Ultrabroadband Photodetector Based on Ferromagnetic van der Waals Heterodiode

doi:10.1002/aelm.202200208

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	Ultrabroadband Photodetector Based on Ferromagnetic van der Waals Heterodiode
	X. Hu; J. Hou; Q. S. Dong; Z. Y. Liu; S. F. Wang; F. Wang; Y. B. Tu; T. Han; F. Li; Z. Y. Zhang; X. Y. Hou; S. L. Wang; D. X. Zhao; L. Shan and M. S. Long
	2022
Source Publication	Advanced Electronic Materials
ISSN	2199-160X
Volume	8 Issue:10 Pages:10
Abstract	The discovery of 2D ferromagnetic (FM) van der Waals (vdW) semiconductors with narrow bandgap and p-type transport behavior makes them promising for infrared photodetection. Here, a 2D vdW heterodiode uncooled long-wave infrared (LWIR) photodetector by stacking a p-type 2D FM material CrSiTe3 on top of an n-type transition metal dichalcogenides (TMDs) MoS2 is reported. A good rectification ratio >10(2) and an ultra-broadband photoresponse from 0.52 to 10.6 mu m are demonstrated. The photoresponsivity of up to 20.7 A W-1 and the external quantum efficiency (EQE) of up to 4031.7% are obtained under a 1310 nm laser at a -1 V bias in ambient, which indicates that these CrSiTe3-MoS2 p-n junction devices have a good photovoltaic response. Meanwhile, the photovoltaic responsivity up to 0.15 A W-1, EQE up to 29.7%, and fast response with a decay time of 2.8 mu s at 637 nm are demonstrated. In addition, the room temperature mid-wave infrared (MWIR) specific detectivity and LWIR specific detectivity of CrSiTe3-MoS2 is 6.1 x 10(9) cm Hz(1/2) W-1 and 1.93 x 10(9) cm Hz(1/2) W-1, respectively. These observations open up possibilities for developing high-sensitive infrared detection based on the valley optical selection rule and LWIR image technology.
DOI	10.1002/aelm.202200208
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Indexed By	sci ; ei
Language	英语
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Document Type	期刊论文
Identifier	http://ir.ciomp.ac.cn/handle/181722/67207
Collection	中国科学院长春光学精密机械与物理研究所
Recommended Citation GB/T 7714	X. Hu,J. Hou,Q. S. Dong,et al. Ultrabroadband Photodetector Based on Ferromagnetic van der Waals Heterodiode[J]. Advanced Electronic Materials,2022,8(10):10.
APA	X. Hu.,J. Hou.,Q. S. Dong.,Z. Y. Liu.,S. F. Wang.,...&L. Shan and M. S. Long.(2022).Ultrabroadband Photodetector Based on Ferromagnetic van der Waals Heterodiode.Advanced Electronic Materials,8(10),10.
MLA	X. Hu,et al."Ultrabroadband Photodetector Based on Ferromagnetic van der Waals Heterodiode".Advanced Electronic Materials 8.10(2022):10.

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中国科学院长春光学精密机械与物理研究所