Self-Powered UV-Near Infrared Photodetector Based on Reduced Graphene Oxide/n-Si Vertical Heterojunction
文献类型：期刊论文
| 作者 | Li, GH(李光辉); Liu, L; Wu, G(武观); Chen, W(陈韦); Qin, SJ(秦双娇); Wang, Y; Zhang, T(张珽) |
| 刊名 | SMALL
 |
| 出版日期 | 2016 |
| 卷号 | 12期号:36 |
| 通讯作者 | Zhang, T(张珽) ; Wang, Y |
| 英文摘要 | A novel self-powered photodetector based on reduced graphene oxide (rGO)/n-Si p-n vertical heterojunction with high sensitivity and fast response time is presented. The photodetector contains a p-n vertical heterojunction between a drop-casted rGO thin film and n-Si. Contacts between the semiconductor layer (rGO, n-Si) and source-drain Ti/Au electrodes allow efficient transfer of photogenerated charge carriers. The self-powered UV-near infrared photodetector shows high sensitivity toward a spectrum of light from 365 to 1200 nm. Under the 600 nm illumination (0.81 mW cm(-2)), the device has a photoresponsivity of 1.52 A W-1, with fast response and recover time (2 ms and 3.7 ms), and the ON/OFF ratios exceed 10 4 when the power density reaches approximate to 2.5 mW cm(-2). The high photoresponse primarily arises from the built-in electric field formed at the interface of n-Si and rGO film. The effect of rGO thickness, rGO reduction level, and layout of rGO/n-Si effective contact area on device performance are also systematically investigated. |
| 关键词[WOS] | JUNCTION SOLAR-CELLS ; HIGH RESPONSIVITY ; ROOM-TEMPERATURE ; EPITAXIAL GRAPHENE ; BROAD-BAND ; ULTRAVIOLET ; PHOTOTRANSISTORS ; PHOTORESPONSE ; FILMS ; NANOPARTICLES |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000384684500013 |
| 源URL | [http://ir.sinano.ac.cn/handle/332007/4815]  |
| 专题 | 苏州纳米技术与纳米仿生研究所_纳米研究国际实验室_张珽团队 |
| 推荐引用方式 GB/T 7714 | Li, GH,Liu, L,Wu, G,et al. Self-Powered UV-Near Infrared Photodetector Based on Reduced Graphene Oxide/n-Si Vertical Heterojunction[J]. SMALL,2016,12(36). |
| APA | Li, GH.,Liu, L.,Wu, G.,Chen, W.,Qin, SJ.,...&Zhang, T.(2016).Self-Powered UV-Near Infrared Photodetector Based on Reduced Graphene Oxide/n-Si Vertical Heterojunction.SMALL,12(36). |
| MLA | Li, GH,et al."Self-Powered UV-Near Infrared Photodetector Based on Reduced Graphene Oxide/n-Si Vertical Heterojunction".SMALL 12.36(2016). |
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