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A theoretical estimation model of response speed for photovoltaic HgCdTe infrared detectors
Wang X(王霄); Shi ZL(史泽林)
作者部门光电信息技术研究室
会议名称International Symposium on Optoelectronic Technology and Application 2014
会议日期May 13-15, 2014
会议地点Beijing, China
会议录名称Proc. Of SPIE 9301, International Symposium on Optoelectronic Technology and Application
出版者SPIE
出版地Bellingham, WA
2014
页码1-7
收录类别EI ; CPCI(ISTP)
EI收录号20150800547599
WOS记录号WOS:000349371300061
产权排序1
ISSN号0277-786X
关键词Doping Concentration (Dp) Photovoltaic Hgcdte Infrared Photodetector Response Speed (Rs) Detectivity
摘要Doping concentration is the key factor affecting the performance of infrared detectors. Based on photovoltaic HgCdTe infrared photodetectors, in order to compute the response speed in engineering applications precisely and fastly, a theoretical estimation model is proposed. At first, according to continuity equation of PN junctions that are radiated by infrared radiation, the mechanism of PN junctions in a typical working situation is analyzed and an approximate solving method is established, which shows the analytic expression of the relationship between the response speed of photovoltaic infrared photodetectors and the doping concentration s. Then the response speed of photovoltaic HgCdTe infrared photodetectors is compared to that of photoconductive photodetectors. In the end, the error of the estimation model is checked, which is done through numerical analysis. The results indicate that the response speed rises with the doping concentration increasing as the error increases, the estimation model proposed brings the maximum error of 5.9%, if the doping concentration is 1021 per cubic centimeter.
语种英语
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文献类型会议论文
条目标识符http://ir.sia.cn/handle/173321/15328
专题光电信息技术研究室
通讯作者Wang X(王霄)
作者单位1.Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
2.University of the Chinese Academy of Sciences, Beijing, China
3.Key Laboratory of Opto-Electronic Information Processing, Chinese Academy of Sciences, Shenyang, China
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Wang X,Shi ZL. A theoretical estimation model of response speed for photovoltaic HgCdTe infrared detectors[C]. Bellingham, WA:SPIE,2014:1-7.
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