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Study of the Optoelectronic Properties of Ultraviolet Photodetectors Based on Zn‐Doped CuGaO 2 Nanoplate/ZnO Nanowire Heterojunctions
Author(s) -
Wang Xiaoyi,
Wu Hongda,
Wang Guanxin,
Ma Xiaohui,
Xu Yingtian,
Zhang He,
Jin Liang,
Shi Linlin,
Zou Yonggang,
Yin Jingzhi,
Zhao Dongxu
Publication year - 2020
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201900684
Subject(s) - heterojunction , materials science , responsivity , ultraviolet , photodetector , nanowire , optoelectronics , doping , nanostructure , nanotechnology , nanometre , composite material
This study reports ultraviolet (UV) photodetectors based on CuGaO 2 (CGO) nanoplates (NPs) and Zn‐doped CGO (CZGO) NP/ZnO nanowire (NW) heterojunctions. The vertical arrays of ZnO NWs are uniformly grown on the surface of hexagonal CZGO NPs and form a high‐density p–n junction. The heterojunctions have better optoelectronic performance parameters than pure CGO NPs. Especially, the responsivity value of CZGO NP/ZnO NW heterojunctions reaches 0.12 A W −1 , and the photo‐to‐current ratio is estimated to be 4.5. This work offers a new idea for the rational design of optoelectronic devices from the synergetic effect of p‐type CZGO NPs and n‐type nanostructures.