Afiliat la Universitatea Tehnică, Darmstadt

2020 - 2

The use of metal oxide semiconductors for THz spectroscopy of biological applications

Hartnagel Hans Ludwig , Sirkeli Vadim

IFMBE Proceedings. 4th International Conference on Nanotechnologies and Biomedical Engineering

Ediția 4, Vol.77. 2020. Switzerland. Springer Nature Switzerland AG. 213-217.

Disponibil online 2 November, 2020

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Recent progress in GaN-based devices for terahertz technology

Sirkeli Vadim , Tighineanu Ion , Hartnagel Hans Ludwig

IFMBE Proceedings. 4th International Conference on Nanotechnologies and Biomedical Engineering

Ediția 4, Vol.77. 2020. Switzerland. Springer Nature Switzerland AG. 231-235.

Disponibil online 31 October, 2020

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2019 - 2

ZnO-based terahertz quantum cascade lasers

Sirkeli Vadim , Hartnagel Hans Ludwig

Opto-Electronics Review

Nr. 2(27) / 2019 / ISSN 1230-3402

Disponibil online 27 May, 2019

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Negative differential resistance in ZnO-based resonant tunneling diodes

Sirkeli Vadim , Vatavu Sergiu , Yilmazoglu Oktay , Preu Sascha , Hartnagel Hans Ludwig

International Conference on Infrared, Millimeter, and Terahertz Waves IRMMW-THz 2019

Ediția 44. 2019. Washington. IEEE Computer Society. 0-0.

Disponibil online 15 March, 2023

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2018 - 3

Enhanced Responsivity of ZnSe-Based Metal–Semiconductor–Metal Near-Ultraviolet Photodetector via Impact Ionization

Sirkeli Vadim , Yilmazoglu Oktay , Hajo Ahid S. , Nedeoglo Natalia , Nedeoglo Dumitru , Preu Sascha , Kuppers Franko , Hartnagel Hans Ludwig

Physica Status Solidi - Rapid Research Letters

Vol. 12, / 2018 / ISSN 1862-6254

Disponibil online 11 June, 2021

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2.08 THz and 4.96 THz Room-Temperature Quantum Cascade Lasers Based on Non-Polar M-Plane ZnMgO/ZnO

Sirkeli Vadim , Yilmazoglu Oktay , Kuppers Franko , Hartnagel Hans Ludwig

International Conference on Infrared, Millimeter, and Terahertz Waves IRMMW-THz

Ediția a 43-a. 2018. Washington, D.C., Statele Unite. IEEE Computer Society. 0-0.

Disponibil online 10 June, 2021

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Quantum electron transport in non-polar ZnMgO/ZnO structures

Sirkeli Vadim , Vatavu Sergiu , Yilmazoglu Oktay , Kuppers Franko , Hartnagel Hans Ludwig

Materials Science and Condensed Matter Physics

Ediția 9. 2018. Chișinău, Republica Moldova. Institutul de Fizică Aplicată. 329-329.

Disponibil online 15 February, 2019

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2017 - 7

Room-Temperature THz Generation for II-VI Semiconductor Quantum Structures

Sirkeli Vadim , Yilmazoglu Oktay , Kuppers Franko , Hartnagel Hans Ludwig

Multidisciplinarity in Modern Science for the Benefit of Society

2017. Chișinău, Republica Moldova. Inst. de Fizică Aplicată. 35-36.

Disponibil online 16 March, 2018

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Efficiency enhancement of InGaN/GaN light-emitting diodes with pin-doped GaN quantum barrier

Sirkeli Vadim , Yilmazoglu Oktay , Al-Daffaie S. , Oprea Ion , Ong Duu Sheng , Kuppers Franko , Hartnagel Hans Ludwig

Journal of Physics D: Applied Physics

Vol. 50, / 2017 / ISSN 0022-3727 / ISSNe 1361-6463

Disponibil online 21 February, 2023

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Resonant Tunneling and Quantum Cascading for Optimum Room-Temperature Generation of THz Signals

Sirkeli Vadim , Yilmazoglu Oktay , Ong Duu Sheng , Preu Sascha , Kuppers Franko , Hartnagel Hans Ludwig

IEEE Transactions on Electron Devices

Nr. 8(64) / 2017 / ISSN / ISSNe 0018-9383

Disponibil online 6 September, 2018

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Room-temperature terahertz emission from ZnSe-based quantum cascade structures: A simulation study

Sirkeli Vadim , Yilmazoglu Oktay , Kuppers Franko , Hartnagel Hans Ludwig

Physica Status Solidi - Rapid Research Letters

Vol. 11, / 2017 / ISSN 1862-6254

Disponibil online 22 February, 2023

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1.33 THz room-temperature quantum cascade lasers based on ZnMgSe/ZnSe

Sirkeli Vadim , Yilmazoglu Oktay , Al-Daffaie S. , Preu Sascha , Kuppers Franko , Hartnagel Hans Ludwig

International Conference on Infrared, Millimeter, and Terahertz Waves IRMMW-THz

Ediția a 42-a. 2017. Washington, D.C., Statele Unite. IEEE Computer Society. 0-0.

Disponibil online 22 February, 2023

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Resonant Tunneling and Quantum Cascading for Optimum Room-Temperature Generation of THz Signals

Sirkeli Vadim , Yilmazoglu Oktay , Ong Duusheng , Preu Sascha , Kuppers Franko , Hartnagel Hans Ludwig

Indian Journal of Physics

Nr. 8(91) / 2017 / ISSN 0973-1458

Disponibil online 15 February, 2018

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Resonant tunneling transport in ZnxBe1-xSe/ZnSe/ZnyBe1-ySe asymmetric quantum structures

Sirkeli Vadim , Yilmazoglu Oktay , Al-Daffaie S. , Oprea Ion , Ong Duu Sheng , Kuppers Franko , Hartnagel Hans Ludwig

Proceedings of SPIE - The International Society for Optical Engineering

Ediția 8, Vol.10248. 2017. Bellingham, Washington USA. SPIE. 1-8.

Disponibil online 22 February, 2023

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2015 - 2

Effect of p-NiO and n-ZnSe interlayers on the efficiency of p-GaN/n-ZnO light-emitting diode structures

Sirkeli Vadim , Yilmazoglu Oktay , Kuppers Franko , Hartnagel Hans Ludwig

Semiconductor Science and Technology

Vol. 30, / 2015 / ISSN 0268-1242

Disponibil online 17 May, 2023

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Effect of p-NiO interlayer on internal quantum efficiency of p-GaN/n-ZnO light-emitting devices

Sirkeli Vadim , Yilmazoglu Oktay , Kuppers Franko , Hartnagel Hans Ludwig

Journal of Nanoelectronics and Optoelectronics

Vol. 9, / 2015 / ISSN 1555-130X

Disponibil online 17 May, 2023

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2013 - 1

Photoluminescence study of GaN thin films grown by MOCVD

Sirkeli Vadim , Biethan Jens-Peter , Cho Eunjung , Considine Laurence , Yilmazoglu Oktay , Pavlidis Dimitris , Hartnagel Hans Ludwig

Ştiinţă, educaţie, cultură

2013. Comrat. Universitatea de Stat din Comrat. 121-122.

Disponibil online 15 February, 2023

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