2024

Sirkeli, VP ; Yilmazoglu, O. ; Hajo, AS ; Nedeoglo, ND ; Nedeoglo, DD ; Küppers, F. ; Hartnagel, HL (2024)
High Performance ZnSe-Based Metal--Semiconductor--Metal Ultraviolet Photodetectors with Different Schottky Contacts.
In: Physics of the Solid State, 66 (8)
doi: 10.1134/S1063783424601164
Artikel, Bibliographie

2020

Hajo, A. S. ; Yilmazoglu, O. ; Küppers, F. ; Kusserow, T. (2020)
Integration and characterisation of Schottky diodes with a pre-amplifier for THz applications.
45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). virtual conference (08.11.2020-13.11.2020)
doi: 10.1109/IRMMW-THz46771.2020.9370830
Konferenzveröffentlichung, Bibliographie

Hajo, A. S. ; Yilmazoglu, O. ; Dadgar, A. ; Küppers, F. ; Kusserow, T. (2020)
Fabrication and characterization of high power Gallium Nitride based terahertz Gunn diodes.
45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). virtual conference (08.11.2020-13.11.2020)
doi: 10.1109/IRMMW-THz46771.2020.9370977
Konferenzveröffentlichung, Bibliographie

Sirkeli, V. P. ; Hartnagel, H. L. ; Yilmazoglu, O. ; Preu, S.
Hrsg.: Tiginyanu, Ion ; Sontea, Victor ; Railean, Serghei (2020)
ZnO-Based Quantum Structures for Terahertz Sources.
4th International Conference on Nanotechnologies and Biomedical Engineering. Chisinau, Republic of Moldova (18.09.2019-21.09.2019)
Konferenzveröffentlichung, Bibliographie

2019

Hajo, A. S. ; Yilmazoglu, O. ; Lu, S. ; Küppers, F. ; Kusserow, T. (2019)
Comparison of Metallic NW and Evaporated Contact for THz Detector Modules Based on an InGaAs Schottky diode.
44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2019). Paris, France (01.09.2020-03.09.2020)
doi: 10.1109/IRMMW-THz.2019.8874213
Konferenzveröffentlichung, Bibliographie

Hajo, A. S. ; Yilmazoglu, O. ; Samodi, B. ; Dadgar, A. ; Küppers, F. ; Kusserow, T. (2019)
A new approach to achieve Gunn effect for GaN based THz sources with high power.
44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2019). Paris, France (01.09.2020-03.09.2020)
doi: 10.1109/IRMMW-THz.2019.8873720
Konferenzveröffentlichung, Bibliographie

Jumaah, A. ; Al-Daffaie, S. ; Yilmazoglu, O. ; Küppers, F. ; Kusserow, T. (2019)
Interdigital Multilayer-Graphene Nanoelectrodes for Continuous Wave Terahertz photomixers.
2019 European Microwave Conference in Central Europe (EuMCE). Prague, Czech RepublicPrague, Czech Republic (13.05.2019-15.05.2019)
Konferenzveröffentlichung, Bibliographie

2018

Sirkeli, V. P. ; Yilmazoglu, O. ; Küppers, F. ; Hartnagel, H. L. (2018)
2.08 THz and 4.96 THz Room-Temperature Quantum Cascade Lasers Based on Non-Polar M-Plane ZnMgO/ZnO.
2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
doi: 10.1109/IRMMW-THz.2018.8510344
Konferenzveröffentlichung, Bibliographie

Al-Daffaie, S. ; Yilmazoglu, O. ; Jumaah, A. ; Küppers, F. (2018)
First Demonstration of Continuous Wave Terahertz Radiation from Semi-Insulating GaAs Photomixer with Nanowire.
2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
doi: 10.1109/IRMMW-THz.2018.8510294
Konferenzveröffentlichung, Bibliographie

Jumaah, A. ; Al-Daffaie, S. ; Yilmazoglu, O. ; Küppers, F. (2018)
Graphene Enhanced 2-D Nanoelectrode for Continuous Wave Terahertz Photomixers.
2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
doi: 10.1109/IRMMW-THz.2018.8510179
Konferenzveröffentlichung, Bibliographie

Hajo, A. S. ; Yilmazoglu, O. ; Küppers, F. (2018)
New InGaAs THz Schottky Detectors with Nanowire Contact for Zero-Bias Operation.
2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
doi: 10.1109/IRMMW-THz.2018.8510152
Konferenzveröffentlichung, Bibliographie

Hajo, A. S. ; Yilmazoglu, O. ; Küppers, F. ; Dadgar, A. (2018)
Reliability Improvement of High-Power THz GaN Gunn Sources for Active Imaging Systems.
2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
doi: 10.1109/IRMMW-THz.2018.8510363
Konferenzveröffentlichung, Bibliographie

Yilmazoglu, O. ; Al-Daffaie, S. ; Küppers, F. ; Neo, Y. ; Mimura, H. (2018)
High-frequency photocathode based on CNT-yarn emitter and GaAs photoswitch.
31st International Vacuum Nanoelectronics Conference (IVNC). Kyoto Research ParkKyoto, Japan
Konferenzveröffentlichung, Bibliographie

Küppers, F. ; Sirkeli, V. P. ; Yilmazoglu, O. ; Hajo, A. S. ; Nedeoglo, N. D. ; Nedeoglo, D. D. ; Preu, S. ; Hartnagel, H. L. (2018)
High-performance near-ultraviolet ZnSe-based photodetectors with Cr/Au and Ni/Au contacts.
9th MSCMP Conference Moldova. Chisinau, Republic of Moldova (25.09.2018-28.09.2018)
Konferenzveröffentlichung, Bibliographie

Hartnagel, H. L. ; Sirkeli, V. P. ; Yilmazoglu, O. ; Hajo, A. S. ; Nedeoglo, N. D. ; Nedeoglo, D. D. ; Preu, S. ; Küppers, F. (2018)
Near-ultraviolet avalanche photodetectors based on bulk ZnSe.
40th WOCSDICE Conference. Bucharest, Romania
Konferenzveröffentlichung, Bibliographie

Steblova, O. ; Evtukh, A. ; Yilmazoglu, O. ; Yukhymchuk, V. ; Hartnagel, H. ; Mimura, H. (2018)
Photofield emission from SiGe nanoislands under green light illumination.
In: Opto-Electronics Review, 26 (1)
doi: 10.1016/j.opelre.2017.11.003
Artikel, Bibliographie

2017

Yilmazoglu, O. ; Hajo, A. S. ; Küppers, F. (2017)
Cabon nanotube yarns as miniature black-body radiator for broadband terahertz emission.
2017 42nd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
doi: 10.1109/IRMMW-THz.2017.8066966
Konferenzveröffentlichung, Bibliographie

Hajo, A. S. ; Yilmazoglu, O. ; Küppers, F. (2017)
Vertical nanowire contacted THz Schottky detectors based on gallium arsenide for zero-bias operation.
2017 42nd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
doi: 10.1109/IRMMW-THz.2017.8067022
Konferenzveröffentlichung, Bibliographie

2016

Sirkeli, V. P. ; Yilmazoglu, O. ; Al-Daffaie, S. ; Oprea, I. ; Ong, D. S. ; Kueppers, F. ; Hartnagel, H. L. (2016)
Effect of Si-Doping of the GaN Barrier on the Internal Quantum Efficiency of InGaN/GaN Light-Emitting Diodes.
8th International Conference on Materials Science and Condensed Matter Physics / MSCMP-2016. Chisinau, Moldova (12.09.2016-16.09.2016)
Konferenzveröffentlichung, Bibliographie

Haidar, M. T. ; Al-Daffaie, S. ; Yilmazoglu, O. ; Hajo, A. S. ; Küppers, F. (2016)
CW THz photomixers at 850 nm and 1550 nm using dielectrophoretic alignment of Ag-nanowire.
2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz).
Konferenzveröffentlichung, Bibliographie

Hajo, A. S. ; Al-Daffaie, S. ; Yilmazoglu, O. ; Haidar, M. T. ; Küppers, F. (2016)
Zero-bias Schottky diode based THz detectors at room temperature using metallic nanowire.
2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz).
Konferenzveröffentlichung, Bibliographie

Yilmazoglu, O. ; Yadav, S. ; Cicek, D. ; Schneider, J. J. (2016)
A nano-microstructured artificial-hair-cell-type sensor based on topologically graded 3D carbon nanotube bundles.
In: Nanotechnology, 27 (36)
Artikel, Bibliographie

2015

Yadav, S. ; Cicek, D. ; Schneider, J. ; Yilmazoglu, O. (2015)
Federsensorelement.
Norm, Patent, Standard, Bibliographie

Yilmazoglu, O. ; Al-Daffaie, S. ; Küppers, F. ; Hartnagel, H. L. (2015)
New photocathodes for THz vacuum microelectronic devices.
Energy, Materials, Nanotechnology (EMN) Meeting on Vacuum Electronics. Las Vegas, NV, USA (21.11.2015-24.11.2015)
Konferenzveröffentlichung, Bibliographie

Sirkeli, V. P. ; Yilmazoglu, O. ; Küppers, F. ; Hartnagel, H. L. (2015)
Enhanced efficiency of p-GaN/n-ZnO light-emitting diodes by using NiO and ZnSe interlayers.
3rd International Conference on Nanotechnologies and Biomedical Engineering ICNBME. Chisinau, Republic of Moldova
Konferenzveröffentlichung, Bibliographie

Al-Daffaie, S. ; Yilmazoglu, O. ; Küppers, F. ; Hartnagel, H. (2015)
Fully integrated vertical nanocontact photomixer for continuous-wave terahertz generation.
40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz).
Konferenzveröffentlichung, Bibliographie

Yilmazoglu, O. ; Al-Daffaie, S. ; Küppers, F. ; Hartnagel, H. L. ; Neo, Y. ; Mimura, H. (2015)
Ultrafast photocathodes based on n-doped graphene emitters on compound semiconductor photoswitches.
28th International Vacuum Nanoelectronics Conference (IVNC).
Konferenzveröffentlichung, Bibliographie

Hartnagel, H. L. ; Al-Daffaie, S. ; Yilmazoglu, O. (2015)
Plasmonics and Graphene for THz Generation by Optical Mixing.
The 4th Russia-Japan-USA Symposium on Fundamental & Applied Problems of Terahertz Devices & Technologies, At IMT, ISSP. Chernogolovka, Russia
Konferenzveröffentlichung, Bibliographie

Al-Daffaie, S. ; Yilmazoglu, O. ; Küppers, F. ; Hartnagel, H. L. (2015)
1-D and 2-D Nanocontacts for Reliable and Efficient Terahertz Photomixers.
In: IEEE Transactions on Terahertz Science and Technology, 5 (3)
Artikel, Bibliographie

Hartnagel, H. L. ; Al-Daffaie, S. ; Yilmazoglu, O. (2015)
Plasmonics in semiconductors and in Ag submicron wires and graphene.
In: Lithuanian Journal of Physics, 55 (4)
Artikel, Bibliographie

Hartnagel, H. L. ; Al-Daffaie, S. ; Yilmazoglu, O. (2015)
Plasmonics in semiconductors and in Ag submicron wires and graphene.
In: Lithuanian Journal of Physics, 55 (4)
Artikel, Bibliographie

2014

Yilmazoglu, O. ; Al-Daffaie, S. ; Küppers, F. ; Hartnagel, H. L. ; Neo, Y. ; Mimura, H. (2014)
Photocathodes based on graphene nanoplatelet emitters on semi-insulating GaAs photoswitch.
Vacuum Nanoelectronics Conference (IVNC), 2014 27th International.
Konferenzveröffentlichung, Bibliographie

2006

Seo, S. ; Zhao, G. Y. ; Pavlidis, Dimitris ; Karaduman, T. ; Yilmazoglu, O. (2006)
Fabrication and DC Characterization of AlxGal-xN/GaN Superlattice Diodes for Millimeter Wave Generation.
Konferenzveröffentlichung, Bibliographie

Evtukh, A. ; Litovchenko, V. ; Semenenko, M. ; Yilmazoglu, O. ; Mutamba, K. ; Hartnagel, H. ; Pavlidis, D. (2006)
Formation of conducting nanochannels in diamond-like carbon films.
In: Semiconductor Science and Technology, 21
Artikel, Bibliographie

Mutamba, K. ; Sydlo, C. ; Yilmazoglu, O. ; Neculoiu, D. ; Konstantinidis, G. ; Georgakilas, A. ; Chatzopoulos, Z. ; Müller, A. ; Hartnagel, Hans L. (2006)
A new compound semiconductor technology for advanced RF MEMS applications.
Konferenzveröffentlichung, Bibliographie

2005

Litovchenko, V. ; Evtukh, A. ; Yilmazoglu, O. ; Mutamba, K. ; Hartnagel, H. L. ; Pavlidis, D. (2005)
Gunn effect in field-emission phenomena.
In: Journal of Applied Physics, 97
Artikel, Bibliographie

Mutamba, K. ; Yilmazoglu, O. ; Sydlo, C. ; Pavlidis, D. ; Mir, S. ; Hubbard, S. ; Zhao, G. ; Daumiller, I. (2005)
Technology and characteristics of GaN-based diodes for high-field operation.
Konferenzveröffentlichung, Bibliographie