Dual-Color Photodetection Based on Speed-Differentiated Photoresponse with High Photogain
文献类型：期刊论文
| 作者 | Yang, Qi1,2; Shen, Jun1,2 ; Jiang, Hao1; Leng, Chongqian1; Zhang, Zhisheng1; Nie, Changbin1; Huang, Deping1; Li, Xin1,2; Feng, Shuanglong1,2; Zhou, Dahua1
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| 刊名 | ACS PHOTONICS
 |
| 出版日期 | 2021-04-21 |
| 卷号 | 8期号:4页码:1027-1033 |
| ISSN号 | 2330-4022 |
| 关键词 | photodetectors graphene photogain dual-color extraction |
| DOI | 10.1021/acsphotonics.1c00136 |
| 通讯作者 | Shen, Jun(shenjun@cigit.ac.cn) |
| 英文摘要 | Dual-color photodetection can increase detection accuracy due to the specific information from different wavelengths. Traditional dual-color detectors are based on double optical modules or photovoltage devices, which suffer from huge system weight or low gain. In this Letter, a novel dual-color photodetector with Ge/Graphene/CdS sandwich profile is proposed. While visible and infrared light is mainly absorbed by the CdS and Ge layers, respectively, photoelectrical signals from two wavelengths both conducted by graphene are extracted on time-sequence with different sampling frequencies. Based on a tailored interface process and epitaxy InGaAs instead of bulk Ge layer, the difference in response speed more than 3 orders of magnitude (76 kHz/14 Hz) was realized. Due to the photogating effect, the high gain was obtained for both wavelengths, and a photoresponse enhancement originated from the overlapping of local photogating field is observed. The device provided a new solution for high-gain and CMOS-compatible dual-color photodetection. |
| 资助项目 | National Natural Science Foundation of China[61705229] ; National Natural Science Foundation of China[51902306] ; National Natural Science Foundation of China[51702315] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2018416] ; Natural Science Foundation Project of Chongqing CSTC[cstc2019jcyjjqX0017] ; Natural Science Foundation Project of Chongqing CSTC[cstc2017zdcy-zdyfX00078] ; Natural Science Foundation Project of Chongqing CSTC[cstc2017jcyjAX0384] ; Natural Science Foundation Project of Chongqing CSTC[cstc2019jcyj-xfkxX0006] ; National Key R&D Program of China[2017YFE0131900] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Optics ; Physics |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| WOS记录号 | WOS:000643600400011 |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/13442]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Shen, Jun |
| 作者单位 | 1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Qi,Shen, Jun,Jiang, Hao,et al. Dual-Color Photodetection Based on Speed-Differentiated Photoresponse with High Photogain[J]. ACS PHOTONICS,2021,8(4):1027-1033. |
| APA | Yang, Qi.,Shen, Jun.,Jiang, Hao.,Leng, Chongqian.,Zhang, Zhisheng.,...&Wei, Xingzhan.(2021).Dual-Color Photodetection Based on Speed-Differentiated Photoresponse with High Photogain.ACS PHOTONICS,8(4),1027-1033. |
| MLA | Yang, Qi,et al."Dual-Color Photodetection Based on Speed-Differentiated Photoresponse with High Photogain".ACS PHOTONICS 8.4(2021):1027-1033. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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