Direct visual evidence for the chemical mechanism of surface-enhanced resonance Raman scattering via charge transfer
(2009) In Journal of Raman Spectroscopy 40(2). p.137-143- Abstract
- 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... (More)
- 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. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1404667
- author
- Sun, Mengtao LU ; Liu, Shasha ; Chen, Maodu and Xu, Hongxing LU
- organization
- publishing date
- 2009
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- intracluster charge redistribution, density, charge difference, charge transfer, SERRS, chemical enhancement
- in
- Journal of Raman Spectroscopy
- volume
- 40
- issue
- 2
- pages
- 137 - 143
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- wos:000263981000006
- scopus:60249090942
- ISSN
- 1097-4555
- DOI
- 10.1002/jrs.2093
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Chemical Physics (S) (011001060), Solid State Physics (011013006)
- id
- 5b12bc72-41a7-46c5-bc88-b39453439080 (old id 1404667)
- date added to LUP
- 2016-04-01 15:02:29
- date last changed
- 2022-03-22 03:14:27
@article{5b12bc72-41a7-46c5-bc88-b39453439080,
abstract = {{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.}},
author = {{Sun, Mengtao and Liu, Shasha and Chen, Maodu and Xu, Hongxing}},
issn = {{1097-4555}},
keywords = {{intracluster charge redistribution; density; charge difference; charge transfer; SERRS; chemical enhancement}},
language = {{eng}},
number = {{2}},
pages = {{137--143}},
publisher = {{John Wiley & Sons Inc.}},
series = {{Journal of Raman Spectroscopy}},
title = {{Direct visual evidence for the chemical mechanism of surface-enhanced resonance Raman scattering via charge transfer}},
url = {{http://dx.doi.org/10.1002/jrs.2093}},
doi = {{10.1002/jrs.2093}},
volume = {{40}},
year = {{2009}},
}