Zakutayev, A. and Tate, J. and Platt, H. A. S. and Keszler, D. A. and Hein, C. and Mayer, T. and Klein, Andreas and Jaegermann, W. (2010):
Electronic properties of BaCuChF (Ch = S, Se, Te) surfaces and BaCuSeF/ZnPc interfaces.
In: Journal of Applied Physics, 107 (10), pp. 103713-1, ISSN 00218979,
[Online-Edition: http://dx.doi.org/10.1063/1.3380594],
[Article]
Abstract
BaCuChF (Ch = S,Se,Te) surfaces and BaCuSeF interfaces with zinc phthalocyanine (ZnPc) were studied by photoelectron spectroscopy. BaCuChF compounds oxidize when exposed to ambient atmosphere. Se capping layers were studied as a means to produce representative surfaces for photoelectron spectroscopic measurements. Decapped BaCuSeF surfaces remain O-free and C-free when the Se layer is evaporated but they become F-deficient. The resulting surfaces have work functions of 4.85 eV and Fermi levels located 0.25 eV above the valence band maximum. In situ stepwise deposition of ZnPc on a BaCuSeF film surface produced a chemically inert interface with a hole-injection barrier of 0.11 eV.
| Item Type: | Article |
|---|---|
| Erschienen: | 2010 |
| Creators: | Zakutayev, A. and Tate, J. and Platt, H. A. S. and Keszler, D. A. and Hein, C. and Mayer, T. and Klein, Andreas and Jaegermann, W. |
| Title: | Electronic properties of BaCuChF (Ch = S, Se, Te) surfaces and BaCuSeF/ZnPc interfaces |
| Language: | English |
| Abstract: | BaCuChF (Ch = S,Se,Te) surfaces and BaCuSeF interfaces with zinc phthalocyanine (ZnPc) were studied by photoelectron spectroscopy. BaCuChF compounds oxidize when exposed to ambient atmosphere. Se capping layers were studied as a means to produce representative surfaces for photoelectron spectroscopic measurements. Decapped BaCuSeF surfaces remain O-free and C-free when the Se layer is evaporated but they become F-deficient. The resulting surfaces have work functions of 4.85 eV and Fermi levels located 0.25 eV above the valence band maximum. In situ stepwise deposition of ZnPc on a BaCuSeF film surface produced a chemically inert interface with a hole-injection barrier of 0.11 eV. |
| Journal or Publication Title: | Journal of Applied Physics |
| Volume: | 107 |
| Number: | 10 |
| Uncontrolled Keywords: | barium compounds, chalcogenide glasses, copper compounds, Fermi level, interface states, organic semiconductors, organometallic compounds, photoelectron spectra, selenium compounds, semiconductor junctions, sulphur compounds, surface states, tellurium compounds, valence bands, work function, zinc compounds |
| Divisions: | 11 Department of Materials and Earth Sciences 11 Department of Materials and Earth Sciences > Material Science 11 Department of Materials and Earth Sciences > Material Science > Surface Science Zentrale Einrichtungen DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > D - Component properties DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > D - Component properties > Subproject D3: Function and fatigue of oxide electrodes in organic light emitting diodes DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > D - Component properties > Subproject D5: Processing and characterization of Li-Ion Thin film batteries DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres DFG-Collaborative Research Centres (incl. Transregio) |
| Date Deposited: | 16 Sep 2011 12:26 |
| Official URL: | http://dx.doi.org/10.1063/1.3380594 |
| Additional Information: | SFB 595 Cooperation D3, D5 |
| Identification Number: | doi:10.1063/1.3380594 |
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