| 光谱学与光谱分析 |
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| Study on Surface-Enhanced Raman Spectroscopy of C60 Films on Ag Electrodes |
| SUN Yu-hua, BAO Fang, GU Wei, YAO Jian-lin, GU Ren-ao* |
| Department of Chemistry, Suzhou University, Suzhou 215123, China |
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Abstract The thin films of C60 on Ag electrodes were studied by in situ surface-enhanced Raman spectroscopy (SERS) in acetonitrile solution and water solution respectively. The influence of C60 from bulk solution on the SERS of the adsorbed C60 was removed by pre-forming C60 films on the electrode. The results indicate that the split of some relevant Raman bands was attributed to the loss of vibrational degeneracy due to the lowering of the C60 molecular symmetry. Moreover, the surface selection rule was extended because of the influence of the surface electromagnetic field in which some forbidden modes became Raman-active. The results were similar to that of C60 molecules adsorbed on Ag electrode in the solution of C60. A weak band at about 348 and 311 cm-1 was observed for the C60 films in acetonitrile solution and in aqueous solution respectively, which could be assigned to the interaction of C60 and Ag electrode surface.
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Received: 2006-02-08
Accepted: 2006-05-16
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Corresponding Authors:
GU Ren-ao
E-mail: ragu@suda.edu.cn
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| Cite this article: |
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SUN Yu-hua,BAO Fang,GU Wei, et al. Study on Surface-Enhanced Raman Spectroscopy of C60 Films on Ag Electrodes[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(04): 707-710.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2007/V27/I04/707 |
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