein, Andreas ; Jaegermann, Wolfram ; Toupance, Thierry (2018)
Supercritical CO2-assisted deposition of NiO on (101)-anatase-TiO2 for efficient facet engineered photocatalysts.
In: New Journal of Chemistry, 42 (23)
doi: 10.1039/c8nj04292f
Article

Kashiwaya, Shun ; Morasch, Jan ; Streibel, Verena ; Toupance, Thierry ; Jaegermann, Wolfram ; Klein, Andreas (2018)
The Work Function of TiO2.
In: Surfaces, 1 (1)
doi: 10.3390/surfaces1010007
Article

Zurhelle, Alexander F. ; Tong, Xiaorui ; Klein, Andreas ; Mebane, David S. ; De Souza, Roger A. (2017)
A Space-Charge Treatment of the Increased Concentration of Reactive Species at the Surface of a Ceria Solid Solution.
In: Angewandte Chemie International Edition, 56 (46)
doi: 10.1002/anie.201708118
Article

Lohaus, Christian ; Steinert, Céline ; Brötz, Joachim ; Klein, Andreas ; Jaegermann, Wolfram (2017)
Systematic Investigation of the Electronic Structure of Hematite Thin Films.
In: Advanced Materials Interfaces, 4 (20)
doi: 10.1002/admi.201700542
Article

Zhang, Shan-Ting ; Rouvière, Jean-Luc ; Consonni, Vincent ; Roussel, Hervé ; Rapenne, Laetitia ; Pernot, Etienne ; Muñoz-Rojas, David ; Klein, Andreas ; Bellet, Daniel (2017)
High quality epitaxial fluorine-doped SnO2 films by ultrasonic spray pyrolysis: Structural and physical property investigation.
In: Materials & Design, 132
Article

Zhang, Shan-Ting ; Roussel, Hervé ; Chaix-Pluchery, Odette ; Langlet, Michel ; Muñoz-Rojas, David ; Bellet, Daniel ; Klein, Andreas (2017)
Polymorphism of the Blocking TiO2 Layer Deposited on F:SnO2 and Its Influence on the Interfacial Energetic Alignment.
In: The Journal of Physical Chemistry C, 121 (32)
Article

Giesecke, Ruth ; Hertwig, Ramis ; Bayer, Thorsten J. M. ; Randall, Clive A. ; Klein, Andreas (2017)
Modification of the Schottky Barrier Height at the RuO2 Cathode During Resistance Degradation of Fe-doped SrTiO3.
In: Journal of the American Ceramic Society, 100 (10)
Article

Keil, Peter ; Frömling, Till ; Klein, Andreas ; Rödel, Jürgen ; Novak, Nikola (2017)
Piezotronic effect at Schottky barrier of a metal-ZnO single crystal interface.
In: Journal of Applied Physics, 121
Article

Chaabani, Anouar ; Njeh, Anouar ; Donner, Wolfgang ; Klein, Andreas ; Ben Ghozlen, Mohamed Hédi (2017)
Elasticity study of textured barium strontium titanate thin films by X-ray diffraction and laser acoustic waves.
In: Japanese Journal of Applied Physics, 56 (5)
doi: 10.7567/JJAP.56.055501
Article

Klein, Andreas ; Lohaus, Christian ; Reiser, Patrick ; Dimesso, Lucangelo ; Wang, Xuicai ; Yang, Tongqing (2017)
Energy Band Alignment of Antiferroelectric (Pb,La)(Zr,Sn,Ti)O3.
In: Applied Surface Science, 407
Article

Deuermeier, Jonas ; Fortunato, Elvira ; Martins, Rodrigo ; Klein, Andreas (2017)
Energy band alignment at the nanoscale.
In: Applied Physics Letters, 110 (5)
Article

Hoyer, Karoline L. ; Hubmann, Andreas H. ; Klein, Andreas (2017)
Influence of dopant segregation on the work function and electrical properties of Ge-doped in comparison to Sn-doped In2O3thin films.
In: physica status solidi (a), 214 (2)
Article

Bayer, T. J. M. ; Carter, J. J. ; Wang, Jian-Jun ; Klein, Andreas ; Chen, Long-Qing ; Randall, C. A. (2017)
Determination of electrical properties of degraded mixed ionic conductors: Impedance studies with applied dc voltage.
In: Journal of Applied Physics, 122 (24)
doi: 10.1063/1.5006062
Article

Deuermeier, Jonas ; Wardenga, Hans F. ; Morasch, Jan ; Siol, Sebastian ; Nandy, Suman ; Calmeiro, Tomás ; Martins, Rodrigo ; Klein, Andreas ; Fortunato, Elvira (2016)
Highly conductive grain boundaries in copper oxide thin films.
In: Journal of Applied Physics, 119 (23)
Article

Gassmann, Jürgen ; Yampolskii, Sergey V. ; Genenko, Yuri A. ; Reusch, Thilo C. G. ; Klein, Andreas (2016)
Functional Interfaces for Transparent Organic Electronic Devices: Consistent Description of Charge Injection by Combining In Situ XPS and Current Voltage Measurements with Self-Consistent Modeling.
In: The Journal of Physical Chemistry C, 120 (19)
Article

Morasch, Jan ; Wardenga, Hans F. ; Jaegermann, Wolfram ; Klein, Andreas (2016)
Influence of grain boundaries and interfaces on the electronic structure of polycrystalline CuO thin films.
In: physica status solidi (a), 213 (6)
Article

Siol, Sebastian ; Hellmann, Jan C. ; Tilley, S. David ; Graetzel, Michael ; Morasch, Jan ; Deuermeier, Jonas ; Jaegermann, Wolfram ; Klein, Andreas (2016)
Band Alignment Engineering at Cu2O/ZnO Heterointerfaces.
In: ACS Applied Materials & Interfaces, 8 (33)
Article

Weidner, Mirko ; Jia, Junjun ; Shigesato, Yuzo ; Klein, Andreas (2016)
Comparative study of sputter-deposited SnO2 films doped with antimony or tantalum.
In: physica status solidi (b), 253 (5)
Article

Türck, Johannes ; Nonnenmacher, Hermann-Josef ; Connor, Paula M. L. ; Siol, Sebastian ; Siepchen, Bastian ; Heimfarth, Jan Peter ; Klein, Andreas ; Jaegermann, Wolfram (2016)
Copper (I) Oxide (Cu2O) based back contact for p-i-n CdTe solar cells.
In: Progress in Photovoltaics: Research and Applications, 24
Article

Blömker, Martin ; Erdem, Emre ; Li, Shunyi ; Weber, Stefan ; Klein, Andreas ; Rödel, Jürgen ; Frömling, Till (2016)
Defect Structure of Doped Lead-Free 0.9(Bi0.5Na0.5)TiO3−0.1(Bi0.5K0.5)TiO3Piezoceramics.
In: Journal of the American Ceramic Society, 99 (2)
Article

Wang, Jian-Jun ; Huang, Hou-Bing ; Bayer, Thorsten J. M. ; Moballegh, Ali ; Cao, Ye ; Klein, Andreas ; Dickey, Elizabeth C. ; Irving, Douglas L. ; Randall, Clive A. ; Chen, Long-Qing (2016)
Defect chemistry and resistance degradation in Fe-doped SrTiO3 single crystal.
In: Acta Materialia, 108
Article

Frischbier, Mareike V. ; Wardenga, Hans F. ; Weidner, Mirko ; Bierwagen, Oliver ; Jia, Junjun ; Shigesato, Yuzo ; Klein, Andreas (2016)
Influence of dopant species and concentration on grain boundary scattering in degenerately doped In2O3 thin films.
In: Thin Solid Films, 614
Article

Klein, Andreas (2016)
Interface Properties of Dielectric Oxides.
In: Journal of the American Ceramic Society, 99 (2)
Article

Lohaus, C. ; Morasch, J. ; Brötz, J. ; Klein, Andreas ; Jaegermann, W. (2016)
Investigations on RF-magnetron sputtered Co3O4 thin films regarding the solar energy conversion properties.
In: Journal of Physics D: Applied Physics, 49 (15)
Article

Hubmann, Andreas H. ; Li, Shunyi ; Zhukov, Sergey ; Seggern, Heinz von ; Klein, Andreas (2016)
Polarisation dependence of Schottky barrier heights at ferroelectric BaTiO3/RuO2 interfaces: influence of substrate orientation and quality.
In: Journal of Physics D: Applied Physics, 49 (29)
Article

Deuermeier, Jonas ; Bayer, Thorsten J. M. ; Yanagi, Hiroshi ; Kiazadeh, Asal ; Martins, Rodrigo ; Klein, Andreas ; Fortunato, Elvira (2016)
Substrate reactivity as the origin of Fermi level pinning at the Cu2O/ALD-Al2O3interface.
In: Materials Research Express, 3 (4)
Article

Wardenga, Hans F. ; Klein, Andreas (2016)
Surface Potentials of (111), (110) and (100) oriented CeO2−x thin films.
In: Applied Surface Science, 377
Article

Wardenga, Hans ; Frischbier, Mareike ; Morales-Masis, Monica ; Klein, Andreas (2015)
In Situ Hall Effect Monitoring of Vacuum Annealing of In2O3:H Thin Films.
In: Materials, 8 (2)
Article

Hillmann, Stephan ; Rachut, Karsten ; Bayer, Thorsten J. M. ; Li, Shunyi ; Klein, Andreas (2015)
Application of atomic layer deposited Al2O3as charge injection layer for high-permittivity dielectrics.
In: Semiconductor Science and Technology, 30 (2)
Article

Türck, Johannes ; Siol, Sebastian ; Mayer, Thomas ; Klein, Andreas ; Jaegermann, Wolfram (2015)
Cu2S as ohmic back contact for CdTe solar cells.
In: Thin Solid Films, 582
Article

Klein, Andreas (2015)
Energy band alignment in chalcogenide thin film solar cells from photoelectron spectroscopy.
In: Journal of Physics: Condensed Matter, 27 (13)
Article

Uddin, Md. Tamez ; Nicolas, Yohann ; Olivier, Céline ; Servant, Laurent ; Toupance, Thierry ; Li, Shunyi ; Klein, Andreas ; Jaegermann, Wolfram (2015)
Improved photocatalytic activity in RuO2–ZnO nanoparticulate heterostructures due to inhomogeneous space charge effects.
In: Phys. Chem. Chem. Phys., 17 (7)
Article

Tselev, Alexander ; Klein, Andreas ; Gassmann, Jürgen ; Jesse, Stephen ; Li, Qian ; Kalinin, Sergei V. ; Balke, Nina (2015)
Quantitative Nanometer-Scale Mapping of Dielectric Tunability.
In: Advanced Materials Interfaces, 2 (15)
Article

Aurino, P. P. ; Kalabukhov, A. ; Tuzla, N. ; Olsson, E. ; Klein, Andreas ; Erhart, P. ; Boikov, Y. A. ; Serenkov, I. T. ; Sakharov, V. I. ; Claeson, T. ; Winkler, D. (2015)
Reversible metal-insulator transition of Ar-irradiated LaAlO3/SrTiO3 interfaces.
In: Physical Review B, 92 (15)
Article

Borchert, Holger ; Scheunemann, Dorothea ; Frevert, Katja ; Witt, Florian ; Klein, Andreas ; Parisi, Jürgen (2015)
Schottky Solar Cells with CuInS2 Nanocrystals as Absorber Material.
In: Zeitschrift für Physikalische Chemie, 229 (1-2)
Article

Gassmann, Andrea ; Yampolskii, Sergey V. ; Klein, Andreas ; Albe, Karsten ; Vilbrandt, Nicole ; Pekkola, Oili ; Genenko, Yuri A. ; Rehahn, Matthias ; Seggern, Heinz von (2015)
Study of electrical fatigue by defect engineering in organic light-emitting diodes.
In: Materials Science and Engineering: B, 192
Article

Hohmann, Mareike V. ; Wachau, André ; Klein, Andreas (2014)
In situ Hall effect and conductivity measurements of ITO thin films.
In: Solid State Ionics, 262
Article

Rachut, Karsten ; Körber, Christoph ; Broetz, Joachim ; Klein, Andreas (2014)
Growth and surface properties of epitaxial SnO2.
In: physica status solidi (a), 211 (9)
Article

Adler, Tobias ; Botros, Miriam ; Witte, Wolfram ; Hariskos, Dimitrios ; Menner, Richard ; Powalla, Michael ; Klein, Andreas (2014)
Valence band offsets at Cu(In,Ga)Se2/Zn(O,S) interfaces.
In: physica status solidi (a), 211 (9)
Article

Erhart, Paul ; Klein, Andreas ; Åberg, Daniel ; Sadigh, Babak (2014)
Efficacy of the DFT + U formalism for modeling hole polarons in perovskite oxides.
In: Physical Review B, 90 (3)
Article

Hirsch, S. ; Komissinskiy, P. ; Flege, S. ; Li, S. ; Rachut, K. ; Klein, Andreas ; Alff, L. (2014)
Modification of energy band alignment and electric properties of Pt/Ba0.6Sr0.4TiO3/Pt thin-film ferroelectric varactors by Ag impurities at interfaces.
In: Journal of Applied Physics, 115 (24)
Article

Li, Shunyi ; Chen, Feng ; Schafranek, Robert ; Bayer, Thorsten J. M. ; Rachut, Karsten ; Fuchs, Anne ; Siol, Sebastian ; Weidner, Mirko ; Hohmann, Mareike ; Pfeifer, Verena ; Morasch, Jan ; Ghinea, Cosmina ; Arveux, Emmanuel ; Günzler, Richard ; Gassmann, Jürgen ; Körber, Christoph ; Gassenbauer, Yvonne ; Säuberlich, Frank ; Rao, Gutlapalli Venkata ; Payan, Sandrine ; Maglione, Mario ; Chirila, Cristina ; Pintilie, Lucian ; Jia, Lichao ; Ellmer, Klaus ; Naderer, Michael ; Reichmann, Klaus ; Böttger, Ulrich ; Schmelzer, Sebastian ; Frunza, Raluca C. ; Uršič, Hana ; Malič, Barbara ; Wu, Wen-Bin ; Erhart, Paul ; Klein, Andreas (2014)
Intrinsic energy band alignment of functional oxides.
In: physica status solidi (RRL) - Rapid Research Letters, 8 (6)
Article

Weidner, Mirko ; Broetz, Joachim ; Klein, Andreas (2014)
Sputter-deposited polycrystalline tantalum-doped SnO2 layers.
In: Thin Solid Films, 555
Article

Zuo, Yinan ; Genenko, Yuri A. ; Klein, Andreas ; Stein, Peter ; Xu, Bai-Xiang (2014)
Domain wall stability in ferroelectrics with space charges.
In: Journal of Applied Physics, 115 (8)
Article

Chen, Feng ; Wu, Wen-Bin ; Li, Shun-Yi ; Klein, Andreas (2014)
Energy band alignment at ferroelectric/electrode interface determined by photoelectron spectroscopy.
In: Chinese Physics B, 23 (1)
Article

Morasch, Jan ; Li, Shunyi ; Broetz, Joachim ; Jaegermann, Wolfram ; Klein, Andreas (2014)
Reactively magnetron sputtered Bi2O3 thin films: Analysis of structure, optoelectronic, interface, and photovoltaic properties.
In: physica status solidi (a), 211 (1)
Article

Sträter, H. ; Brüggemann, R. ; Siol, S. ; Klein, Andreas ; Jaegermann, W. ; Bauer, G. H. (2013)
Detailed photoluminescence studies of thin film Cu2S for determination of quasi-Fermi level splitting and defect levels.
In: Journal of Applied Physics, 114 (23)
Article

Siol, Sebastian ; Sträter, Hendrik ; Brüggemann, Rudolf ; Broetz, Joachim ; Bauer, Gottfried H. ; Klein, Andreas ; Jaegermann, Wolfram (2013)
PVD of copper sulfide (Cu2S) for PIN-structured solar cells.
In: Journal of Physics D: Applied Physics, 46 (49)
Article

Pfeifer, Verena ; Erhart, Paul ; Li, Shunyi ; Rachut, Karsten ; Morasch, Jan ; Brötz, Joachim ; Reckers, Philip ; Mayer, Thomas ; Rühle, Sven ; Zaban, Arie ; Mora Seró, Iván ; Bisquert, Juan ; Jaegermann, Wolfram ; Klein, Andreas (2013)
Energy Band Alignment between Anatase and Rutile TiO2.
In: The Journal of Physical Chemistry Letters, 4 (23)
Article

Witte, W. ; Powalla, M. ; Hariskos, D. ; Eicke, A. ; Botros, M. ; Schock, H.-W. ; Abou-Ras, D. ; Mainz, R. ; Rodríguez-Alvarez, H. ; Unold, T. ; Bauer, G. H. ; Brüggemann, R. ; Heise, S. J. ; Neumann, O. ; Meessen, M. ; Christen, J. ; Bertram, F. ; Klein, Andreas ; Adler, T. ; Albe, K. ; Pohl, J. ; Martin, M. ; De Souza, Roger A. ; Nagarajan, L. ; Beckers, T. ; Boit, C. ; Dietrich, J. ; Hetterich, M. ; Zhang, Z. ; Scheer, R. ; Kempa, H. ; Orgis, T. (2013)
Chemical Gradients in Cu(In,Ga)(S,Se)2 Thin-Film Solar Cells: Results of the GRACIS Project.
Article

Krishnakumar, V. ; Klein, Andreas ; Jaegermann, W. (2013)
Studies on CdTe solar cell front contact properties using X-ray photoelectron spectroscopy.
In: Thin Solid Films, 545
Article

Siepchen, B. ; Schimper, H.-J. ; Klein, Andreas ; Jaegermann, W. (2013)
SXPS studies of single crystalline CdTe/CdS interfaces.
In: Journal of Electron Spectroscopy and Related Phenomena, 190
Article

Uddin, Md. Tamez ; Nicolas, Yohann ; Olivier, Céline ; Toupance, Thierry ; Müller, Mathis M. ; Kleebe, Hans-Joachim ; Rachut, Karsten ; Ziegler, Jürgen ; Klein, Andreas ; Jaegermann, Wolfram (2013)
Preparation of RuO2/TiO2Mesoporous Heterostructures and Rationalization of Their Enhanced Photocatalytic Properties by Band Alignment Investigations.
In: The Journal of Physical Chemistry C, 117 (42)
Article

Morita, Koji ; Mera, Gabriela ; Yoshida, Kaname ; Ikuhara, Yuichi ; Klein, Andreas ; Kleebe, Hans-Joachim ; Riedel, Ralf (2013)
Thermal stability, morphology and electronic band gap of Zn(NCN).
In: Solid State Sciences, 23
doi: 10.1016/j.solidstatesciences.2013.06.008
Article

Witzel, O. ; Klein, Andreas ; Meffert, C. ; Wagner, S. ; Kaiser, S. ; Schulz, C. ; Ebert, V. (2013)
VCSEL-based, high-speed, in situ TDLAS for in-cylinder water vapor measurements in IC engines.
In: Optics Express, 21
Article

Li, Shunyi ; Morasch, Jan ; Klein, Andreas ; Chirila, Christina ; Pintilie, Lucian ; Jia, Lichao ; Ellmer, Klaus ; Naderer, Michael ; Reichmann, Klaus ; Gröting, Melanie ; Albe, Karsten (2013)
Influence of orbital contributions to the valence band alignment of Bi2O3, Fe2O3, BiFeO3, and Bi0.5Na0.5TiO3.
In: Physical Review B, 88 (4)
Article

Schneikart, A. ; Schimper, H.-J. ; Klein, Andreas ; Jaegermann, W. (2013)
Efficiency limitations of thermally evaporated thin-film SnS solar cells.
In: Journal of Physics D: Applied Physics, 46
Article

Krishnakumar, V. ; Barati, A. ; Schimper, H.-J. ; Klein, Andreas ; Jaegermann, W. (2013)
A possible way to reduce absorber layer thickness in thin film CdTe solar cells.
In: Thin Solid Films, 535
Article

Klein, Andreas (2013)
Transparent Conducting Oxides: Electronic Structure-Property Relationship from Photoelectron Spectroscopy with in-situ Sample Preparation.
In: Journal of the American Ceramic Society, 96
Article

Rein, M. H. ; Hohmann, M. V. ; Thøgersen, A. ; Mayandi, J. ; Holt, A. O. ; Klein, Andreas ; Monakhov, E. V. (2013)
An in situ x-ray photoelectron spectroscopy study of the initial stages of rf magnetron sputter deposition of indium tin oxide on p-type Si substrate.
In: Applied Physics Letters, 102 (2)
Article

Hopper, E. Mitchell ; Zhu, Qimin ; Gassmann, Jürgen ; Klein, Andreas ; Mason, Thomas O. (2013)
Surface electronic properties of polycrystalline bulk and thin film In2O3(ZnO)k compounds.
In: Applied Surface Science, 264
Article

Sträter, Hendrik ; Brüggemann, Rudolf ; Siol, Sebastian ; Klein, Andreas ; Jaegermann, Wolfram ; Bauer, Gottfried H. (2013)
Spectral Calibrated and Confocal Photoluminescence of Cu2S Thin-Film Absorber.
In: MRS Proceedings, 1538
Article

Li, Shunyi ; Zheng, Yuliang ; Jakoby, Rolf ; Klein, Andreas (2012)
Electrically Programmable Bistable Capacitor for High-Frequency Applications Based on Charge Storage at the (Ba,Sr)TiO3/Al2O3 Interface.
In: Advanced Functional Materials, 22 (22)
Article

Bayer, Thorsten J. M. ; Wachau, André ; Fuchs, Anne ; Deuermeier, Jonas ; Klein, Andreas (2012)
Atomic Layer Deposition of Al2O3 onto Sn-Doped In2O3: Absence of Self-Limited Adsorption during Initial Growth by Oxygen Diffusion from the Substrate and Band Offset Modification by Fermi Level Pinning in Al2O3.
In: Chemistry of Materials, 24 (23)
Article

Witzel, O. ; Klein, Andreas ; Wagner, S. ; Meffert, C. ; Schulz, C. ; Ebert, V. (2012)
High-speed tunable diode laser absorption spectroscopy for sampling-free in-cylinder water vapor concentration measurements in an optical IC engine.
In: Applied Physics B-Lasers and Optics, 109
Article

Chen, Feng ; Klein, Andreas (2012)
Polarization dependence of Schottky barrier heights at interfaces of ferroelectrics determined by photoelectron spectroscopy.
In: Physical Review B, 86 (9)
Article

Dusciac, Dorin ; Brizé, Virginie ; Chazalviel, Jean-Noël ; Lai, Yun-Feng ; Roussel, Hervé ; Blonkowski, Serge ; Schafranek, Robert ; Klein, Andreas ; Henry de Villeneuve, Catherine ; Allongue, Philippe ; Ozanam, François ; Dubourdieu, Catherine (2012)
Organic Grafting on Si for Interfacial SiO2 Growth Inhibition During Chemical Vapor Deposition of HfO2.
In: Chemistry of Materials, 24 (16)
Article

Hoffmann, P. S. ; Kosinova, M. ; Flege, S. ; Baake, O. ; Pollakowski, B. ; Trunova, V. ; Klein, Andreas ; Beckhoff, B. ; Kuznetsov, F. ; Ensinger, W. (2012)
Chemical interactions in the layered system BCxNy/Ni(Cu)/Si, produced by CVD at high temperature.
In: Analytical and Bioanalytical Chemistry, 404 (2)
Article

Hoffmann, P. S. ; Fainer, N. I. ; Baake, O. ; Kosinova, M. L. ; Rumyantsev, Y. M. ; Trunova, V. A. ; Klein, Andreas ; Pollakowski, B. ; Beckhoff, B. ; Ensinger, W. (2012)
Silicon carbonitride nanolayers - Synthesis and chemical characterization.
In: Thin Solid Films, 520 (18)
Article

Hoffmann, Peter S. ; Baake, Olaf ; Kosinova, Marina L. ; Beckhoff, Burkhard ; Klein, Andreas ; Pollakowski, Beatrix ; Trunova, Valentina A. ; Sulyaeva, Veronika S. ; Kuznetsov, Fedor A. ; Ensinger, Wolfgang (2012)
Chemical bonds and elemental compositions of BCxNy layers produced by chemical vapor deposition with trimethylamine borane, triethylamine borane, or trimethylborazine.
In: X-Ray Spectrometry, 41 (4)
Article

Proffit, Diana E. ; Harvey, Steven P. ; Klein, Andreas ; Schafranek, Robert ; Emery, Jonathan D. ; Buchholz, D. Bruce ; Chang, Robert P. H. ; Bedzyk, Michael J. ; Mason, Thomas O. (2012)
Surface studies of crystalline and amorphous Zn–In–Sn–O transparent conducting oxides.
In: Thin Solid Films, 520 (17)
Article

Klein, Andreas (2012)
Energy band alignment at interfaces of semiconducting oxides: A review of experimental determination using photoelectron spectroscopy and comparison with theoretical predictions by the electron affinity rule, charge neutrality levels, and the common anion rule.
In: Thin Solid Films, 520 (10)
Article

Gassmann, Jürgen ; Broetz, Joachim ; Klein, Andreas (2012)
Sputter deposition of indium tin oxide onto zinc pthalocyanine: Chemical and electronic properties of the interface studied by photoelectron spectroscopy.
In: Applied Surface Science, 258 (8)
Article

Chung, U.-C. ; Michau, D. ; Elissalde, C. ; Li, S. ; Klein, Andreas ; Maglione, M. (2012)
Evidence of diffusion at BaTiO3/silicon interfaces.
In: Thin Solid Films, 520 (6)
Article

Heller, Markus ; Schmeling, Benjamin ; Heinzl, Steffen ; Leidig, Torsten ; Duddy, Keith ; Sandfuchs, Thorsten ; Klein, Andreas ; Allgaier, Matthias
eds.: Barros, Alistair ; Oberle, Daniel (2012)
Enabling USDL by Tools.
In: Handbook of Service Description
Book Section

Renard, Laetitia ; Babot, Odile ; Saadaoui, Hassan ; Fuess, Hartmut ; Broetz, Joachim ; Gurlo, Aleksander ; Arveux, Emmanuel ; Klein, Andreas ; Toupance, Thierry (2012)
Nanoscaled tin dioxide films processed from organotin-based hybrid materials: An organometallic route toward metal oxide gas sensors.
In: Nanoscale, 4 (21)
Article

Klein, Andreas ; Mayer, Thomas ; Thissen, Andreas ; Jaegermann, Wolfram (2012)
Photoelectron Spectroscopy in Materials Science and Physical Chemistry: Analysis of Composition, Chemical Bonding, and Electronic Structure of Surfaces and Interfaces.
In: Methods in Physical Chemistry
Book Section

Alff, Lambert ; Klein, Andreas ; Komissinskiy, Philipp ; Kurian, Jose
eds.: Riedel, Ralf ; Chen, I-Wei (2012)
Vapor-Phase Deposition of Oxides.
In: Ceramics Science and Technology
Book Section

Pohl, Johan ; Klein, Andreas ; Albe, Karsten (2011)
Role of copper interstitials in CuInSe2: First-principles calculations.
In: Physical Review B, 84 (12)
Article

Schaffner, Judith ; Motzko, Markus ; Tueschen, Alexander ; Swirschuk, Andreas ; Schimper, Hermann-Josef ; Klein, Andreas ; Modes, Thomas ; Zywitzki, Olaf ; Jaegermann, Wolfram (2011)
12% efficient CdTe/CdS thin film solar cells deposited by low-temperature close space sublimation.
In: Journal of Applied Physics, 110
Article

Krishnakumar, V. ; Han, J. ; Klein, Andreas ; Jaegermann, W. (2011)
CdTe thin film solar cells with reduced CdS film thickness.
In: Thin Solid Films, 519 (21)
Article

Feldmeier, E. M. ; Fuchs, A. ; Schaffner, J. ; Schimper, H.-J. ; Klein, Andreas ; Jaegermann, W. (2011)
Comparison between the structural, morphological and optical properties of CdS layers prepared by Close Space Sublimation and RF magnetron sputtering for CdTe solar cells.
In: Thin Solid Films, 519 (21)
Article

Schaffner, J. ; Feldmeier, E. ; Swirschuk, A. ; Schimper, H.-J. ; Klein, Andreas ; Jaegermann, W. (2011)
Influence of substrate temperature, growth rate and TCO substrate on the properties of CSS deposited CdS thin films.
In: Thin Solid Films, 519 (21)
Article

Zakutayev, Andriy ; Tate, Janet ; Xie, Sujing ; Gibbons, Brady J. ; Platt, Heather A. S. ; Keszler, Douglas A. ; Barati, Alireza ; Klein, Andreas ; Jaegermann, Wolfram (2011)
Interdiffusion at the BaCuSeF/ZnTe interface.
In: Thin Solid Films, 519 (21)
Article

Hohmann, Mareike V. ; Ágoston, Péter ; Wachau, André ; Bayer, Thorsten J. M. ; Broetz, Joachim ; Albe, Karsten ; Klein, Andreas (2011)
Orientation dependent ionization potential of In2O3: A natural source for inhomogeneous barrier formation at electrode interfaces in organic electronics.
In: Journal of Physics: Condensed Matter, 23 (33)
Article

Pusch, Casper ; Hoche, Holger ; Berger, Christina ; Riedel, Ralf ; Ionescu, Emanuel ; Klein, Andreas (2011)
Influence of the PVD sputtering method on structural characteristics of SiCN-coatings — Comparison of RF, DC and HiPIMS sputtering and target configurations.
In: Surface and Coatings Technology, 205 (Supplement 2)
Article

Schafranek, Robert ; Li, Shunyi ; Chen, Feng ; Wu, Wenbin ; Klein, Andreas (2011)
PbTiO3/SrTiO3 interface: Energy band alignment and its relation to the limits of Fermi level variation.
In: Physical Review B, 84 (4)
Article

Chen, Feng ; Schafranek, Robert ; Wu, Wenbin ; Klein, Andreas (2011)
Reduction-induced Fermi level pinning at the interfaces between Pb(Zr,Ti)O3 and Pt, Cu and Ag metal electrodes.
In: Journal of Physics D: Applied Physics, 44 (25)
Article

Deuermeier, Jonas ; Gassmann, Jürgen ; Broetz, Joachim ; Klein, Andreas (2011)
Reactive magnetron sputtering of Cu2O: Dependence on oxygen pressure and interface formation with indium tin oxide.
In: Journal of Applied Physics, 109 (11)
Article

Baake, Olaf ; Hoffmann, P. S. ; Ensinger, Wolfgang ; Klein, Andreas ; Beckhoff, B. ; Polakovski, P. ; Ulm, G. ; Trunova, V. A. ; Kosinova, M. L. ; Sulyaeva, V. S. ; Rumjantsev, Yu. M. ; Fainer, N. I. ; Kuznetsov, F. A. (2011)
Bestimmung chemischer Bindungen in dünnen Schichten von Borcarbonitrid BCxNy mit Hilfe von XPS und TXRF-NEXAFS.
In: Zavodskaya Laboratoriya: diagnostika materialov, 77 (5)
Article

Han, Junfeng ; Spanheimer, C. ; Haindl, G. ; Fu, Ganhua ; Krishnakumar, V. ; Schaffner, J. ; Fan, Chunjie ; Zhao, Kui ; Klein, Andreas ; Jaegermann, Wolfram (2011)
Optimized chemical bath deposited CdS layers for the improvement of CdTe solar cells.
In: Solar Energy Materials and Solar Cells, 95 (3)
Article

Han, J. ; Liao, C. ; Jiang, T. ; Fu, G. ; Krishnakumar, V. ; Spanheimer, C. ; Haindl, G. ; Zhao, K. ; Klein, Andreas ; Jaegermann, W. (2011)
Annealing effects on the chemical deposited CdS films and the electrical properties of CdS/CdTe solar cells.
In: Materials Research Bulletin, 46 (2)
Article

Koerber, Christoph ; Wachau, André ; Agoston, Peter ; Albe, Karsten ; Klein, Andreas (2011)
Self-limited oxygen exchange kinetics at SnO2 surfaces.
In: Phys. Chem. Chem. Phys., 13 (8)
Article

Li, Shunyi ; Ghinea, Cosmina ; Bayer, Thorsten J. M. ; Motzko, Markus ; Schafranek, Robert ; Klein, Andreas (2011)
Electrical properties of (Ba,Sr)TiO3 thin films with Pt and ITO electrodes: dielectric and rectifying behaviour.
In: Journal of Physics: Condensed Matter, 23 (33)
Article

Fuchs, A. ; Schimper, H.-J. ; Klein, Andreas ; Jaegermann, W. (2011)
Photoemission studies on undoped SnO2 buffer layers for CdTe thin film solar cells.
In: Energy Procedia, 10
Article

Han, J. ; Liao, C. ; Jiang, T. ; Spanheimer, C. ; Haindl, G. ; Fu, G. ; Krishnakumar, V. ; Zhao, K. ; Klein, Andreas ; Jaegermann, W. (2011)
An optimized multilayer structure of CdS layer for CdTe solar cells application.
In: Journal of Alloys and Compounds, 509 (17)
Article

Hoche, Holger ; Pusch, Casper ; Riedel, Ralf ; Fasel, Claudia ; Klein, Andreas (2010)
Properties of SiCN coatings for high temperature applications — Comparison of RF-, DC- and HPPMS-sputtering.
In: Surface and Coatings Technology, 205
doi: 10.1016/j.surfcoat.2010.03.039
Article

Klein, Andreas ; Siepchen, Bastian ; Späth, Bettina ; Mankel, Eric ; Mayer, Thomas ; Jaegermann, Wolfram (2010)
Resonant photoemission shake-up satellites from semiconductors with shallow 3d and 4d core levels.
In: physica status solidi (b), 248 (2)
Article

Hoche, Holger ; Pusch, Casper ; Riedel, Ralf ; Fasel, Claudia ; Klein, Andreas (2010)
Properties of SiCN coatings for high temperature applications - Comparison of RF-, DC- and HPPMS-sputtering.
In: Surface & coatings technology, 205
Article

Klein, Andreas ; Körber, C. ; Wachau, A. ; Säuberlich, F. ; Gassenbauer, Y. ; Harvey, S. P. ; Proffit, D. E. ; Mason, T. O. (2010)
Transparent Conducting Oxides for Photovoltaics: Manipulation of Fermi Level, Work Function, and Energy Band Alignment.
In: Materials, 3
Article

Chen, Feng ; Schafranek, Robert ; Wachau, André ; Zhukov, Sergey ; Glaum, Julia ; Granzow, Torsten ; Seggern, Heinz von ; Klein, Andreas (2010)
Barrier heights, polarization switching, and electrical fatigue in Pb(Zr,Ti)O3 ceramics with different electrodes.
In: Journal of Applied Physics, 108 (10)
Article

Baake, O. ; Hoffmann, P. S. ; Kosinova, M. L. ; Klein, Andreas ; Pollakowski, B. ; Beckhoff, B. ; Fainer, N. I. ; Trunova, V. A. ; Ensinger, W. (2010)
Analytical characterization of BCxNy films generated by LPCVD with triethylamine borane.
In: Analytical and Bioanalytical Chemistry, 398 (2)
Article

Agoston, Peter ; Koerber, Christoph ; Klein, Andreas ; Puska, Martti J. ; Nieminen, Risto M. ; Albe, Karsten (2010)
Limits for n-type doping in In2O3 and SnO2: A theoretical approach by first-principles calculations using hybrid-functional methodology.
In: Journal of Applied Physics, 108 (5)
Article

Arveux, E. ; Payan, S. ; Maglione, M. ; Klein, Andreas (2010)
Surface segregation in Nb-doped BaTiO3 films.
In: Applied Surface Science, 256 (21)
Article

Chen, F. ; Schafranek, R. ; Li, S. ; Wu, W. B. ; Klein, Andreas (2010)
Energy band alignment between Pb(Zr,Ti)O3 and high and low work function conducting oxides — from hole to electron injection.
In: Journal of Physics D: Applied Physics, 43 (29)
Article

Li, Shunyi ; Wachau, André ; Schafranek, Robert ; Klein, Andreas ; Zheng, Yuliang ; Jakoby, Rolf (2010)
Energy level alignment and electrical properties of (Ba,Sr)TiO3/Al2O3 interfaces for tunable capacitors.
In: Journal of Applied Physics, 108 (1)
Article

Zakutayev, A. ; Tate, J. ; Platt, H. A. S. ; Keszler, D. A. ; Hein, C. ; Mayer, T. ; Klein, Andreas ; Jaegermann, W. (2010)
Electronic properties of BaCuChF (Ch = S, Se, Te) surfaces and BaCuSeF/ZnPc interfaces.
In: Journal of Applied Physics, 107 (10)
Article

Zakutayev, A. ; Tate, Janet ; Platt, H. A. S. ; Keszler, D. A. ; Barati, A. ; Klein, Andreas ; Jaegermann, W. (2010)
Band alignment at the BaCuSeF/ZnTe interface.
In: Applied Physics Letters, 96 (16)
Article

Körber, Christoph ; Suffner, Jens ; Klein, Andreas (2010)
Surface Energy Controlled Preferential Orientation of Thin Films.
In: Journal of Physics D: Applied Physics, 43 (5)
Article

Schafranek, R. ; Schaffner, J. ; Klein, Andreas (2010)
In situ Photoelectron study of the (Ba,Sr)TiO3/RuO2 contact formation.
In: Journal of the European Ceramic Society, 30 (2)
Article

Han, Junfeng ; Fan, Chunjie ; Spanheimer, Christina ; Fu, Ganhua ; Zhao, Kui ; Klein, Andreas ; Jaegermann, Wolfram (2010)
Electrical properties of the CdTe back contact: A new chemically etching process based on nitric acid/acetic acid mixtures.
In: Applied Surface Science, 256
Article

Körber, C. ; Krishnakumar, V. ; Klein, Andreas ; Panaccione, G. ; Torelli, P. ; Walsh, A. ; Lopes Ferreira da Silva, J. ; Wei, S.-H. ; Egdell, R. G. ; Payne, D. J. (2010)
Electronic structure of In2O3 and Sn-doped In2O3 by hard x-ray photoemission spectroscopy.
In: Physical Review B, 81 (16)
Article

Chung, U-Chan ; Elissalde, Catherine ; Mompiou, Frédéric ; Majimel, Jérôme ; Gomez, Sonia ; Estournès, Claude ; Marinel, Sylvain ; Klein, Andreas ; Weill, François ; Michau, Dominique ; Mornet, Stéphane ; Maglione, Mario (2010)
Interface Investigation in Nanostructured BaTiO3/silica Composite Ceramics.
In: Journal of the American Ceramic Society, 93
Article

Klein, Andreas ; Körber, C. ; Wachau, A. ; Säuberlich, F. ; Gassenbauer, Y. ; Schafranek, R. ; Harvey, S. P. ; Mason, T. O. (2009)
Surface potentials of magnetron sputtered transparent conducting oxides.
In: Thin Solid Films, 518 (4)
Article

Chen, Feng ; Schafranek, Robert ; Wu, Wenbin ; Klein, Andreas (2009)
Formation and modification of Schottky barriers at the PZT/Pt interface.
In: Journal of Physics D: Applied Physics, 42 (21)
Article

Baake, Olaf ; Hoffmann, Peter ; Klein, Andreas ; Pollakowski, Beatrix ; Beckhoff, Burkhard ; Kosinova, Marina ; Fainer, Nadeshda ; Sulyaeva, Veronica ; Trunova, Valentina ; Ensinger, Wolfgang (2009)
Speciation of BCxNy films grown by PECVD with trimethylborazine precursor.
In: Analytical and Bioanalytical Chemistry, 395 (6)
Article

Agoston, Peter ; Erhart, Paul ; Klein, Andreas ; Albe, Karsten (2009)
Geometry, electronic structure and thermodynamic stability of intrinsic point defects in indium oxide.
In: Journal of Physics: Condensed Matter, 21 (45)
Article

Jaegermann, W. ; Klein, Andreas ; Mayer, T. (2009)
Interface Engineering of Inorganic Thin-Film Solar Cells - Materials-Science Challenges for Advanced Physical Concepts.
In: Advanced Materials, 21 (42)
Article

Körber, Christoph ; Ágoston, Péter ; Klein, Andreas (2009)
Surface and bulk properties of sputter deposited undoped and Sb-doped SnO2 thin films.
In: Sensors and Actuators B: Chemical, 139 (2)
Article

Baake, O. ; Fainer, N. I. ; Hoffmann, P. S. ; Kosinova, M. L. ; Rumyantsev, Y. M. ; Trunova, V. A. ; Klein, Andreas ; Ensinger, W. ; Pollakowski, B. ; Beckhoff, B. ; Ulm, G. (2009)
Chemical characterization of SiCxNy nanolayers by FTIR-and Raman spectroscopy, XPS and TXRF-NEXAFS.
In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 603 (1-2)
Article

Gassenbauer, Y. ; Wachau, A. ; Klein, Andreas (2009)
Chemical and electronic properties of the ITO/Al2O3 interface.
In: Physical Chemistry Chemical Physics, 11 (17)
Article

Schafranek, Robert ; Giere, André ; Balogh, Adam G. ; Enz, Thorsten ; Zheng, Yuliang ; Scheele, Patrick ; Jakoby, Rolf ; Klein, Andreas (2009)
Influence of sputter deposition parameters on the properties of tunable barium strontium titanate thin films for microwave applications.
In: Journal of the European Ceramic Society, 29 (8)
Article

Harvey, S. P. ; Mason, T. O. ; Körber, C. ; Klein, Andreas (2009)
Bulk defect chemistry and surface electronic behavior of Zn,Sn codoped In2O3 transparent conducting oxides.
In: Physical Chemistry Chemical Physics, 11 (17)
Article

Krishnakumar, V. ; Ramamurthi, K. ; Klein, Andreas ; Jaegermann, W. (2009)
Band alignment of differently treated TCO/CdS interface.
In: Thin Solid Films, 517 (7)
Article

Luschitz, J. ; Siepchen, B. ; Schaffner, J. ; Lakus-Wollny, K. ; Haindl, G. ; Klein, Andreas ; Jaegermann, W. (2009)
CdTe thin film solar cells: Interrelation of nucleation, structure, and performance.
In: Thin Solid Films, 517 (7)
Article

Baake, O. ; Hoffmann, P. S. ; Klein, Andreas ; Pollakowski, B. ; Beckhoff, B. ; Ensinger, W. ; Kosinova, M. ; Fainer, N. ; Sulyaeva, V. S. ; Trunova, V. (2009)
Chemical character of BCxNy layers grown by CVD with trimethylamine borane.
In: X-Ray Spectrometry, 38 (1)
Article

Barati, A. ; Klein, Andreas ; Jaegermann, W. (2009)
Deposition and characterization of highly p-type antimony doped ZnTe thin films.
In: Thin Solid Films, 517 (7)
Article

Jatta, Sandro ; Haberle, Klaus ; Klein, Andreas ; Schafranek, Robert ; Koegel, Benjamin ; Meissner, Peter (2009)
Depositon of Dielectric Films with Inductively Coupled Plasma-CVD in Dependence on Pressure and Two RF-Power-Sources.
In: Plasma Processes and Polymers, 6 (S1)
Article

Piper, L. F. J. ; DeMasi, A. ; Cho, S. W. ; Smith, K. E. ; Fuchs, F. ; Bechstedt, F. ; Körber, C. ; Klein, Andreas ; Payne, D. J. ; Egdell, R. G. (2009)
Electronic structure of In2O3 from resonant x-ray emission spectroscopy.
In: Applied Physics Letters, 94 (2)
Article

Körber, C. ; Harvey, S. ; Mason, T. ; Klein, Andreas (2008)
Barrier heights at the SnO2/Pt interface: In situ photoemission and electrical properties.
In: Surface Science, 602 (21)
Article

Siepchen, B. ; Klein, Andreas ; Jaegermann, W. (2008)
Interface formation in CdTe solar cells: Nucleation of CdTe on CdS(0001) and (10-10).
In: physica status solidi (RRL) - Rapid Research Letters, 2 (4)
Article

Harvey, S. P. ; Mason, T. O. ; Körber, C. ; Gassenbauer, Y. ; Klein, Andreas (2008)
Evidence for surface dipole modifications in In2O3-based transparent conductors.
In: Applied Physics Letters, 92 (25)
Article

Schafranek, R. ; Payan, S. ; Maglione, M. ; Klein, Andreas (2008)
Barrier height at (Ba,Sr)TiO3/Pt interfaces studied by photoemission.
In: Physical Review B, 77 (19)
Article

Walsh, Aron ; Lopes Ferreira da Silva, Juarez ; Wei, Su-Huai ; Körber, C. ; Klein, Andreas ; Piper, L. ; DeMasi, Alex ; Smith, Kevin ; Panaccione, G. ; Torelli, P. ; Payne, D. ; Bourlange, A. ; Egdell, R. (2008)
Nature of the Band Gap of In2O3 Revealed by First-Principles Calculations and X-Ray Spectroscopy.
In: Physical Review Letters, 100 (16)
Article

Giere, A. ; Schafranek, R. ; Zheng, Y. ; Maune, H. ; Sazegar, M. ; Jakoby, Rolf ; Klein, Andreas (2008)
Characterization of Acoustic Effects in Ferroelectric Thin-Films for Microwave Components.
In: Frequenz, 62 (3-4)
Article

Harvey, S. P. ; Mason, T. O. ; Buchholz, D. B. ; Chang, R. P. H. ; Körber, C. ; Klein, Andreas (2008)
Carrier Generation and Inherent Off-Stoichiometry in Zn, Sn Codoped Indium Oxide (ZITO) Bulk and Thin-Film Specimens.
In: Journal of the American Ceramic Society, 91 (2)
Article

Luschitz, J. ; Siepchen, B. ; Schaffner, J. ; Lakus-Wollny, K. ; Klein, Andreas ; Jaegermann, W. (2008)
CdTe solar cells: Nucleation, structure, and performance.
San Diego, CA, USA (11-16 Mai 2008)
Conference or Workshop Item

Klein, Andreas ; Dieker, H. ; Späth, B. ; Fons, P. ; Kolobov, A. ; Steimer, C. ; Wuttig, M. (2008)
Changes in Electronic Structure and Chemical Bonding upon Crystallization of the Phase Change Material GeSb2Te4.
In: Physical Review Letters, 100 (1)
Article

Mayer, Thomas ; Hunger, Ralf ; Klein, Andreas ; Jaegermann, Wolfram (2008)
Engineering the line up of electronic energy levels at inorganic-organic semiconductor interfaces by variation of surface termination and by substitution.
In: physica status solidi (b), 245 (9)
Article

Klein, Andreas ; Mayer, T. ; Thissen, A. ; Jaegermann, W. (2008)
Photoelectron Spectroscopy in Materials Science and Physical Chemistry: Analysis of Composition, Chemical Bonding, and Electronic Structure of Surfaces and Interfaces.
In: Bunsen-Magazin, 10
Article

Klein, Andreas ; Säuberlich, F.
eds.: Ellmer, K. ; Klein, A. ; Rech, B. (2008)
Surfaces and Interfaces of Sputter-Deposited ZnO Films.
In: Transparent Conductive Zinc Oxide: Basics and Applications in Thin Film Solar Cells
doi: 10.1007/978-3-540-73612-7_4
Book Section

Ellmer, K. ; Klein, Andreas
eds.: Ellmer, K. ; Klein, A. ; Rech, B. (2008)
ZnO and Its Applications.
In: Transparent Conductive Zinc Oxide: Basics and Applications in Thin Film Solar Cells
Book Section

Späth, B. ; Lakus-Wollny, K. ; Fritsche, J. ; Ferekides, C. ; Klein, Andreas ; Jaegermann, W. (2007)
Surface science studies of Cu containing back contacts for CdTe solar cells.
In: Thin Solid Films, 515 (15)
Article

Hoffmann, P. ; Baake, O. ; Beckhoff, B. ; Ensinger, W. ; Fainer, N. ; Klein, Andreas ; Kosinova, M. ; Pollakowski, B. ; Trunova, V. ; Ulm, G. ; Weser, J. (2007)
Chemical bonding in carbonitride nanolayers.
In: Nuclear Instruments and Methods in Physics Research Section A, 575 (1-2)
Article

Luschitz, J. ; Lakus-Wollny, K. ; Klein, Andreas ; Jaegermann, W. (2007)
Growth regimes of CdTe deposited by close-spaced sublimation for application in thin film solar cells.
In: Thin Solid Films, 515 (15)
Article

Erhart, Paul ; Klein, Andreas ; Egdell, Russell ; Albe, Karsten (2007)
Band structure of indium oxide: Indirect versus direct band gap.
In: Physical Review B, 75 (15)
Article

Jaeckel, B. ; Lim, T. ; Klein, Andreas ; Jaegermann, W. ; Parkinson, B. A. (2007)
Deposition of Tetracene on GaSe Passivated Si(111).
In: Langmuir, 23 (9)
Article

Klein, Andreas ; Säuberlich, F. ; Späth, B. ; Schulmeyer, T. ; Kraft, D. (2007)
Non-stoichiometry and electronic properties of interfaces.
In: Journal of Materials Science, 42 (6)
Article

Hunger, R. ; Lebedev, M. ; Sakurai, K. ; Schulmeyer, T. ; Mayer, T. ; Klein, Andreas ; Niki, S. ; Jaegermann, W. (2007)
Junction formation of CuInSe2 with CdS: A comparative study of “dry” and “wet” interfaces.
In: Thin Solid Films, 515 (15)
Article

Späth, B. ; Fritsche, J. ; Klein, Andreas ; Jaegermann, W. (2007)
Nitrogen doping of ZnTe and its influence on CdTe∕ZnTe interfaces.
In: Applied Physics Letters, 90 (6)
Article

Gassenbauer, Y. ; Schafranek, R. ; Klein, Andreas ; Zafeiratos, S. ; Hävecker, M. ; Knop-Gericke, A. ; Schlögl, R. (2006)
Surface potential changes of semiconducting oxides monitored by high-pressure photoelectron spectroscopy: Importance of electron concentration at the surface.
In: Solid State Ionics, 177 (35-36)
Article

Schafranek, R. ; Klein, Andreas (2006)
In situ photoemission study of the contact formation of (Ba,Sr)TiO3 with Cu and Au.
In: Solid State Ionics, 177 (19-25)
Article

Harvey, S. P. ; Mason, T. O. ; Gassenbauer, Y. ; Schafranek, R. ; Klein, Andreas (2006)
Surface versus bulk electronic/defect structures of transparent conducting oxides: I. Indium oxide and ITO.
In: Journal of Physics D: Applied Physics, 39 (18)
Article

Gassenbauer, Y. ; Schafranek, R. ; Klein, Andreas ; Zafeiratos, S. ; Hävecker, M. ; Knop-Gericke, A. ; Schlögl, R. (2006)
Surface states, surface potentials, and segregation at surfaces of tin-doped In2O3.
In: Physical Review B, 73 (24)
Article

Erhart, Paul ; Albe, Karsten ; Klein, Andreas (2006)
First-principles study of intrinsic point defects in ZnO: Role of band structure, volume relaxation, and finite-size effects.
In: Physical Review B, 73 (20)
Article

Sivasankar Reddy, A. ; Sreedhara Reddy, P. ; Uthanna, S. ; Venkata Rao, G. ; Klein, Andreas (2006)
Effect of substrate temperature on the physical properties of dc magnetron sputtered Cu2O films.
In: physica status solidi (a), 203 (5)
Article

Gassenbauer, Yvonne ; Klein, Andreas (2006)
Electronic and Chemical Properties of Tin-Doped Indium Oxide (ITO) Surfaces and ITO/ZnPc Interfaces Studied In-situ by Photoelectron Spectroscopy.
In: The Journal of Physical Chemistry B, 110 (10)
Article

Rüggeberg, F. ; Klein, Andreas (2006)
The In2O3/CdTe interface: A possible contact for thin film solar cells?
In: Applied Physics A, 82 (2)
Article

Klein, Andreas ; Schulmeyer, T.
eds.: Siebentritt, Susanne ; Rau, Uwe (2006)
Interfaces of Cu-Chalcopyrites.
In: Wide-Gap Chalcopyrites
Book Section

Ensling, D. ; Thißen, A. ; Gassenbauer, Y. ; Klein, Andreas ; Jaegermann, W. (2005)
In-Situ Preparation and Analysis of Functional Oxides.
In: Advanced Engineering Materials, 7 (10)
Article

Fritsche, J. ; Klein, Andreas ; Jaegermann, W. (2005)
Thin film solar cells: Materials science at interfaces.
In: Advanced Engineering Materials, 7 (10)
Article

Erhart, Paul ; Klein, Andreas ; Albe, Karsten (2005)
First-principles study of the structure and stability of oxygen defects in zinc oxide.
In: Physical Review B, 72 (8)
Article

Rao, G. V. ; Saeuberlich, F. ; Klein, Andreas (2005)
Influence of Mg content on the band alignment at CdS/(Zn,Mg)O interfaces.
In: Applied Physics Letters, 87 (3)
Article

Schulmeyer, T. ; Hunger, R. ; Fritsche, R. ; Jäckel, B. ; Jaegermann, W. ; Klein, Andreas ; Kniese, R. ; Powalla, M. (2005)
Interfaces of chalcogenide solar cells: A study of the composition at the Cu(In,Ga)Se2/CdS contact.
In: Thin Solid Films, 480-481
doi: 10.1016/j.tsf.2004.11.021
Article

Hunger, R. ; Schulmeyer, T. ; Klein, Andreas ; Jaegermann, W. ; Lebedev, M. V. ; Sakurai, K. ; Niki, S. (2005)
SXPS investigation of the Cd partial electrolyte treatment of CuInSe2 absorbers.
Proceedings of Symposium O on Thin Film Chalcogenide Photovoltaic Materials, EMRS 2004. Strasbourg, France (24 - 28 Mai 2004)
Conference or Workshop Item

Späth, B. ; Fritsche, J. ; Säuberlich, F. ; Klein, Andreas ; Jaegermann, W. (2005)
Studies of sputtered ZnTe films as interlayer for the CdTe thin film solar cell.
In: Thin Solid Films, 480/481
doi: 10.1016/j.tsf.2004.11.073
Article

Rudolph, R. ; Pettenkofer, C. ; Bostwick, A. A. ; Adams, J. A. ; Ohuchi, F. ; Olmstead, M. A. ; Jaeckel, B. ; Klein, Andreas ; Jaegermann, W. (2005)
Electronic structure of the Si(111): GaSe van der Waals-like surface termination.
In: New Journal of Physics, 7
Article

Wisotzki, E. ; Klein, Andreas ; Jaegermann, W. (2005)
Van der Waals' condensation of ZnSe on layered GaSe van der Waals' surfaces: A new route to self-organized well-defined quantum dot structures.
In: Advanced Materials, 17 (9)
Article

Jaegermann, W. ; Klein, Andreas ; Fritsche, J. ; Kraft, D. ; Späth, B. (2005)
Interfaces in CdTe solar cells: From idealized concepts to technology.
In: Materials Research Society Symposium Proceedings, 865
Article

Klein, Andreas ; Jaegermann, W. ; Fritsche, J. ; Hunger, R. ; Kraft, D. ; Säuberlich, F. ; Schulmeyer, T. ; Späth, B. (2005)
Interfaces in thin film solar cells.
(3. - 7. Januar 2005)
Conference or Workshop Item

Jaeckel, B. ; Fritsche, R. ; Klein, Andreas ; Jaegermann, W. (2005)
ZnS deposition onto bare and GaSe terminated Silicon-(111)-surfaces.
In: AIP conference proceedings, 772 (1)
Article

Späth, B. ; Fritsche, J. ; Klein, Andreas ; Jaegermann, W. (2005)
p-ZnTe back contacts for CdTe thin film solar cells.
In: Materials Research Society Symposium Proceedings, 865
Article

Klein, Andreas (2004)
Interface Analysis of Thin Film Solar Cells Using Photoelectron Spectroscopy.
In: Advances in Solid State Physics, 44
Article

Islam, A. B. M. O. ; Thissen, A. ; Klein, Andreas ; Jaegermann, W. (2004)
Deposition of the layered semiconductor SnS2 onto H-terminated Si(111) surfaces: Failure of van der Waals epitaxy and possible implications.
In: Surface Science, 572 (2-3)
Article

Schulmeyer, T. ; Klein, Andreas ; Kniese, R. ; Powalla, M. (2004)
Band offset at the In2S3/CuGaSe2 heterointerface.
In: Applied Physics Letters, 85 (6)
Article

Gassenbauer, Yvonne ; Klein, Andreas (2004)
Electronic surface properties of rf-magnetron sputtered In2O3:Sn.
In: Solid State Ionics, 173 (1-4)
Article

Fritsche, R. ; Jaeckel, B. ; Klein, Andreas ; Jaegermann, W. (2004)
High-resolution photoemission study of the Si(111)/Au interface and its modification by GaSe van der Waals termination layer.
In: Applied Surface Science, 234 (1-4)
Article

Hunger, R. ; Schulmeyer, T. ; Klein, Andreas ; Jaegermann, W. ; Sakurai, K. ; Yamada, A. ; Fons, P. ; Matsubara, K. ; Niki, S. (2004)
An option for the surface science on Cu chalcopyrites: the selenium capping and decapping process.
In: Surface Science, 557 (1-3)
Article

Schulmeyer, T. ; Hunger, R. ; Klein, Andreas ; Jaegermann, W. ; Niki, S. (2004)
Photoemission study and band alignment of the CuInSe2(001)/CdS heterojunction.
In: Applied Physics Letters, 84 (16)
Article

Schulmeyer, T. ; Kniese, R. ; Hunger, R. ; Jaegermann, W. ; Powalla, M. ; Klein, Andreas (2004)
Influence of Cu(In,Ga)Se2 band gap on the valence band offset with CdS.
In: Thin Solid Films, 451-452
Article

Yu, S. ; Müller, N. ; Heinzmann, U. ; Pettenkofer, C. ; Klein, Andreas ; Blaha, P. (2004)
Band symmetries of GaSe(0001) studied by spin-resolved electron spectroscopy using circularly polarized radiation.
In: Physical Review B, 69 (4)
Article

Liu, G. ; Klein, Andreas ; Thissen, A. ; Jaegermann, W. (2003)
Electronic properties and interface characterization of phthalocyanine and Ru-polypyridine dyes on TiO2 surface.
In: Surface Science, 539 (1-3)
Article

Kraft, D. ; Weiler, U. ; Tomm, Y. ; Thissen, A. ; Klein, Andreas ; Jaegermann, W. (2003)
Alternative back contacts for CdTe solar cells: a photoemission study of the VSe2/CdTe and TiSe2/CdTe interface formation.
In: Thin Solid Films, 431-432
Article

Schulmeyer, T. ; Fritsche, J. ; Thißen, A. ; Klein, Andreas ; Jaegermann, W. ; Campo, M. ; Beier, J. (2003)
Effect of in situ UHV CdCl2-activation on the electronic properties of CdTe thin film solar cells.
In: Thin Solid Films, 431-432
Article

Fritsche, J. ; Schulmeyer, T. ; Thißen, A. ; Klein, Andreas ; Jaegermann, W. (2003)
Interface modification of CdTe thin film solar cells by CdCl2-activation.
In: Thin Solid Films, 431-432
Article

Säuberlich, F. ; Fritsche, J. ; Hunger, R. ; Klein, Andreas (2003)
Properties of sputtered ZnO films and its interfaces with CdS.
In: Thin Solid Films, 431-432
Article

Liu, G. ; Schulmeyer, T. ; Thißen, A. ; Klein, Andreas ; Jaegermann, W. (2003)
In situ preparation and interface characterization of TiO2/Cu2S heterointerface.
In: Applied Physics Letters, 82 (14)
Article

Klein, Andreas (2003)
Electronic properties of thin film semiconductor interfaces.
Habilitation

Liu, G. ; Schulmeyer, T. ; Brötz, J. ; Klein, Andreas ; Jaegermann, W. (2003)
Interface properties and band alignment of Cu2S/CdS thin film solar cells.
In: Thin Solid Films, 431/432
Article

Säuberlich, F. ; Klein, Andreas (2003)
Band Alignment at Oxide Semiconductor Interfaces.
In: MRS Proceedings, 763
Article

Kraft, D. ; Thissen, A. ; Broetz, J. ; Flege, S. ; Campo, M. ; Klein, Andreas ; Jaegermann, W. (2003)
Characterization of tellurium layers for back contact formation on close to technology treated CdTe surfaces.
In: Journal of Applied Physics, 94 (5)
Article

Kraft, D. ; Späth, B. ; Thißen, A. ; Klein, Andreas ; Jaegermann, W. (2003)
Chemical and electronic properties of CdTe/Sb2Te3/metal contacts for CdTe thin film solar cells studied by photoelectron spectroscopy.
In: Proceedings of the 3rd World Conference on Photovoltaic Energy Conversion
Book Section

Schulmeyer, T. ; Hunger, R. ; Jaegermann, W. ; Klein, Andreas ; Kniese, R. ; Powalla, M. (2003)
Interface formation between polycrstalline Cu(In,Ga)Se2 and II-VI-compounds.
In: Proceedings of the 3rd World Conference on Photovoltaic Energy Conversion
Book Section

Hunger, R. ; Schulmeyer, T. ; Klein, Andreas ; Jaegermann, W. ; Sakurai, K. ; Niki, S. ; Kniese, R. ; Powalla, M. (2003)
Removal of surface inversion of CuInSe2 by NH3 etching - a key function of the CBD process in CIGS/CdS junction formation?
In: Proceedings of the 3rd World Conference on Photovoltaic Energy Conversion
Book Section

Fritsche, J. ; Schulmeyer, T. ; Kraft, D. ; Thißen, A. ; Klein, Andreas ; Jaegermann, W. (2002)
Utilization of sputter depth profiling for the determination of band alignment at polycrystalline CdTe/CdS heterointerfaces.
In: Applied Physics Letters, 81 (12)
Article

Fritsche, R. ; Wisotzki, E. ; Thißen, A. ; Islam, A. B. M. O. ; Klein, Andreas ; Jaegermann, W. ; Rudolph, R. ; Tonti, D. ; Pettenkofer, C. (2002)
Preparation of a Si(111):GaSe van der Waals surface termination by selenization of a monolayer Ga on Si(111).
In: Surface Science, 515 (2-3)
Article

Albe, Karsten ; Klein, Andreas (2002)
Density-functional-theory calculations of electronic band structure of single-crystal and single-layer {WS}2.
In: Phys. Rev. B, 66 (7)
Article

Adelung, R. ; Ernst, F. ; Scott, A. ; Tabib-Azar, M. ; Kipp, L. ; Skibowski, M. ; Hollensteiner, S. ; Spiecker, E. ; Jäger, W. ; Gunst, S. ; Klein, Andreas ; Jaegermann, W. ; Zaporojtchenko, V. ; Faupel, F. (2002)
Self-Assembled Nanowire Networks by Deposition of Copper onto Layered-Crystal Surfaces.
In: Advanced Materials, 14 (15)
Article

Fritsche, J. ; Kraft, D. ; Thißen, A. ; Mayer, T. ; Klein, Andreas ; Jaegermann, W. (2002)
Band energy diagram of CdTe thin film solar cells.
In: Thin Solid Films, 403-404
Article

Fritsche, R. ; Wisotzki, E. ; Islam, A. B. M. O. ; Thissen, A. ; Klein, Andreas ; Jaegermann, W. ; Rudolph, R. ; Tonti, D. ; Pettenkofer, C. (2002)
Electronic passivation of Si(111) by Ga–Se half-sheet termination.
In: Applied Physics Letters, 80 (8)
Article

Klein, Andreas ; Tiefenbacher, S. ; Eyert, V. ; Pettenkofer, C. ; Jaegermann, W. (2001)
Electronic band structure of single-crystal and single-layer WS2: Influence of interlayer van der Waals interactions.
In: Physical Review B, 64 (20)
Article

Fritsche, J. ; Gunst, S. ; Golusda, E. ; Lejard, M. C. ; Thißen, A. ; Mayer, T. ; Klein, Andreas ; Wendt, R. ; Gegenwart, R. ; Bonnet, D. ; Jaegermann, W. (2001)
Surface analysis of CdTe thin film solar cells.
In: Thin Solid Films, 387 (1-2)
Article

Fritsche, J. ; Gunst, S. ; Thiβen, A. ; Gegenwart, R. ; Klein, Andreas ; Jaegermann, W. (2001)
CdTe Thin Film Solar Cells: The CdS/SnO2 Front Contact.
In: MRS Proceedings, 668
Article

Kraft, D. ; Thiβen, A. ; Campo, M. ; Beerbom, M. ; Mayer, T. ; Klein, Andreas ; Jaegermann, W. (2001)
Electronic Properties of Chemically Etched CdTe Thin Films: Role of Te for Back-Contact Formation.
In: MRS Proceedings, 668
Article

Fritsche, J. ; Kraft, D. ; Thißen, A. ; Mayer, T. ; Klein, Andreas ; Jaegermann, W. (2001)
Interface Engineering of Chalcogenide Semiconductors in Thin Film Solar Cells: CdTe as an Example.
In: MRS Proceedings, 668
Article

Fritsche, J. ; Thißen, A. ; Klein, Andreas ; Jaegermann, W. (2001)
Oriented growth and band alignment at the CdTe/CdS interface.
In: Thin Solid Films, 387 (1-2)
Article

Klein, Andreas (2001)
Role of Surfaces and Interfaces for the Electronic Properties of Conducting Oxides.
In: MRS Proceedings, 666
Article

Klein, Andreas ; Tiefenbacher, S. ; Eyert, V. ; Pettenkofer, C. ; Jaegermann, W. (2000)
Electronic properties of WS2 monolayer films.
In: Thin Solid Films, 380 (1-2)
doi: 10.1016/S0040-6090(00)01510-8
Article

Jaegermann, W. ; Rudolph, R. ; Klein, Andreas ; Pettenkofer, C. (2000)
Perspectives of the concept of van der Waals epitaxy: growth of lattice mismatched GaSe (0001) films on Si (111), Si (110), and Si (100).
In: Thin Solid Films, 380 (1-2)
Article

Beerbom, M. ; Henrion, O. ; Klein, Andreas ; Mayer, T. ; Jaegermann, W. (2000)
XPS analysis of wet chemical etching of GaAs(110) by Br2/H20: Comparison of emersion and model experiments.
In: Electrochimica Acta, 45
Article

Rudolph, R. ; Pettenkofer, C. ; Klein, Andreas ; Jaegermann, W. (2000)
Chemical passivation of Si(111) capped by a thin GaSe layer.
In: Applied Surface Science, 167 (1-2)
Article

Klein, Andreas ; Fritsche, J. ; Jaegermann, W. ; Schön, J. H. ; Kloc, C. ; Bucher, E. (2000)
Fermi level dependent defect formation at Cu(In,Ga)Se2 interfaces.
In: Applied Surface Science, 166 (1-4)
Article

Rudolph, R. ; Pettenkofer, C. ; Klein, Andreas ; Jaegermann, W. (2000)
Van der Waals-Xenotaxy: Growth of GaSe(0001) on low index silicon surfaces.
In: Applied Surface Science, 166 (1-4)
doi: 10.1016/S0169-4332(00)00464-5
Article

Klein, Andreas (2000)
Electronic properties of In2O3 surfaces.
In: Applied Physics Letters, 77 (13)
Article

Henrion, O. ; Klein, Andreas ; Jaegermann, W. (2000)
Water adsorption on UHV cleaved InP(110) surfaces.
In: Surface Science, 457 (1-2)
doi: 10.1016/S0039-6028(00)00417-9
Article

Löher, T. ; Tomm, Y. ; Pettenkofer, C. ; Klein, Andreas ; Jaegermann, W. (2000)
Structural dipoles at interfaces between polar II-VI semiconductors CdS and CdTe and non-polar layered transition metal dichalcogenide semiconductors MoTe2and WSe2.
In: Semiconductor Science and Technology, 15 (6)
Article

Gunst, S. ; Klein, Andreas ; Jaegermann, W. ; Tomm, Y. ; Crawack, H. J. ; Jungblut, H. (2000)
Intercalation and deintercalation of transition metal dichalcogenides: Nanostructuring of intercalated phases by scanning probe microscopy.
In: Ionics, 6 (3-4)
doi: 10.1007/BF02374064
Article

Rudolph, R. ; Klein, Andreas ; Tomm, Y. ; Pettenkofer, C. ; Jaegermann, W. (2000)
Van der Waals-Xenotaxy: Oriented growth of hexagonal GaSe(0001) on rectangular GaAs(110).
In: Applied Physics Letters, 76 (9)
doi: 10.1063/1.125951
Article

Schönhoff, Ulrich ; Klein, Andreas ; Nordmann, Rainer (2000)
Attitude control of the airborne telescope SOFIA: µ-synthesis for a large flexible structure.
Conference or Workshop Item

Jaegermann, W. ; Klein, Andreas ; Pettenkofer, C. (2000)
Electronic properties of van der Waals-epitaxy films and interfaces.
In: Physics and Chemistry of Materials with Low-Dimensional Structures
Book Section

Klein, Andreas ; Jaegermann, W. (1999)
Fermi level dependent defect formation in Cu-chalcopyrite semiconductors.
In: Applied Physics Letters, 74
Article

Bauknecht, A. ; Bliske, U. ; Kampschulte, T. ; Albert, J. ; Sehnert, H. ; Lux-Steiner, M. ; Klein, Andreas ; Jaegermann, W. (1999)
Band offset at the ZnSe/CuGaSe2(oo1) heterointerface.
In: Applied Physics Letters, 74
Article

Mondal, Pia ; Klein, Andreas ; Jaegermann, W. ; Hahn, Horst (1999)
Enhanced grain boundary conductivity in nanocrystalline Y2O3-stabilized zirconia.
In: Solid state ionics, 18
Article

Yu, S.-W. ; Lischke, T. ; David, R. ; Müller, N. ; Heinzmann, U. ; Pettenkofer, C. ; Klein, Andreas ; Perlov, A. Y. ; Krasovskii, E. E. (1999)
Spin resolved photoemission spectroscopy on WSe2.
In: Journal of Electron Spectroscopy and Related Phenomena, 101-103
Article

Lang, O. ; Pettenkofer, C. ; Sanchez-Royo, J. F. ; Segura, A. ; Klein, Andreas ; Jaegermann, W. (1999)
Thin film growth and band lineup of In2O3 on the layered semiconductor InSe.
In: Journal of applied physics, 86
Article

Mondal, P. ; Hahn, H. ; Klein, Andreas ; Jaegermann, W. (1999)
Enhanced specific grain boundary conductivity in nanocrystalline Y2O3-stabilized zirconia.
In: Solid State Ionics, 118 (3-4)
Article

Yu, S.-W. ; Lischke, T. ; Müller, N. ; Heinzmann, U. ; Pettenkofer, C. ; Klein, Andreas ; Blaha, P. ; Braun, J. (1999)
Spin resolved photoemission spectroscopy using circularly polarized radiation from InSe(0001).
In: Journal of Physics: Condensed Matter, 11 (35)
Article

Klein, Andreas ; Tomm, Y. ; Schlaf, R. ; Pettenkofer, C. ; Jaegermann, W. ; Lux-Steiner, M. ; Bucher, E. (1998)
Photovoltaic properties of WSe2 single crystals studied by photoelectron spectroscopy.
In: Solar Energy Materials and Solar Cells, 51 (2)
Article

Klein, Andreas ; Lang, O. ; Schlaf, R. ; Pettenkofer, C. ; Jaegermann, W. (1998)
Electronically decoupled InSe films prepared by Van der Waals epitaxy: transition from localized two-dimensional to delocalized states.
In: Physical Review Letters, 80 (2)
doi: 10.1103/PhysRevLett.80.361
Article

Klein, Andreas ; Löher, T. ; Tomm, Y. ; Pettenkofer, C. ; Jaegermann, W. (1997)
Band line-up between CdS and UHV-cleaved CuInS2 single crystals.
In: Applied Physics Letters, 70 (10)
doi: 10.1063/1.118517
Article

Schlaf, R. ; Löher, T. ; Klein, Andreas ; Pettenkofer, C. ; Jaegermann, W. (1997)
Band line-up of van der Waals epitaxy interfaces.
In: MRS Proceedings, 448
Article

Löher, T. ; Klein, Andreas ; Schaar-Gabriel, E. ; Rudolph, R. ; Tomm, Y. ; Giersig, M. ; Pettenkofer, C. ; Jaegermann, W. (1997)
Van der Waals epitaxy of II-VI semiconductors on layered chalcogenide (0001) substrates: Towards buffer layers for lattice mismatched systems?
In: MRS Proceedings, 441
Article

Löher, T. ; Klein, Andreas ; Pettenkofer, C. ; Jaegermann, W. (1997)
Partial density of states in the CuInSe2 valence bands.
In: Journal of Applied Physics, 81 (12)
Article

Lang, O. ; Klein, Andreas ; Pettenkofer, C. ; Jaegermann, W. ; Chevy, A. (1996)
Band lineup of lattice mismatched InSe/GaSe quantum well structures prepared by van der Waals epitaxy: Absence of interfacial dipoles.
In: Journal of Applied Physics, 80 (7)
Article

Klein, Andreas ; Löher, T. ; Pettenkofer, C. ; Jaegermann, W. (1996)
Chemical interaction of Na with cleaved (011) surfaces of CuInSe2.
In: Journal of Applied Physics, 80 (9)
Article

Löher, T. ; Tomm, Y. ; Klein, Andreas ; Su, D. ; Pettenkofer, C. ; Jaegermann, W. (1996)
Highly oriented layers of the three-dimensional semiconductor CdTe on the two-dimensional layered semiconductors MoTe2 and WSe2.
In: Journal of Applied Physics, 80 (10)
Article

Henrion, O. ; Löher, T. ; Klein, Andreas ; Pettenkofer, C. ; Jaegermann, W. (1996)
Low temperature adsorption of water on cleaved GaAs(110) surfaces.
In: Surface Science, 366 (1)
Article

Lang, O. ; Klein, Andreas ; Schlaf, R. ; Löher, T. ; Pettenkofer, C. ; Jaegermann, W. ; Chevy, A. (1995)
InSe/GaSe heterointerfaces prepared by Van der Waals epitaxy.
In: Journal of Crystal Growth, 146 (1-4)
Article

Klein, Andreas ; Pettenkofer, C. ; Jaegermann, W. ; Lux-Steiner, M. ; Bucher, E. (1994)
A photoemission study of barrier and transport properties of the interfaces of Au and Cu with WSe2(0001) surfaces.
In: Surface Science, 321 (1-2)
Article

Schlaf, R. ; Klein, Andreas ; Pettenkofer, C. ; Jaegermann, W. (1993)
Laterally inhomogeneous surface-potential distribution and photovoltage at clustered In/WSe2(0001) interfaces.
In: Physical Review B, 48 (19)
Article

Klein, Andreas ; Lehmann, J. ; Pettenkofer, C. ; Jaegermann, W. ; Lux-Steiner, M. ; Bucher, E. (1993)
Schottky barriers on layered semiconductors: A comparison between van der Waals and non-van der Waals faces.
In: Applied Surface Science, 70-71
Article

Mayer, T. ; Klein, Andreas ; Lang, O. ; Pettenkofer, C. ; Jaegermann, W. (1992)
H2O adsorption on the layered chalcogenide semiconductors WSe2, InSe and GaSe.
In: Surface Science, 269-270
Article

Klein, Andreas ; Pettenkofer, C. ; Jaegermann, W. ; Chassé, T. ; Horn, K. ; Lux-Steiner, M. C. ; Bucher, E. (1992)
Interface reaction of Pt on p-WSe2(0001) surfaces.
In: Surface Science, 264 (1-2)
Article