Mercury Cadmium Telluride Photoconductive Long Wave Infrared Linear Array Detectors

Defence Science Journal

Vandna Mittal¹  Risal Singh¹ 

[1] Solid State Physics Laboratory, Delhi

关键词: Photoconductor;    infrared detector;    LWIR;    linear array;    processing;    passivation;    overlap;    design;    blocking contacts;    heterostructure;    responsivity;    noise;    detectivity;   

DOI  :  

学科分类：社会科学、人文和艺术（综合）

来源: Defence Scientific Information & Documentation Centre

【 摘 要 】

Mercury cadmium telluride (Hg1-x, CdxTe) (MCT) photoconductive long wave infrared linear arrays are still in demand due to several advantages. The linear array technology is well established, easier, economical and is quite relevant to thermal imaging even today. The scan thermal imaging systems based on this technology offer wider field of view coverage and capacity for higher resolution in the scan direction relative to staring systems that use expensive and yet to mature focal plane array detector technology. A critical review on photoconductive n-Hg1-x CdxTe linear array detector technology for the long wave infrared range has been presented. The emphasis lies on detector design and processing technology. The critical issues of diffusion and drift effects, Hi-Lo and heterostructure blocking contacts, surface passivation, and other related aspects have been considered from the detector design angle. The device processing technology aspects are of vital importance

【 授权许可】

Unknown