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首页> 外文期刊>Optics Letters >High-responsivity broadband photodetection of an ultra-thin In2S3/CIGS heterojunction on steel
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High-responsivity broadband photodetection of an ultra-thin In2S3/CIGS heterojunction on steel

机译:高响应性宽带光电探测钢上的超薄IN2S3 / CIGS异质结

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摘要

Cu(In, Ga)Se-2 (CIGS) is a promising light harvesting material for large-area broadband photodetection, but it has been rarely studied up to now. Here an In2S3/CIGS heterojunction photodiode on steel is shown to be highly broadband photo-sensitive, with a photoresponsivity over 0.8 A/W, an external quantum efficiency over 100%, and a detectivity over 8 x 10(10) Jones from 505 to 910nm under a reverse bias of 1 V. Moreover, the CIGS photodiode exhibits an outstanding weak light detection ability (i.e., at light power density of 20 mu W/cm(2)), reaching a record. responsivity of 2.06 A/W, an impressive EQE of 293%, and a good detectivity of 2.3 x 10(11) Jones at 870 nm under 1 V reverse bias. Importantly, the CIGS photodiode, working as a self-powered photodetector, under 0 V, shows a record. detectivity of similar to 3.4 x 10(12) Jones with a high responsivity of similar to 0.44 A/W and a high EQE of similar to 63%, at 870 nm. (C) 2021 Optical Society of America
机译:Cu(In,Ga)Se-2(CIGS)是一种很有希望用于大面积宽带光探测的集光材料,但迄今为止研究较少。在这里,钢上的In2S3/CIGS异质结光电二极管显示出高宽带光敏性,在1 V反向偏压下,其光响应率超过0.8 a/W,外部量子效率超过100%,检测率超过8 x 10(10)Jones,从505到910nm。此外,CIGS光电二极管表现出出色的弱光检测能力(即,在光功率密度为20μW/cm(2))达到创纪录水平。在1 V反向偏压下,响应度为2.06 A/W,令人印象深刻的EQE为293%,在870 nm处的良好探测率为2.3 x 10(11)Jones。重要的是,CIGS光电二极管作为一个自供电光电探测器,在0伏以下,显示了一个记录。在870nm处的探测率类似于3.4 x 10(12)Jones,高响应度类似于0.44 a/W,高EQE类似于63%。(2021)美国光学学会

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  • 来源
    《Optics Letters》 |2021年第10期|共4页
  • 作者单位

    UCLouvain ICTEAM B-1348 Louvain La Neuve Belgium;

    UCLouvain ICTEAM B-1348 Louvain La Neuve Belgium;

    UCLouvain ICTEAM B-1348 Louvain La Neuve Belgium;

    AC &

    CS CRM Grp Blvd Colonster B57 B-4000 Liege Belgium;

    Midsummer AB Elekt 6 S-17543 Jarfalla Sweden;

    Midsummer AB Elekt 6 S-17543 Jarfalla Sweden;

    Midsummer AB Elekt 6 S-17543 Jarfalla Sweden;

    Hunan Univ Sch Phys &

    Elect Changsha 410082 Peoples R China;

    UCLouvain ICTEAM B-1348 Louvain La Neuve Belgium;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
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