Direct visual evidence for the chemical mechanism of surface-enhanced resonance Raman scattering via charge transfer
文献类型：期刊论文
| 作者 | Sun, MT ; Liu, SS ; Chen, MD ; Xu, HX |
| 刊名 | JOURNAL OF RAMAN SPECTROSCOPY
 |
| 出版日期 | 2009 |
| 卷号 | 40期号:2页码:137 |
| 关键词 | CONDON ACTIVE VIBRATIONS AB-INITIO ELECTRONIC-STRUCTURE SILVER ELECTRODE SERS SPECTRA PYRIDINE SPECTROSCOPY DENSITY CLUSTER ADSORPTION |
| ISSN号 | 0377-0486 |
| 通讯作者 | Sun, MT: Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | We describe the chemical and electromagnetic enhancements of surface-enhanced resonance Raman scattering (SERRS) for the pyridine molecule absorbed on silver clusters, in which different incident wavelength regions are dominated by different enhancement mechanisms. Through visualization we theoretically investigate the charge transfer (CT) between the molecule and the metal cluster, and the charge redistribution (CR) within the metal on the electronic intracluster collective oscillation excitation (EICOE). The CT between the metal and the molecule in the molecule-metal complex is considered as an evidence for chemical enhancement to SERRS. CR within the metal on EICOE is considered as an evidence for the electromagnetic enhancement by collective plasmons. For the incident wavelength from 300 to 1000 nm, the visualized method of charge difference density can classify the different wavelength regions for chemical and electromagnetic enhancement, which are consistent with the formal fragmented experimental studies. Copyright (C) 2008 John Wiley & Sons, Ltd. |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [10625418, 10604012, 20703064]; Sino-Swedish Collaborations on Nanophotonics and Nanoelectronics [2006DFBO2020]; National Basic Research Project of China [2007CB936801, 2007CB936804]; 'Bairen' projects of CAS |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/36083]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Sun, MT,Liu, SS,Chen, MD,et al. Direct visual evidence for the chemical mechanism of surface-enhanced resonance Raman scattering via charge transfer[J]. JOURNAL OF RAMAN SPECTROSCOPY,2009,40(2):137. |
| APA | Sun, MT,Liu, SS,Chen, MD,&Xu, HX.(2009).Direct visual evidence for the chemical mechanism of surface-enhanced resonance Raman scattering via charge transfer.JOURNAL OF RAMAN SPECTROSCOPY,40(2),137. |
| MLA | Sun, MT,et al."Direct visual evidence for the chemical mechanism of surface-enhanced resonance Raman scattering via charge transfer".JOURNAL OF RAMAN SPECTROSCOPY 40.2(2009):137. |
入库方式： OAI收割
来源：物理研究所
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