Photovoltaic high-performance broadband photodetector based on MoS2/Si nanowire array heterojunction

Di Wu; Zhenhua Lou; Yuange Wang; Zhiqiang Yao; Tingting Xu; Zhifeng Shi; Junmin Xu; Yongtao Tian; Xinjian Li; Yuen Hong Tsang

doi:10.1016/j.solmat.2018.03.017

Photovoltaic high-performance broadband photodetector based on MoS₂/Si nanowire array heterojunction

Di Wu, Zhenhua Lou, Yuange Wang, Zhiqiang Yao, Tingting Xu, Zhifeng Shi, Junmin Xu, Yongtao Tian, Xinjian Li, Yuen Hong Tsang

Research output: Journal article publication › Journal article › Academic research › peer-review

80 Citations (Scopus)

Abstract

Photovoltaic MoS₂/Si nanowire array (SiNWA) heterojunction photodetectors (PDs) are constructed and investigated, which exhibit excellent photoresponse properties to light illumination at wavelengths from the deep ultraviolet to the near-infrared. Further photoresponse analysis reveals that a high responsivity of 53.5 A/W and a specific detectivity of 2.8 × 10¹³ Jones, as well as fast response speeds of 2.9/7.3 μs at 50 kHz are achieved in a MoS₂/SiNWA heterojunction device. The high performances could be attributed to the high-quality heterojunction between MoS₂ and the SiNWA. Such high performances of MoS₂/SiNWA PDs are much better than those of previously reported MoS₂-based PDs, suggesting that MoS₂/SiNWA heterojunction devices have great potential in optoelectronic applications.

Original language	English
Pages (from-to)	272-280
Number of pages	9
Journal	Solar Energy Materials and Solar Cells
Volume	182
DOIs	https://doi.org/10.1016/j.solmat.2018.03.017
Publication status	Published - 1 Aug 2018

Keywords

Heterojunction
Molybdenum disulfide
Photodetectors
Self-powered
Si nanowire arrays

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Surfaces, Coatings and Films

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

More information

10.1016/j.solmat.2018.03.017

http://hdl.handle.net/10397/78951

Cite this

@article{d8d31139294545949b944df33e9daad8,

title = "Photovoltaic high-performance broadband photodetector based on MoS2/Si nanowire array heterojunction",

abstract = "Photovoltaic MoS2/Si nanowire array (SiNWA) heterojunction photodetectors (PDs) are constructed and investigated, which exhibit excellent photoresponse properties to light illumination at wavelengths from the deep ultraviolet to the near-infrared. Further photoresponse analysis reveals that a high responsivity of 53.5 A/W and a specific detectivity of 2.8 × 1013 Jones, as well as fast response speeds of 2.9/7.3 μs at 50 kHz are achieved in a MoS2/SiNWA heterojunction device. The high performances could be attributed to the high-quality heterojunction between MoS2 and the SiNWA. Such high performances of MoS2/SiNWA PDs are much better than those of previously reported MoS2-based PDs, suggesting that MoS2/SiNWA heterojunction devices have great potential in optoelectronic applications.",

keywords = "Heterojunction, Molybdenum disulfide, Photodetectors, Self-powered, Si nanowire arrays",

author = "Di Wu and Zhenhua Lou and Yuange Wang and Zhiqiang Yao and Tingting Xu and Zhifeng Shi and Junmin Xu and Yongtao Tian and Xinjian Li and Tsang, {Yuen Hong}",

year = "2018",

month = aug,

day = "1",

doi = "10.1016/j.solmat.2018.03.017",

language = "English",

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journal = "Solar Energy Materials and Solar Cells",

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T1 - Photovoltaic high-performance broadband photodetector based on MoS2/Si nanowire array heterojunction

AU - Wu, Di

AU - Lou, Zhenhua

AU - Wang, Yuange

AU - Yao, Zhiqiang

AU - Xu, Tingting

AU - Shi, Zhifeng

AU - Xu, Junmin

AU - Tian, Yongtao

AU - Li, Xinjian

AU - Tsang, Yuen Hong

PY - 2018/8/1

Y1 - 2018/8/1

N2 - Photovoltaic MoS2/Si nanowire array (SiNWA) heterojunction photodetectors (PDs) are constructed and investigated, which exhibit excellent photoresponse properties to light illumination at wavelengths from the deep ultraviolet to the near-infrared. Further photoresponse analysis reveals that a high responsivity of 53.5 A/W and a specific detectivity of 2.8 × 1013 Jones, as well as fast response speeds of 2.9/7.3 μs at 50 kHz are achieved in a MoS2/SiNWA heterojunction device. The high performances could be attributed to the high-quality heterojunction between MoS2 and the SiNWA. Such high performances of MoS2/SiNWA PDs are much better than those of previously reported MoS2-based PDs, suggesting that MoS2/SiNWA heterojunction devices have great potential in optoelectronic applications.

AB - Photovoltaic MoS2/Si nanowire array (SiNWA) heterojunction photodetectors (PDs) are constructed and investigated, which exhibit excellent photoresponse properties to light illumination at wavelengths from the deep ultraviolet to the near-infrared. Further photoresponse analysis reveals that a high responsivity of 53.5 A/W and a specific detectivity of 2.8 × 1013 Jones, as well as fast response speeds of 2.9/7.3 μs at 50 kHz are achieved in a MoS2/SiNWA heterojunction device. The high performances could be attributed to the high-quality heterojunction between MoS2 and the SiNWA. Such high performances of MoS2/SiNWA PDs are much better than those of previously reported MoS2-based PDs, suggesting that MoS2/SiNWA heterojunction devices have great potential in optoelectronic applications.

KW - Heterojunction

KW - Molybdenum disulfide

KW - Photodetectors

KW - Self-powered

KW - Si nanowire arrays

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DO - 10.1016/j.solmat.2018.03.017

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JO - Solar Energy Materials and Solar Cells

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