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Catalyst-free growth of dense gamma-In2Se3 nanosheet arrays and their application in photoelectric detectors
Kou, Yumeng1; Chen, Lida1; Mu, Jianglong1; Miao, Hui1; Wang, Yishan2; Hu, Xiaoyun1; Teng, Feng1
作者部门瞬态光学研究室
2020-05-08
发表期刊NANOTECHNOLOGY
ISSN0957-4484;1361-6528
卷号31期号:19
产权排序2
摘要

In this work, a dense gamma-In2Se3 nanosheet array has been fabricated using the chemical vapor deposition method under atmospheric pressure. Compared with crystal silicon, the photodetector based on the gamma-In2Se3/p-Si heterojunction exhibits a high responsivity (96.7 mA W-1) at the near-infrared region, a presentable current on/off ratio (similar to 1000) and excellent detectivity (2.03 x 10(12) jones). Simultaneously, the obtained photodetector demonstrated a fast response speed (0.15 ms/0.5 ms) and a broadband sensitive wavelength from ultraviolet (340 nm) to near-infrared (1020 nm). The photoelectric experimental data of the device shows that its high performance is attributed to the high-light absorption capacity of the material, the rational energy band structures of gamma-In2Se3 and p-Si, and the effective separation of photo-generated carriers caused by the formed type-II heterojunction. Our work provides the primary experimental basis for the photodetection application of the gamma-In2Se3 nanostructure.

关键词photodetector In2Se3 nanosheets array response speed
DOI10.1088/1361-6528/ab674a
收录类别SCI
语种英语
WOS记录号WOS:000537540600001
出版者IOP PUBLISHING LTD
引用统计
被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.opt.ac.cn/handle/181661/93540
专题瞬态光学研究室
通讯作者Hu, Xiaoyun
作者单位1.Northwest Univ, Sch Phys, Xian 710069, Peoples R China
2.Chinese Acad Sci, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China
推荐引用方式
GB/T 7714
Kou, Yumeng,Chen, Lida,Mu, Jianglong,et al. Catalyst-free growth of dense gamma-In2Se3 nanosheet arrays and their application in photoelectric detectors[J]. NANOTECHNOLOGY,2020,31(19).
APA Kou, Yumeng.,Chen, Lida.,Mu, Jianglong.,Miao, Hui.,Wang, Yishan.,...&Teng, Feng.(2020).Catalyst-free growth of dense gamma-In2Se3 nanosheet arrays and their application in photoelectric detectors.NANOTECHNOLOGY,31(19).
MLA Kou, Yumeng,et al."Catalyst-free growth of dense gamma-In2Se3 nanosheet arrays and their application in photoelectric detectors".NANOTECHNOLOGY 31.19(2020).
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