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Title: Characteristics of InGaAs quantum dot infrared photodetectors
Authors: Xu, S.J. 
Chua, S.J. 
Mei, T.
Wang, X.C.
Zhang, X.H.
Karunasiri, G. 
Fan, W.J.
Wang, C.H.
Jiang, J.
Wang, S.
Xie, X.G.
Issue Date: 1998
Citation: Xu, S.J., Chua, S.J., Mei, T., Wang, X.C., Zhang, X.H., Karunasiri, G., Fan, W.J., Wang, C.H., Jiang, J., Wang, S., Xie, X.G. (1998). Characteristics of InGaAs quantum dot infrared photodetectors. Applied Physics Letters 73 (21) : 3153-3155. ScholarBank@NUS Repository.
Abstract: A quantum dot infrared photodetector (QDIP) consisting of self-assembled InGaAs quantum dots has been demonstrated. Responsivity of 3.25 mA/W at 9.2 μm was obtained for nonpolarized incident light on the detector with a 45° angle facet at 60 K. The QDIPs exhibit some unique electro-optic characteristics such as a strong negative differential photoconductance effect and blueshift of the response peak wavelength. © 1998 American Institute of Physics.
Source Title: Applied Physics Letters
ISSN: 00036951
DOI: 10.1063/1.122703
Appears in Collections:Staff Publications

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