首页> 外文会议>Electron Devices Meeting, 2000. IEDM Technical Digest. International >High temperature operated (~250 K) photovoltaic-photoconductive(PV-PC) mixed-mode InAs/GaAs quantum dot infrared photodetector
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High temperature operated (~250 K) photovoltaic-photoconductive(PV-PC) mixed-mode InAs/GaAs quantum dot infrared photodetector

机译:高温(〜250 K)光电光电导(PV-PC)混合模式InAs / GaAs量子点红外光电探测器

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The 10 stacked self-assembled InAs/GaAs quantum dot infraredphotodetector (QDIP) operated in 2.5 to 7 μm range by photovoltaic(PV) and photoconductive (PC) mixed-mode near room temperature (~250 K)was demonstrated. The specific peak detectivity D* is 2.4×108 cm-Hz1/2/W at 250 K. The confining AlxGa1-xAs barrier layers on both sides of stacked QD structureare the key to the high temperature operation
机译:10个堆叠的自组装InAs / GaAs量子点红外 光电检测器(QDIP)在2.5至7μm的范围内运行 (PV)和光电导(PC)接近室温(〜250 K)的混合模式 被证明了。比峰检测灵敏度D *为2.4×10 8 cm-Hz 1/2 / W在250 K. 堆叠QD结构两侧的 1-x As阻挡层 是高温操作的关键

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