Study of the Optoelectronic Properties of Ultraviolet Photodetectors Based on Zn‐Doped CuGaO 2 Nanoplate/ZnO Nanowire Heterojunctions

作者：Xiaoyi Wang, Hongda Wu, Guanxin Wang, Xiaohui Ma, Yingtian Xu, He Zhang, Liang Jin, Linlin Shi, Yonggang Zou, Jingzhi Yin, Dongxu Zhao · 发表于：physica status solidi (b) · 年份：2020 · DOI：10.1002/pssb.201900684 · 被引用次数：14 · 研究领域：ZnO doping and properties、Ga2O3 and related materials、Gas Sensing Nanomaterials and Sensors

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.