The Scaling Effect of Graphene-Based Hybrid Photodetectors

2018 4th International Conference on Environmental Science and Material Application

生态环境科学;材料科学

Wu, Qiming^1^2 ; Shen, Jun^1^2 ; Wang, Huabin^1^2

Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, China^1

University of Chinese Academy of Sciences, Beijing, China^2

关键词: Channel length;    Channel widths;    Different sizes;    Hybrid photo detectors;    Image applications;    Scaling effects;    Weak lights;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/252/2/022123/pdf
DOI  :  10.1088/1755-1315/252/2/022123

来源: IOP

【 摘 要 】

Graphene-based hybrid photo detectors are promising for weak-light detection with high photo gain. In this paper, we focused on the details of the scaling effect on grapheme-based hybrid photo detectors. By designing a series of devices with different sizes from 10∗10μm2 to 100∗100μm2, we found that the photocurrent generally decreases with increased channel length but decreased channel width. Our study would be useful for clarifying the real potential of photo gating effect in image applications.