High-performance visible-near IR photodetectors based on high-quality Sn2+-sensitized PbS films

doi:10.1016/j.jallcom.2021.160860

HFCAS OpenIR

	High-performance visible-near IR photodetectors based on high-quality Sn2+-sensitized PbS films
	Li Liu, Shu 1,2,3; Fei, Guang Tao1,2 ; Xu, Shao Hui 1,2; Gao, Xu Dong 1,2
	2021-11-25
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
通讯作者	Fei, Guang Tao(gtfei@issp.ac.cn) ; Xu, Shao Hui(shxu@issp.ac.cn)
摘要	High-quality Sn2+-sensitized PbS films were deposited via a cost-effective chemical route. The results demonstrate that the Sn2+-sensitized PbS thin films have better crystallinity and larger grain size. Photoelectric performance of Sn2+-sensitized PbS films has been improved greatly in the visible and near-infrared range. With Sn2+ sensibilization, photoresponsivity is more than 9 times higher, and detectivity is as high as similar to 10(10) cm(2) Hz(1/2) W-1. Notably, the response speed of the Sn2+-sensitized PbS films reaches a magnitude of microseconds, which is over 10(5) times improvements compared with the pure PbS film devices. Additionally, high-frequency switching behavior at 4 kHz shows excellent stability. Based on the feasible method and excellent photoelectric performance of the devices, it has been demonstrated that Sn2+ sensibilization is of viability to improve the detection performance of commercial photodetectors. (C) 2021 Elsevier B.V. All rights reserved.
关键词	Sensibilization PbS films High responsivity Photodetector Fast response
DOI	10.1016/j.jallcom.2021.160860
关键词[WOS]	THIN-FILMS ; SULFIDE ; HETEROJUNCTION
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51671183] ; National Natural Science Foundation of China[51701207] ; National Natural Science Foundation of China[51971210]
项目资助者	National Natural Science Foundation of China
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000681196800002
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：14[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/123124
专题	中国科学院合肥物质科学研究院
通讯作者	Fei, Guang Tao; Xu, Shao Hui
作者单位	1.Chinese Acad Sci, Key Lab Mat Phys, Inst Solid State Phys, Hefei Inst Phys Sci, Hefei 230031, Peoples R China 2.Chinese Acad Sci, Anhui Key Lab Nanomat & Nanotechnol, Inst Solid State Phys, Hefei Inst Phys Sci, Hefei 230031, Peoples R China 3.Univ Sci & Technol China, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Li Liu, Shu,Fei, Guang Tao,Xu, Shao Hui,et al. High-performance visible-near IR photodetectors based on high-quality Sn2+-sensitized PbS films[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2021,883.
APA	Li Liu, Shu,Fei, Guang Tao,Xu, Shao Hui,&Gao, Xu Dong.(2021).High-performance visible-near IR photodetectors based on high-quality Sn2+-sensitized PbS films.JOURNAL OF ALLOYS AND COMPOUNDS,883.
MLA	Li Liu, Shu,et al."High-performance visible-near IR photodetectors based on high-quality Sn2+-sensitized PbS films".JOURNAL OF ALLOYS AND COMPOUNDS 883(2021).