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Facile fabrication of heterostructure with p-BiOCl nanoflakes and n-ZnO thin film for UV photodetectors | |
2021-05 | |
发表期刊 | JOURNAL OF SEMICONDUCTORS (IF:4.8[JCR-2023],3.3[5-Year]) |
ISSN | 1674-4926 |
卷号 | 42期号:5 |
发表状态 | 已发表 |
DOI | 10.1088/1674-4926/42/5/052301 |
摘要 | Herein, high-quality n-ZnO film layer on c-sapphire and well-crystallized tetragonal p-BiOCl nanoflakes on Cu foil are prepared, respectively. According to the absorption spectra, the bandgaps of n-ZnO and p-BiOCl are confirmed as similar to 3.3 and similar to 3.5 eV, respectively. Subsequently, a p-BiOCl/n-ZnO heterostructural photodetector is constructed after a facile mechanical bonding and post annealing process. At -5 V bias, the photocurrent of the device under 350 nm irradiation is similar to 800 times higher than that in dark, which indicates its strong UV light response characteristic. However, the on/off ratio of In-ZnO-In photodetector is similar to 20 and the Cu-BiOCl-Cu photodetector depicts very weak UV light response. The heterostructure device also shows a short decay time of 0.95 s, which is much shorter than those of the devices fabricated from pure ZnO thin film and BiOCl nanoflakes. The p-BiOCl/n-ZnO heterojunction photodetector provides a promising pathway to multifunctional UV photodetectors with fast response, high signal-to-noise ratio, and high selectivity. |
关键词 | ZnO thin film BiOCl nanoflakes heterostucture UV photodetector |
收录类别 | EI ; ESCI |
语种 | 英语 |
WOS研究方向 | Physics |
WOS类目 | Physics, Condensed Matter |
WOS记录号 | WOS:000655287600001 |
出版者 | IOP PUBLISHING LTD |
原始文献类型 | Article |
引用统计 | 正在获取...
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文献类型 | 期刊论文 |
条目标识符 | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/126817 |
专题 | 物质科学与技术学院_PI研究组_谢琎组 |
通讯作者 | Fang, Xiaosheng |
作者单位 | 1.Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China; 2.ShanghaiTech Univ, Dept Phys Sci & Technol, Shanghai 200433, Peoples R China |
第一作者单位 | 上海科技大学 |
推荐引用方式 GB/T 7714 | Su, Longxing,Ouyang, Weixin,Fang, Xiaosheng. Facile fabrication of heterostructure with p-BiOCl nanoflakes and n-ZnO thin film for UV photodetectors[J]. JOURNAL OF SEMICONDUCTORS,2021,42(5). |
APA | Su, Longxing,Ouyang, Weixin,&Fang, Xiaosheng.(2021).Facile fabrication of heterostructure with p-BiOCl nanoflakes and n-ZnO thin film for UV photodetectors.JOURNAL OF SEMICONDUCTORS,42(5). |
MLA | Su, Longxing,et al."Facile fabrication of heterostructure with p-BiOCl nanoflakes and n-ZnO thin film for UV photodetectors".JOURNAL OF SEMICONDUCTORS 42.5(2021). |
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