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Short infrared wavelength quantum cascade detectors based on m-plane ZnO/ZnMgO quantum wells

Jollivet, A. ; Hinkov, B. ; Pirotta, S. ; Hoang, H. ; Derelle, S. ; Jaeck, J. ; Tchernycheva, M. ; Colombelli, R. ; Bousseksou, A. ; Hugues, M. ; Le Biavan, N. ; Tamayo-Arriola, J. ; Montes Bajo, M. ; Rigutti, L. ; Hierro, A. ; Strasser, G. ; Chauveau, J.-M. ; Julien, F. H.

Applied physics letters, 2018-12, Vol.113 (25), p.251104-1 - 251104-5 [Periódico revisado por pares]

Melville: American Institute of Physics

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Título:
Short infrared wavelength quantum cascade detectors based on m-plane ZnO/ZnMgO quantum wells
Autor: Jollivet, A. ; Hinkov, B. ; Pirotta, S. ; Hoang, H. ; Derelle, S. ; Jaeck, J. ; Tchernycheva, M. ; Colombelli, R. ; Bousseksou, A. ; Hugues, M. ; Le Biavan, N. ; Tamayo-Arriola, J. ; Montes Bajo, M. ; Rigutti, L. ; Hierro, A. ; Strasser, G. ; Chauveau, J.-M. ; Julien, F. H.
Assuntos: Absorption ; Applied physics ; Brewster angle ; Detectors ; Engineering Sciences ; Epitaxial growth ; Incidence angle ; Infrared detectors ; Leakage current ; Mesas ; Molecular beam epitaxy ; Optics ; Photoelectric effect ; Photoelectric emission ; Photonic ; Quantum wells ; Substrates ; Zinc oxide
É parte de: Applied physics letters, 2018-12, Vol.113 (25), p.251104-1 - 251104-5
Descrição: This paper reports on the demonstration of quantum cascade detectors (QCDs) based on ZnO/ZnMgO quantum wells (QWs) grown by molecular beam epitaxy on an m-plane ZnO substrate. The TM-polarized intersubband absorption is peaked at a 3 μm wavelength. The sample has been processed in the form of square mesas with sizes ranging from 10 × 10 μm2 up to 100 × 100 μm2. The I-V characteristics reveal that 86% of the 260 devices are operational and that the surface leakage current is negligible at room temperature, which is not the case at 77 K. The photocurrent spectroscopy of 100 × 100 μm2 QCDs reveals a photocurrent resonance at a 2.8 μm wavelength, i.e., slightly blue-shifted with respect to the intersubband absorption peak. The photocurrent persists up to room temperature. The calibrated peak responsivity amounts to 0.15 mA/W under irradiation at Brewster's angle of incidence. This value allows us to estimate the transfer efficiency (1.15%) of the photoexcited electrons into the active QW of the next period.
Editor: Melville: American Institute of Physics
Idioma: Inglês

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Short infrared wavelength quantum cascade detectors based on m-plane ZnO/ZnMgO quantum wells

Jollivet, A. ; Hinkov, B. ; Pirotta, S. ; Hoang, H. ; Derelle, S. ; Jaeck, J. ; Tchernycheva, M. ; Colombelli, R. ; Bousseksou, A. ; Hugues, M. ; Le Biavan, N. ; Tamayo-Arriola, J. ; Montes Bajo, M. ; Rigutti, L. ; Hierro, A. ; Strasser, G. ; Chauveau, J.-M. ; Julien, F. H.

Melville: American Institute of Physics

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