温度对量子阱红外探测器峰值波长的影响  

EFFECT OF TEMPERATURE ON QUANTUM WELL INFRARED DETECTOR PEAK WAVELENGTH DETECTOR

作　　者：岳晓芳 许丽萍[1] 温廷敦[1] 王志斌[1,2,3] 刘云鹏[1] 

机构地区：[1]中北大学理学院,太原030051 [2]中北大学电子测试技术国家重点实验室,太原030051 [3]山西省光电信息与仪器工程技术研究中心,太原030051

出　　处：《低温物理学报》2016年第2期107-111,共5页Low Temperature Physical Letters

基　　金：国家自然科学基金(批准号:60776062;50730009);国家自然科学基金仪器专项基金项目(批准号:61127015)资助的课题

摘　　要：量子阱红外探测器(QWIP)是一种对红外辐射信息进行高灵敏度感应的光电转换器件,温度是影响其性能的一个参数.文章以超晶格量子阱发射与干涉电子态理论和吸收波长公式为依据,通过计算温度对势阱、势垒宽度和势垒高度的影响,得出量子阱红外探测器峰值波长与温度的变化关系.发现:当温度升高时,探测峰值发生改变,其中有两处峰值发生红移,一处发生蓝移.这对精确分析红外辐射携带信息和制作非制冷量子阱红外探测器提供了理论指导.Quantum well infrared detector （QWIP） is a kind of photoelectric converter with high sensitivity to infrared radiation information. The temperature is a parameter that affects its performance. Based on the theory of quantum well emission and interference electron states and the absorption wavelength formula, the influence of temperature on the potential well, barrier width and barrier height is calculated. The relationship between peak wavelength and temperature of quantum well infrared detector is obtained. It is found that when the temperature rises, the detection peak changes： there are two peaks in the red shift, and a blue shift occurs. This provides a theoretical guidance for the accurate analysis of infrared radiation and the production of non refrigeration quantum well infrared detectors.

关 键 词：量子阱红外探测器 温度 能级跃迁 带隙 峰值波长 

分 类 号：TN215[电子电信—物理电子学]