Surface-enhanced Raman scattering of dipolar molecules by the graphene Fermi surface modulation with different dipole moments
文献类型：期刊论文
| 作者 | Zhang, Mingjia1 ; Leng, Yandan1,2; Huang, Jing1; Yu, Jiaojiao1,2; Lan, Zhenggang1; Huang, Changshui1
|
| 刊名 | APPLIED SURFACE SCIENCE
 |
| 出版日期 | 2017-12-15 |
| 卷号 | 425页码:654-662 |
| 关键词 | Surface-enhanced Raman Scattering Graphene Dipole Moment Chromophore Fermi Surface |
| DOI | 10.1016/j.apsusc.2017.07.015 |
| 文献子类 | Article |
| 英文摘要 | We report the modulation of Raman scattering spectrum of chromophore/graphene hybrids by tunning the molecular polarization with different terminal groups (methyl, methoxy, nitrile, and two nitros). Based on the density functional theory, the specific dipole moment values of the chromophore molecules are calculated. An obvious surface-enhanced Raman scattering (SERS) was observed and the scattering intensity of molecule increases with enlarged dipole moment. According to the analysis of G band Raman shifts of graphene, the enhancement of the Raman signal can be attributed to strong electronic coupling between graphene and chromophore, which is closely related with the modulation of graphene Fermi surface by changing the dipole moment of the molecule. Besides, the optimization of the ground state geometry and the binding energy of the hybrids were also calculated with the Density Functional Based Tight Bonding (DFTB) method, which confirms that the enhanced Raman scattering of molecules on graphene arises from the improved energy level matching between graphene Fermi surface and molecular band, further providing a new way to design novel SERS devices. (C) 2017 Elsevier B.V. All rights reserved. |
| WOS关键词 | CARBON NANOTUBE ; SUBSTRATE ; HYBRIDS ; FIELD |
| WOS研究方向 | Chemistry ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000410609400080 |
| 资助机构 | "Hundred Talents Program" of the Chinese Academy of Sciences ; National Natural Science Foundation of China Youth Science Fund Project(21301184) ; Natural Science Foundation of Shandong Province (China)(JQ201504) |
| 源URL | [http://ir.qibebt.ac.cn/handle/337004/9581]  |
| 专题 | 青岛生物能源与过程研究所_新型能源碳素材料团队 |
| 作者单位 | 1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Mingjia,Leng, Yandan,Huang, Jing,et al. Surface-enhanced Raman scattering of dipolar molecules by the graphene Fermi surface modulation with different dipole moments[J]. APPLIED SURFACE SCIENCE,2017,425:654-662. |
| APA | Zhang, Mingjia,Leng, Yandan,Huang, Jing,Yu, Jiaojiao,Lan, Zhenggang,&Huang, Changshui.(2017).Surface-enhanced Raman scattering of dipolar molecules by the graphene Fermi surface modulation with different dipole moments.APPLIED SURFACE SCIENCE,425,654-662. |
| MLA | Zhang, Mingjia,et al."Surface-enhanced Raman scattering of dipolar molecules by the graphene Fermi surface modulation with different dipole moments".APPLIED SURFACE SCIENCE 425(2017):654-662. |
入库方式： OAI收割
来源：青岛生物能源与过程研究所
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