Ultrasensitive Molecular Detection by Improving the Mode Energy of Graphene Plasmons for Surface Enhanced Infrared Absorption Spectroscopy
文献类型：期刊论文
| 作者 | Zheng, Qianying1,2; Tang, Linlong1 ; Yao, Wei1; Yin, Shaoyun1,2; Du, Chunlei1,2
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| 刊名 | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
 |
| 出版日期 | 2019-04-01 |
| 卷号 | 19期号:4页码:2253-2259 |
| 关键词 | Graphene Surface Plasmon Infrared Spectroscopy |
| ISSN号 | 1533-4880 |
| DOI | 10.1166/jnn.2019.16468 |
| 通讯作者 | Yin, Shaoyun() ; Du, Chunlei() |
| 英文摘要 | Ultrasensitive detection of molecules by graphene plasmons based surface enhanced infrared absorption spectroscopy (SEIRAS) has attracted considerable research interest in recent years. However, SEIRAS still suffers from low enhancement. Herein, we investigated the crucial factors that determined the enhancement of graphene plasmons based SEIRAS. Through numerical calculations, it found that the enhancement of SEIRAS can be significantly improved by increasing the absorptance of graphene plasmons and the electron relaxation time of graphene. It revealed that such results were related to the mode energy of graphene plasmons. High absorptance and long electron relaxation time would result in high mode energy, which would in turn induce large local electric field to enhance the SEIRAS signal. Moreover, it showed that the resonant center of a molecular vibrational mode can be accurately extracted from the Rabi splitting spectra obtained by sweeping the Fermi energy of graphene. Our study could provide a guidance to improve the enhancement of graphene plasmons based SEIRAS for ultrasensitive molecular detection. |
| 资助项目 | National Natural Science Foundation of China[61475199] ; National Natural Science Foundation of China[11574308] ; Basic Science and Frontier Technology Research Program of Chongqing[cstc2017jcyjAX0038] ; CAS Western Light Program |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000451787200051 |
| 出版者 | AMER SCIENTIFIC PUBLISHERS |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/7179]  |
| 专题 | 微纳制造与系统集成研究中心 集成光电技术研究中心 |
| 通讯作者 | Yin, Shaoyun; Du, Chunlei |
| 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 |
| 推荐引用方式 GB/T 7714 | Zheng, Qianying,Tang, Linlong,Yao, Wei,et al. Ultrasensitive Molecular Detection by Improving the Mode Energy of Graphene Plasmons for Surface Enhanced Infrared Absorption Spectroscopy[J]. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY,2019,19(4):2253-2259. |
| APA | Zheng, Qianying,Tang, Linlong,Yao, Wei,Yin, Shaoyun,&Du, Chunlei.(2019).Ultrasensitive Molecular Detection by Improving the Mode Energy of Graphene Plasmons for Surface Enhanced Infrared Absorption Spectroscopy.JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY,19(4),2253-2259. |
| MLA | Zheng, Qianying,et al."Ultrasensitive Molecular Detection by Improving the Mode Energy of Graphene Plasmons for Surface Enhanced Infrared Absorption Spectroscopy".JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 19.4(2019):2253-2259. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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