CAS OpenIR
Self-assembled KCu7S4 nanowire monolayers for self-powered near-infrared photodetectors
Wang, You-Yi1; Wu, Ya-Dong2; Peng, Wei1; Song, Yong-Hong2; Wang, Bao3; Wu, Chun-Yan1; Lu, Yang2
2018-10-21
Source PublicationNANOSCALE
ISSN2040-3364
Volume10Issue:39Pages:9
Abstract

Near infrared light (NIR) photodetectors based on one-dimensional semiconductor nanowires have generated considerable interest due to their practical application in versatile fields. We present a facile yet efficient approach to rationally integrating KCu7S4 semiconductor nanowires by the Langmuir-Blodgett (LB) technique. A self-powered near infrared (NIR) light photodetector is fabricated by transferring a close-packed KCu7S4 nanowire monolayer to the surface of a silicon wafer. The as-fabricated Si/KCu7S4 heterojunction with a close-packed and well-aligned nanowire array exhibits splendid photovoltaic performance when illuminated by NIR light, allowing the detection of NIR light without an exterior power supply. The photodetector exhibits a high sensitivity to NIR light (980 nm, 295.3 mu W cm(-2)) with responsivity (R) 15 mA W-1 and detectivity (D*) 2.15 x 10(12) cm Hz(1/2) W-1. Significantly, the device shows the capability to work under high pulsed light irradiation up to 50 kHz with a high-speed response (response time iota(r) 7.4 mu s and recovery time iota(f) 8.6 mu s). This facilitates the fabrication of low-cost and high-speed photodetectors and integrated optoelectronic sensor circuitry.

DOI10.1039/c8nr01553h
Language英语
WOS KeywordChemical-vapor-deposition ; Schottky Junction ; High-speed ; Transparent Electrodes ; Light Photodetector ; Low-noise ; Heterojunction ; Performance ; Arrays ; Devices
Funding ProjectNatural Science Foundation of China (NSFC)[51572067] ; Natural Science Foundation of China (NSFC)[21501039] ; Natural Science Foundation of China (NSFC)[51772296] ; Natural Science Foundation of China (NSFC)[61675062] ; Natural Science Foundation of China (NSFC)[61575059] ; Natural Science Foundation of China (NSFC)[51502281] ; Natural Science Foundation of Anhui Province of China[1408085MB31] ; Fundamental Research Funds for the Central Universities[JZ2018HGPA0269] ; Fundamental Research Funds for the Central Universities[2015HGCH0009]
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
Funding OrganizationNatural Science Foundation of China (NSFC) ; Natural Science Foundation of Anhui Province of China ; Fundamental Research Funds for the Central Universities
WOS IDWOS:000448421100009
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/26392
Collection中国科学院过程工程研究所
Corresponding AuthorWu, Chun-Yan; Lu, Yang
Affiliation1.Hefei Univ Technol, Sch Elect Sci & Appl Phys, Hefei 230009, Anhui, Peoples R China
2.Hefei Univ Technol, Biomed & Environm Interdisciplinary Res Ctr, Sch Chem & Chem Engn, Hefei 230009, Anhui, Peoples R China
3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Wang, You-Yi,Wu, Ya-Dong,Peng, Wei,et al. Self-assembled KCu7S4 nanowire monolayers for self-powered near-infrared photodetectors[J]. NANOSCALE,2018,10(39):9.
APA Wang, You-Yi.,Wu, Ya-Dong.,Peng, Wei.,Song, Yong-Hong.,Wang, Bao.,...&Lu, Yang.(2018).Self-assembled KCu7S4 nanowire monolayers for self-powered near-infrared photodetectors.NANOSCALE,10(39),9.
MLA Wang, You-Yi,et al."Self-assembled KCu7S4 nanowire monolayers for self-powered near-infrared photodetectors".NANOSCALE 10.39(2018):9.
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