Ultrahigh-Sensitivity and Fast-Speed Solar-Blind Ultraviolet Photodetector Based on a Broken-Gap van der Waals Heterodiode
文献类型：期刊论文
| 作者 | 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 |
| 刊名 | Acs Applied Materials & Interfaces
 |
| 出版日期 | 2023 |
| 卷号 | 15期号:11页码:14513-14522 |
| ISSN号 | 1944-8244 |
| DOI | 10.1021/acsami.2c20546 |
| 英文摘要 | 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. |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| 源URL | [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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