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Influence of Background Radiation on a Medium-Wave HgCdTe Photoconductive Detector with Overlap Structure

Zhang Yan, Fang Jiaxiong and Xu Guosen

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Abstract: The influence of background radiation on a medium-wave HgCdTe photoconductive detector with an overlap structure is studied.In the experiment design,two methods are put forward to change the background radiation.It is found that the detector noise decreases with the decrease of the background radiation.The g-r noise is calculated from the number of carriers and lifetime theory.It is shown that the calculation result has the same trend as the experimentally observed phenomena.Further noise spectrum measurement shows that 1/f noise is the primary factor that causes the detector noise to change with background radiation.The edge contacts’ asymmetrical MIS structure increases the effect of background radiation on the 1/f noise.

Key words: HgCdTeoverlap structurebackground radiationnoise

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    Received: 18 August 2015 Revised: 09 February 2007 Online: Published: 01 June 2007

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      Zhang Yan, Fang Jiaxiong, Xu Guosen. Influence of Background Radiation on a Medium-Wave HgCdTe Photoconductive Detector with Overlap Structure[J]. Journal of Semiconductors, 2007, In Press. Zhang Y, Fang J X, Xu G S. Influence of Background Radiation on a Medium-Wave HgCdTe Photoconductive Detector with Overlap Structure[J]. Chin. J. Semicond., 2007, 28(6): 958.Export: BibTex EndNote
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      Zhang Yan, Fang Jiaxiong, Xu Guosen. Influence of Background Radiation on a Medium-Wave HgCdTe Photoconductive Detector with Overlap Structure[J]. Journal of Semiconductors, 2007, In Press.

      Zhang Y, Fang J X, Xu G S. Influence of Background Radiation on a Medium-Wave HgCdTe Photoconductive Detector with Overlap Structure[J]. Chin. J. Semicond., 2007, 28(6): 958.
      Export: BibTex EndNote

      Influence of Background Radiation on a Medium-Wave HgCdTe Photoconductive Detector with Overlap Structure

      • Received Date: 2015-08-18
      • Accepted Date: 2006-10-27
      • Revised Date: 2007-02-09
      • Published Date: 2007-05-30

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