Bias-dependent photoresponse of Td-WTe2 grown by chemical vapor deposition

Yupeng Cao; Aiping Cao; Shubing Li; Jianli Tang; Rui Hu; Liyan Shang; Yawei Li; Kai Jiang; Jinzhong Zhang; Liangqing Zhu; Zhigao Hu

doi:10.1088/1361-6528/ad5dbf

Bias-dependent photoresponse of T_d-WTe₂ grown by chemical vapor deposition

Yupeng Cao, Aiping Cao, Shubing Li, Jianli Tang, Rui Hu, Liyan Shang^*, Yawei Li^*, Kai Jiang, Jinzhong Zhang, Liangqing Zhu, Zhigao Hu

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

The type-II Weyl semimetal T_d-WTe₂ is one of the wonder materials for high-performance optoelectronic devices. We report the self-powered T_d-WTe₂ photodetectors and their bias-dependent photoresponse in the visible region (405, 520, 638 nm) driven by the bulk photovoltaic effect. The device shows the responsivity of 15.8 mAW⁻¹ and detectivity of 5.2 × 10⁹ Jones at 520 nm. Besides, the response time of the WTe₂ photodetector shows the strong bias-voltage dependent property. This work offers a physical reference for understanding the photoresponse process of T_d-WTe₂ photodetectors.

Original language	English
Article number	395201
Journal	Nanotechnology
Volume	35
Issue number	39
DOIs	https://doi.org/10.1088/1361-6528/ad5dbf
State	Published - 23 Sep 2024
Externally published	Yes

Keywords

T-WTe
bias-dependent
chemical vapor deposition
photodetector
self-power

UN SDGs

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

Access to Document

10.1088/1361-6528/ad5dbf

Cite this

@article{c41094a2870f4628b4bf2177ad6f4355,

title = "Bias-dependent photoresponse of Td-WTe2 grown by chemical vapor deposition",

abstract = "The type-II Weyl semimetal Td-WTe2 is one of the wonder materials for high-performance optoelectronic devices. We report the self-powered Td-WTe2 photodetectors and their bias-dependent photoresponse in the visible region (405, 520, 638 nm) driven by the bulk photovoltaic effect. The device shows the responsivity of 15.8 mAW−1 and detectivity of 5.2 × 109 Jones at 520 nm. Besides, the response time of the WTe2 photodetector shows the strong bias-voltage dependent property. This work offers a physical reference for understanding the photoresponse process of Td-WTe2 photodetectors.",

keywords = "T-WTe, bias-dependent, chemical vapor deposition, photodetector, self-power",

author = "Yupeng Cao and Aiping Cao and Shubing Li and Jianli Tang and Rui Hu and Liyan Shang and Yawei Li and Kai Jiang and Jinzhong Zhang and Liangqing Zhu and Zhigao Hu",

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year = "2024",

month = sep,

day = "23",

doi = "10.1088/1361-6528/ad5dbf",

language = "英语",

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T1 - Bias-dependent photoresponse of Td-WTe2 grown by chemical vapor deposition

AU - Cao, Yupeng

AU - Cao, Aiping

AU - Li, Shubing

AU - Tang, Jianli

AU - Hu, Rui

AU - Shang, Liyan

AU - Li, Yawei

AU - Jiang, Kai

AU - Zhang, Jinzhong

AU - Zhu, Liangqing

AU - Hu, Zhigao

PY - 2024/9/23

Y1 - 2024/9/23

N2 - The type-II Weyl semimetal Td-WTe2 is one of the wonder materials for high-performance optoelectronic devices. We report the self-powered Td-WTe2 photodetectors and their bias-dependent photoresponse in the visible region (405, 520, 638 nm) driven by the bulk photovoltaic effect. The device shows the responsivity of 15.8 mAW−1 and detectivity of 5.2 × 109 Jones at 520 nm. Besides, the response time of the WTe2 photodetector shows the strong bias-voltage dependent property. This work offers a physical reference for understanding the photoresponse process of Td-WTe2 photodetectors.

AB - The type-II Weyl semimetal Td-WTe2 is one of the wonder materials for high-performance optoelectronic devices. We report the self-powered Td-WTe2 photodetectors and their bias-dependent photoresponse in the visible region (405, 520, 638 nm) driven by the bulk photovoltaic effect. The device shows the responsivity of 15.8 mAW−1 and detectivity of 5.2 × 109 Jones at 520 nm. Besides, the response time of the WTe2 photodetector shows the strong bias-voltage dependent property. This work offers a physical reference for understanding the photoresponse process of Td-WTe2 photodetectors.

KW - T-WTe

KW - bias-dependent

KW - chemical vapor deposition

KW - photodetector

KW - self-power

UR - https://www.scopus.com/pages/publications/85198649029

U2 - 10.1088/1361-6528/ad5dbf

DO - 10.1088/1361-6528/ad5dbf

M3 - 文章

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SN - 0957-4484

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JO - Nanotechnology

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