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Proceedings Paper

Laser power and temperature dependence on laser beam induced current signal in As-doped p-type HgCdTe
Author(s): Yongguo Chen; Weida Hu; Xiaoshuang Chen; Zhenhua Ye; Jun Wang; Chun Lin; Xiaoning Hu; Wei Lu
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Paper Abstract

The polarity inversion of laser beam induced current (LBIC) signal at low temperature and high laser power density in As-doped p-type HgCdTe is investigated in this paper. It is found that the polarity of LBIC signal reverses at 87 K compared to that at 300 K and the high laser power density is also an important factor in inducing the LBIC signal reverse. The results demonstrate that the shape of the LBIC signal profile is strongly dependent on the temperature of the device and the laser irradiation. To provide a reasonable analysis for this interesting fact, a photocarrier spreading mode is presented in this paper.

Paper Details

Date Published: 31 May 2012
PDF: 6 pages
Proc. SPIE 8353, Infrared Technology and Applications XXXVIII, 83532S (31 May 2012); doi: 10.1117/12.918806
Show Author Affiliations
Yongguo Chen, Shanghai Institute of Technical Physics (China)
Weida Hu, Shanghai Institute of Technical Physics (China)
Xiaoshuang Chen, Shanghai Institute of Technical Physics (China)
Zhenhua Ye, Shanghai Institute of Technical Physics (China)
Jun Wang, Shanghai Institute of Technical Physics (China)
Chun Lin, Shanghai Institute of Technical Physics (China)
Xiaoning Hu, Shanghai Institute of Technical Physics (China)
Wei Lu, Shanghai Institute of Technical Physics (China)


Published in SPIE Proceedings Vol. 8353:
Infrared Technology and Applications XXXVIII
Bjørn F. Andresen; Gabor F. Fulop; Paul R. Norton, Editor(s)

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