中国科学院长春光学精密机械与物理研究所

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	Ultrahigh-Sensitivity and Fast-Speed Solar-Blind Ultraviolet Photodetector Based on a Broken-Gap van der Waals Heterodiode
	L. Zhang, Z. H. Wei, X. X. Wang, L. Y. Zhang, Y. Wang, C. Xie, T. Han, F. Li, W. Luo, D. X. Zhao, M. S. Long and L. Shan
	2023
发表期刊	Acs Applied Materials & Interfaces
ISSN	1944-8244
卷号	15期号:11页码:14513-14522
摘要	Broad-bandgap semiconductor-based solar-blind ultraviolet (SBUV) photodetectors have attracted considerable research interest because of their broad applications in missile plume tracking, flame detectors, environmental monitoring, and optical communications due to their solar-blind nature and high sensitivity with low background radiation. Owing to its high light absorption coefficient, abundance, and wide tunable bandgap of 2-2.6 eV, tin disulfide (SnS2) has emerged as one of the most promising compounds for application in UV-visible optoelectronic devices. However, SnS2 UV detectors have some undesirable properties such as slow response speed, high current noise level, and low specific detectivity. This study reports a metal mirror -enhanced Ta0.01W0.99Se2/SnS2 (TWS) van der Waals heterodiode-based SBUV photodetector with an ultrahigh photoresponsivity (R) of similar to 1.85 x 104 AW-1 and a fast speed with rising time (tau r) of 3.3 mu s and decay time (tau d) of 3.4 mu s. Notably, the TWS heterodiode device exhibits a significantly low noise equivalent power of similar to 1.02 x 10-18 W Hz-1/2 and a high specific detectivity of similar to 3.65 x 1014 cm Hz1/2 W-1. This study provides an alternative method for designing fast-speed SBUV photodetectors with enormous potential in applications.
DOI	10.1021/acsami.2c20546
URL	查看原文
收录类别	sci
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/68182
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	L. Zhang, Z. H. Wei, X. X. Wang, L. Y. Zhang, Y. Wang, C. Xie, T. Han, F. Li, W. Luo, D. X. Zhao, M. S. Long and L. Shan. Ultrahigh-Sensitivity and Fast-Speed Solar-Blind Ultraviolet Photodetector Based on a Broken-Gap van der Waals Heterodiode[J]. Acs Applied Materials & Interfaces,2023,15(11):14513-14522.
APA	L. Zhang, Z. H. Wei, X. X. Wang, L. Y. Zhang, Y. Wang, C. Xie, T. Han, F. Li, W. Luo, D. X. Zhao, M. S. Long and L. Shan.(2023).Ultrahigh-Sensitivity and Fast-Speed Solar-Blind Ultraviolet Photodetector Based on a Broken-Gap van der Waals Heterodiode.Acs Applied Materials & Interfaces,15(11),14513-14522.
MLA	L. Zhang, Z. H. Wei, X. X. Wang, L. Y. Zhang, Y. Wang, C. Xie, T. Han, F. Li, W. Luo, D. X. Zhao, M. S. Long and L. Shan."Ultrahigh-Sensitivity and Fast-Speed Solar-Blind Ultraviolet Photodetector Based on a Broken-Gap van der Waals Heterodiode".Acs Applied Materials & Interfaces 15.11(2023):14513-14522.

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