KMS Chongqing Institute of Green and Intelligent Technology, CAS
| Distinct photoresponse in graphene induced by laser irradiation | |
Wang, Wen Hui; Nan, Hai Yan; Liu, Qi; Liang, Zheng; Yu, Zhi Hao; Liu, Feng Yuan; Hu, Wei Da; Zhang, Wei ; Wang, Xin Ran; Ni, Zhen Hua
| |
| 2015 | |
| 摘要 | The graphene-based photodetector with tunable p-p(+)-p junctions was fabricated through a simple laser irradiation process. Distinct photoresponse was observed at the graphene (G)-laser irradiated graphene (LIG) junction by scanning photocurrent measurements, and its magnitude can be modulated as a result of a positive correlation between the photocurrent and doping concentration in LIG region. Detailed investigation suggests that the photo-thermoelectric effect, instead of the photovoltaic effect, dominates the photocurrent generation at the G-LIG junctions. Such a simple and low-cost technique offers an alternative way for the fabrication of graphene-based optoelectronic devices. (C) 2015 AIP Publishing LLC. |
| DOI | 10.1063/1.4906203 |
| 发表期刊 | APPLIED PHYSICS LETTERS
 |
| ISSN | 0003-6951 |
| 卷号 | 106期号:2 |
| 通讯作者 | Ni, ZH (reprint author), Southeast Univ, Dept Phys, Nanjing 211189, Jiangsu, Peoples R China. |
| 收录类别 | SCI |
| WOS记录号 | WOS:000348054700021 |
| 语种 | 英语 |
