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A hybrid photodetector of graphene/TiO2/inorganic PbS quantum dots for fast response

文献类型：期刊论文

作者Ge,Bangtong1; Nie,Changbin2; Shen,Jun2
刊名Japanese Journal of Applied Physics
出版日期2022-03-17
卷号61期号:4
ISSN号0021-4922
关键词photodetector graphene PbS quantum dots photogating effect
DOI10.35848/1347-4065/ac56fc
通讯作者Ge,Bangtong() ; Shen,Jun()
英文摘要Abstract Hybrid graphene/quantum dots photodetectors have been obtained up to 109 A W?1 ultrahigh responsivity, but the major challenge of these architectures is the slow photoresponse speed, especially the delay time of these configurations is mostly on the second time scale. Herein, we propose a hybrid photodetector of graphene/TiO2 films/inorganic PbS quantum dots, which bridge the gap between high sensitivity and fast response time at visible band detection. Under 635 nm light illumination, the device shows a high responsivity of 1.2?×?104 A W?1, a fast decay time of 35 ms, and a specific detectivity of 1.5?×?1012 Jones at 1 V bias. The high responsivity is ascribed to the photogating effect, and the major findings hold great promise for application in optoelectronics.
语种英语
出版者IOP Publishing
WOS记录号IOP:JJAP_61_4_040903
源URL[http://119.78.100.138/handle/2HOD01W0/15103]  
专题中国科学院重庆绿色智能技术研究院
通讯作者Ge,Bangtong; Shen,Jun
作者单位1.School of Materials Science and Engineering, Chongqing University, Chongqing 400044, People’s Republic of China
2.Key Laboratory of Multi-scale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, People’s Republic of China
推荐引用方式
GB/T 7714		 Ge,Bangtong,Nie,Changbin,Shen,Jun. A hybrid photodetector of graphene/TiO2/inorganic PbS quantum dots for fast response[J]. Japanese Journal of Applied Physics,2022,61(4).
APA Ge,Bangtong,Nie,Changbin,&Shen,Jun.(2022).A hybrid photodetector of graphene/TiO2/inorganic PbS quantum dots for fast response.Japanese Journal of Applied Physics,61(4).
MLA Ge,Bangtong,et al."A hybrid photodetector of graphene/TiO2/inorganic PbS quantum dots for fast response".Japanese Journal of Applied Physics 61.4(2022).

入库方式： OAI收割

来源：重庆绿色智能技术研究院

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