2017

Sirkeli, V. P. ; Yilmazoglu, Oktay ; Ong, D. S. ; Preu, Sascha ; Küppers, F. ; Hartnagel, Hans L. (2017)
Resonant Tunneling and Quantum Cascading for Optimum Room-Temperature Generation of THz Signals.
In: IEEE Transactions on Electron Devices, 64 (8)
doi: 10.1109/TED.2017.2718541
Artikel, 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

2013

Hartnagel, Hans ; Ong, D. S. ; Al-Daffaie, Shihab (2013)
Proposal of a THz signal generator by ballistic electron resonance device based on graphene.
In: Quantum Electronics, 33
Artikel, Bibliographie

2007

Ong, D. S. ; Hartnagel, Hans L. (2007)
Generation of THz signals based on quasi-ballistic electron reflections in double-heterojunction structures.
In: Semiconductor science and technology, 22
Artikel, Bibliographie

Ong, D. S. ; Hartnagel, Hans L. (2007)
Novel concept for THz signals generations in heterostructures.
In: Physica status solidi / Rapid research letters, 1
Artikel, Bibliographie

Ong, D. S. ; Hartnagel, Hans L. (2007)
A new concept for THz frequency multipliers.
Konferenzveröffentlichung, Bibliographie