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128×128三电极中/长波双色量子阱红外探测器

128×128 mid and long-wavelength dual-band quantum well infrared photodetector with three electrodes

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【作者】 苏艳梅种明曾一平胡小燕于艳孙捷张晓燕

【Author】 Su Yanmei1,Chong Ming1,Zeng Yiping1,Hu Xiaoyan2,Yu Yan2,Sun Jie1,Zhang Xiaoyan1(1.Laboratory of Nano-Optoelectronics,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China; 2.North China Research Institute of Electro-optics,Beijing 100015,China)

【机构】 中国科学院半导体研究所纳米光电子实验室华北光电技术研究所

【摘要】 量子阱红外探测器(QWIP)阵列具有重要的实用意义。国外的研究已经相当成熟,但是在国内,量子阱红外探测器阵列的研究水平还较低,尤其是对于双色量子阱红外探测器阵列的研究更是刚刚起步。文中使用GaAs/AlGaAs、InGaAs/AlGaAs应变量子阱和三端电极引出的器件结构研制出128×128中/长波双色量子阱红外探测器阵列。该结构实现了同像元同时引出双色信号。器件像元中心距为40μm,像元有效面积为36μm×36μm。探测器芯片与读出电路互连并完成微杜瓦封装。在65 K条件下测试,峰值波长为:中波5.37μm,长波8.63μm,器件的平均峰值探测率为:中波4.75×109cmHz1/2W-1,长波3.27×109cmHz1/2W-1。并进行了双波段的红外演示成像。

【Abstract】 Quantum well infrared photodetector(QWIP) array has practical significance.The research abroad is already quite mature.However,the research of QWIP array is still on a relatively low level at home,especially for two-color QWIP array,which is just beginning.In this paper,a 128×128 mid and long-wavelength dual-band QWIP array was developed using GaAs/AlGaAs and InGaAs/AlGaAs strained quantum wells and tree electrodes structure.This structure realized that a pixel could leads to two color signals at the same time.The pitch of the array was 40 μm with the pixel size of 36 μm×36 μm.A detector array was hybridized to a readout circuit and installed into a micro Dewar.At 65 K,the average peak detectivity Dλ* is 4.75×109 cmHz1/2W-1 for the mid-wavelength with peak wavelength of 5.37 μm and 3.27×109 cmHz1/2W-1 for the long-wavelength with peak wavelength of 8.63 μm.The infrared demonstration images were obtained in both mid and long-wavelength band.

【关键词】 红外探测器量子阱双色
【Key words】 infrared photodetectorquantum welldual-band
  • 【文献出处】 红外与激光工程 ,Infrared and Laser Engineering , 编辑部邮箱 ,2012年09期
  • 【分类号】TN215
  • 【被引频次】8
  • 【下载频次】277
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