Improving the performance of a far-infrared quantum-ring-based photodetector utilizing asymmetric multi-barrier resonant tunneling

•Quantum ring inter-subband photodetectors (QRIP) with reduced dark current.•Asymmetric multi-barrier resonant tunneling (AMBRT) in absorption region layers.•Higher specific detectivity in the order of ∼1011cmHz1/2/W at 100K. In this paper, a novel structure for quantum ring inter-subband photodetec...

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Veröffentlicht in:	Infrared physics & technology 2014-01, Vol.62, p.81-85
Hauptverfasser:	Karimi, M., Abedi, K., Zavvari, M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Aluminum gallium arsenides Asymmetry Dark current Detectivity Infrared Photocurrent Photodetectors Photoelectric effect Quantum ring inter-subband photodetector Resonant tunneling Resonant tunnelling barrier
Online-Zugang:	Volltext
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