【摘要】 介绍了叠层双色红外焦平面的发展背景和适用的材料体系,及其在国际上的发展现状,重点论述了叠层双色探测器结构类型及其探测特点,最后介绍了国内碲镉汞叠层双色焦平面的研究进展。报道了基于n-+p-P-P-N多层异质结Hg1-xCdxTe材料的叠层中波/短波(256×1)×2红外双色焦平面器件研制及性能。在77 K液氮温度下,红外焦平面探测器的两个波段的截止波长λc分别为2.8μm和3.9μm,中波/短波焦平面的平均单色探测率D*%p分别为1.8×1011 cmHz1/2/W和9.6×1010 cmHz1/2/W。更多还原

【Abstract】 The development background and applied material structure of integrated two-color infrared focal plane are presented,including current international progress.The structure types and characteristics of integrated two-color infrared detector are discussed in detail.The domestic research progress of integrated two-color infrared focal plane is introduced finally.The multi-layer n+-p-P-P-N heterojunction Hg1-xCdxTe film,device fabrication and performance of integrated SW/MW two-color(256×1)×2 infrared focal plane arrays was reported in this paper.At 77 K temperature,the cut-off wavelengths of the two bands were 2.8 μm and 3.9 μm respectively,the peak detectivities D*λp were 1.8×1011cmHz1/2/W and 9.6×1010 cmHz1/2/W.更多还原