Dark current and noise analyses of quantum dot infrared photodetectors

被引：19

作者：

Liu, Hongmei ^{[1
,2
]}

Zhang, Jianqi ^{[1
]}

机构：

[1] Xidian Univ, Sch Tech Phys, Xian 710071, Shaanxi Provinc, Peoples R China

[2] Shanxi Datong Univ, Sch Phys Sci & Elect, Datong City 037009, Shanxi Province, Peoples R China

来源：

APPLIED OPTICS | 2012年 / 51卷 / 14期

关键词：

MODEL;

D O I：

10.1364/AO.51.002767

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Because the dark current and the noise of quantum dot infrared photodetectors (QDIPs) can bring about a degradation in their performance, they have attracted more and more attention in recent years. In this paper, an algorithm used to evaluate the dark current of the QDIP is proposed, which is based on the algorithm including the common contribution of the microscale and the nanoscale electron transport. Namely, by accounting for the dependence of the drift velocity on the applied electric field, we greatly enhance the accuracy of the dark current calculation compared with that in the previous algorithm. This proposed algorithm is further used to estimate the noise current of QDIP, and the calculated results show a good agreement with the published data. (C) 2012 Optical Society of America

引用

页码：2767 / 2771

页数：5

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