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enhanced absorptivity of quantum dot infrared photodetector by introducing of metal nanostructure layer
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نویسنده
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liu hongmei ,junjun liang ,lin qiaowen ,gao zhixiang ,li jiangang ,yang chunhua ,wei guodong
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منبع
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plasmonics - 2020 - دوره : 15 - شماره : 5 - صفحه:1421 -1427
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چکیده
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Quantum dot infrared photodetector (qdip) shows more superior characteristics; however, the low absorption rate is still the fundamental factor restricting the performance of the detector. so in our paper, the qdip is improved by introducing the metal structure with the strips and holes to increase absorptivity. the results demonstrate that the enhanced qdip can greatly improve the photon absorptivity up to 98.92% as a result of the local coupling surface plasmon effect, which is 1.23 times than that of the conventional photodetectors without the metal array structures.
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کلیدواژه
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quantum dot infrared photodetector ,surface plasmon ,metal
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آدرس
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shanxi datong university, institute of solid state physics, school of physical science and electronics, china, xi’an shiyou university, school of science, china, shanxi datong university, school of physical science and electronics, china, shanxi datong university, institute of solid state physics, school of physical science and electronics, china, shanxi datong university, institute of solid state physics, school of physical science and electronics, china, shanxi datong university, school of physical science and electronics, china, key laboratory of physics and technology for advanced batteries (ministry of education), jilin university, china
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Authors
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