Performance enhancement of a self-powered solar-blind UV photodetector based on ZnGa2O4/Si heterojunction via interface pyroelectric effect

doi:10.1063/5.0049747

CIOMP OpenIR

	Performance enhancement of a self-powered solar-blind UV photodetector based on ZnGa2O4/Si heterojunction via interface pyroelectric effect
	D. Han; K. Liu; X. Chen; B. Li; T. Zhai; L. Liu and D. Shen
	2021
发表期刊	Applied Physics Letters
ISSN	36951
卷号	118 期号:25
摘要	The photodetectors based on the wide bandgap semiconductor (WBS)/Si heterojunction have attracted more and more attention in recent years due to their excellent photoelectric characteristics and easy integration capabilities. In this work, we have demonstrated a self-powered solar-blind ultraviolet (UV) photodetector based on the ZnGa2O4/Si heterojunction. A typical rectification characteristic with a rectification ratio exceeding 103 within 5V can be obtained. At 0V bias, the 3 dB cutoff wavelength of 255nm and the UV-visible rejection ratio of 3102 show that the device has excellent self-powered solar-blind UV detection performance. In addition, the responsivity and the response speed of ZnGa2O4/Si heterojunction can be efficiently enhanced by a transient spike current at 0V bias when turning on and off the 254nm UV light. The interface pyroelectric effect of the ZnGa2O4 film should be responsible for this transient spike photocurrent phenomenon. Our findings in this work pave a feasible way to realize high-performance WBS/Si heterojunction self-powered solar-blind photodetectors. 2021 Author(s).
DOI	10.1063/5.0049747
URL	查看原文
收录类别	SCI ; EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/65524
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	D. Han,K. Liu,X. Chen,et al. Performance enhancement of a self-powered solar-blind UV photodetector based on ZnGa2O4/Si heterojunction via interface pyroelectric effect[J]. Applied Physics Letters,2021,118(25).
APA	D. Han,K. Liu,X. Chen,B. Li,T. Zhai,&L. Liu and D. Shen.(2021).Performance enhancement of a self-powered solar-blind UV photodetector based on ZnGa2O4/Si heterojunction via interface pyroelectric effect.Applied Physics Letters,118(25).
MLA	D. Han,et al."Performance enhancement of a self-powered solar-blind UV photodetector based on ZnGa2O4/Si heterojunction via interface pyroelectric effect".Applied Physics Letters 118.25(2021).

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Performance enhancem（2523KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载