量子点红外探测器的性能优化  

Performance Optimization of Quantum Dot Infrared Photodetectors

作　　者：刘红梅[1,2] 董丽娟[1,2] 石云龙[1,2] 

机构地区：[1]山西大同大学固体物理研究所,山西大同037009 [2]山西省高等学校重点实验室(山西大同大学),山西大同037009

出　　处：《山西大同大学学报（自然科学版）》2014年第4期14-16,共3页Journal of Shanxi Datong University(Natural Science Edition)

基　　金：国家自然科学基金项目[61307121];山西大同大学博士科研启动基金资助项目[2012-B-04]

摘　　要：量子点红外探测器是近年来出现的一种新型低维纳米结构探测器,因其优越的特性引起了人们的广泛关注。本文给出了一种估算量子点红外探测器光电流的方法,并以此为基础,进一步研究了探测器结构对光电流性能的影响。结果显示,当结构参数层内量子点密度和量子点横向尺寸的取值都比较小时,探测器能获得一个高的光电流。Quantum dot infrared photodetector is a novel lower-dimensional nano-structure detectors appearingin recent years,and it attracts a wide attentions due to its superior properties. In this paper, the method used to estimation of the photocurrent in the quantum dot infrared photodetectors is given, moreover, the influences of the structure on the photocurrent are also discussed based on this method. The results show that the detector can obtain a high photocurrent when the structure parameters such as the quantum dots density in a layer and the lateralsize of the quantum dot are small in the values.

关 键 词：量子点红外探测器 光电流 性能优化 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]