High performance Cu<sub>2</sub>O film/ZnO nanowires self-powered photodetector by electrochemical deposition

Deshuang Guo; Wei Li; Dengkui Wang; Bingheng Meng; Dan Fang; Zhipeng Wei

doi:10.1088/1674-1056/aba610

Chinese Physics B, Volume. 29, Issue 9, (2020)

High performance Cu₂O film/ZnO nanowires self-powered photodetector by electrochemical deposition

Deshuang Guo, Wei Li, Dengkui Wang^†, Bingheng Meng, Dan Fang, and Zhipeng Wei

State Key Laboratory of High Powder Semiconductor Lasers, Changchun University of Science and Technology, Changchun 130022, China

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Fig. 1. (a) The SEM image and EDS of Cu₂O film. (b) The SEM image and EDS of ZnO NWs. (c) The cross section SEM image of Cu₂O/ZnO heterojunction.

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Fig. 2. (a) The XRD patterns and (b) UV–visible spectra of Cu₂O film, ZnO NWs, and Cu₂O/ZnO heterojunction.

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Fig. 3. (a) The I–V curves of the Cu₂O film and Cu₂O/ZnO heterojunction, the insert is a magnified image of Cu₂O/ZnO heterojunction near the origin. (b) Spectral responsivity of the Cu₂O/ZnO photodetector at 0 V bias.

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Fig. 4. Energy band diagram of Cu₂O/ZnO photodetector.

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Fig. 5. (a) Spectral response of the Cu₂O/ZnO photodetector at 2 V bias. (b) The time-resolved current curves of Cu₂O/ZnO photodetector and Cu₂O photodetector.

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Table 1. A comparison of the performances between this work and the state-of-the-art Cu₂O-based photodetectors.

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Table 1. A comparison of the performances between this work and the state-of-the-art Cu₂O-based photodetectors.

Materials	Wavelength/nm	Responsivity/(μA/W)	EQE/%	Ref.
ZnO/Cu₂O films			1.43	[24]
Cu₂O nanorods		8		[25]
Cu₂O film-Au NPs	532	23		[26]
Cu₂O/Cu	590	300		[27]
Nanoscale ZnO/Cu₂O films		280		[12]
ZnO/Cu₂O core–shell NWs		7.67		[13]
AZO/ZnO/Cu₂O films			0.24	[14]
Cu₂O film/ZnO NWs	596	288	2.4	this work

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Deshuang Guo, Wei Li, Dengkui Wang, Bingheng Meng, Dan Fang, Zhipeng Wei. High performance Cu₂O film/ZnO nanowires self-powered photodetector by electrochemical deposition[J]. Chinese Physics B, 2020, 29(9):

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Paper Information

Received: Jun. 9, 2020

Accepted: --

Published Online: Apr. 29, 2021

The Author Email: Wang Dengkui (fangdan19822011@163.com)

DOI:10.1088/1674-1056/aba610

Topics

Nuclear physics

Particles and fields

Particle and nuclear astrophysics and cosmology

Table 1. A comparison of the performances between this work and the state-of-the-art Cu2O-based photodetectors.

Table 1. A comparison of the performances between this work and the state-of-the-art Cu2O-based photodetectors.

Table 1. A comparison of the performances between this work and the state-of-the-art Cu₂O-based photodetectors.

Table 1. A comparison of the performances between this work and the state-of-the-art Cu₂O-based photodetectors.