(英)基于Pt/CdS与InSb光伏型紫外-红外焦平面探测器的双色探测机理研究
Received:December 21, 2016  Revised:April 07, 2017  点此下载全文
引用本文:李庆,白杰,吕衍秋,胡伟达,陈效双,陆卫.(英)基于Pt/CdS与InSb光伏型紫外-红外焦平面探测器的双色探测机理研究[J].Journal of Infrared and Millimeter Waves,2017,36(4):385~388
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Author NameAffiliationE-mail
Li Qing Shanghai institute of technical physics liqing1@shanghaitech.edu.cn 
Jie Bai Shanghai institute of technical physics  
Yanqiu Lv China Airborne Missile Academy  
Weida Hu Shanghai Institute of Technical Physics wdhu@mail.sitp.ac.cn 
Xiaoshuang Chen Shanghai Institute of Technical Physics  
Wei Lu Shanghai Institute of Technical Physics  
基金项目:国家自然科学基金项目
中文摘要:紫外与红外大气窗口蕴含着与人类密切相关的信息。基于新型的时域有限差分光子学分析方法联合有限元电学分析方法研究了Pt/CdS紫外与InSb 红外双色焦平面阵列探测器的双色探测机理。研究发现,超薄 Pt金属膜与CdS形成肖特基结可以获得较大的紫外光响应并能更好耦合红外光。采用像元间距为50μm的Pt/CdS与InSb键合结构,可以很好的抑制像元间的串音。结果证明了紫外-红外双色探测的可行性,该方法将为紫外-红外双色探测器的设计提供基础指导。
中文关键词:紫外-红外双色焦平面阵列,Pt/CdS紫外探测器,InSb红外探测器
 
Analysis of ultraviolet and infrared dual-color focal-plane arrays detector based on Pt/CdS and InSb junctions
Abstract:Detection in ultraviolet and infrared ranges is essential for remote atmospheric sounding which includes important information closely related to human life. Based on finite difference time domain method (FDTD) and finite element method (FEM), the mechanism of Pt/CdS and InSb ultraviolet-infrared dual-color focal-plane arrays are investigated. It is found that a high ultraviolet photo response can be achieved for Pt/CdS Schottky junction under an ultrathin Pt top contact. Further simulations show that the ultrathin top contact can efficiently couple the infrared radiation for the dual-color focal-plane arrays detector. The center to center spacing of each pixel of 50μm in the ultraviolet and infrared dual-color focal-plane arrays detector based on Pt/CdS and InSb junctions can significantly reduce crosstalk. Our work provides fundamental guidance for optimization and design of ultraviolet and infrared dual-color detector.
keywords:dual-color focal-plane arrays, Pt/CdS ultraviolet detector, InSb infrared detector
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