高性能PtS_(2)/MoTe_(2)异质结红外光电探测器  

High Performance PtS_(2)/MoTe_(2)Heterojunction Infrared Photodetector

作　　者：潘生生 袁涛 周孝好[2] 王振 PAN Shengsheng;YUAN Tao;ZHOU Xiaohao;WANG Zhen(College of Science,Shanghai University of Technology,Shanghai 200093,China;Shanghai Institute of Technical Physics,Chinese Academy of Sciences,Shanghai 200092,China)

机构地区：[1]上海理工大学理学院,上海200093 [2]中国科学院上海技术物理研究所,上海200092

出　　处：《吉林大学学报（信息科学版）》2024年第1期74-80,共7页Journal of Jilin University（Information Science Edition）

基　　金：上海市自然科学基金资助项目(15ZR1627300)。

摘　　要：由于光电探测器的工作性能直接关系到系统数据采集质量,为此,对高性能PtS_(2)/MoTe_(2)异质结红外光电探测器进行了研究。通过选取材料、试剂和设备制作了PtS_(2)/MoTe_(2)异质结红外光电探测器。搭建探测器性能测试环境,并利用光响应度、探测率、响应时间和光电导增益4个指标,分析探测器性能。结果表明,随着测试时间的推移,PtS_(2)/MoTe_(2)异质结红外光电探测器的光响应度数值始终处于5 A/W限值以上;无论对采集何种材质反射的红外光,探测器探测率均大于10 cm·Hz1/2 W^(-1);无论光生电流是处于上升还是下降时间,其响应时间始终在限值150μs以下;光电导增益值保持在80%以上。As one of the important components of the detection system,the performance of photoelectric detector is directly related to the quality of system data acquisition.In order not to affect the final detection result,it is essential to ensure the detector performance.The performance of high performance PtS_(2)/MoTe_(2)heterojunction infrared photodetector is studied.First,the materials,reagents and equipment are prepared to make PtS_(2)/MoTe_(2)heterojunction infrared photodetectors.The detector performance test environment,the four indicators of light response,detection rate,response time and photoconductivity gain are set up,and the detector performance is analyzed.The results show that the optical responsivity of PtS_(2)/MoTe_(2)heterojunction infrared photodetector is always above the 5 A/W limit with the passage of test time.The detection rate of the detector is greater than 10 cm·Hz1/2 W^(-1)regardless of the infrared light reflected from any material.Whether the photocurrent is in the rising time or the falling time,its response time is always below the limit of 150μs;The photoconductivity gain value has been kept above 80%.

关 键 词：PtS_(2)/MoTe_(2)异质结红外光电探测器 光响应度 探测率 光电导增益 

分 类 号：TP365.66[自动化与计算机技术—计算机系统结构]