SEMI OpenIR  > 中科院半导体材料科学重点实验室
Quantum cascade infrared photodetectors
Liu, Junqi; Zhai, Shenqiang; Kong, Ning; Li, Lu; Liu, Fengqi; Wang, Lijun; Wang, Zhanguo; Liu, J.(
Source PublicationHongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
AbstractSemiconductor-based mid- and far-infrared detectors have wide prospects for applications in imaging, sensing, security and defense field. At present, the quantum well infrared photodetector(QWIP) is one of the main technology in this field. On the other hand, the performance of the conventional QWIPs is limited by the bigger dark current and the lower operation temperature. Quantum cascade detector(QCD) is a new type of photovoltaic QWIP. Its operation principle is based on intersubband transitions in quantum wells embedded in an asymmetric conduction band potential, which enables the excited electrons to transport in the direction of potential drop without bias voltage. Since the invention, this kind of device has attracted much attention and experienced a rapid development. The latest results of institute of semiconductors of CAS about the research on quantum cascade photovoltaic infrared detector in3-5μm and8-12μm range were presented systematically.
KeywordDetectors Electron Mobility Infrared Detectors Optoelectronic Devices Photovoltaic Effects Quantum Chemistry Semiconductor Quantum Wells
Subject Area半导体材料
Indexed ByEI
Date Available2012-06-14
Document Type期刊论文
Corresponding AuthorLiu, J.(
Recommended Citation
GB/T 7714
Liu, Junqi,Zhai, Shenqiang,Kong, Ning,et al. Quantum cascade infrared photodetectors[J]. Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,2011,40(8):1397-1402.
APA Liu, Junqi.,Zhai, Shenqiang.,Kong, Ning.,Li, Lu.,Liu, Fengqi.,...&Liu, J..(2011).Quantum cascade infrared photodetectors.Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,40(8),1397-1402.
MLA Liu, Junqi,et al."Quantum cascade infrared photodetectors".Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering 40.8(2011):1397-1402.
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