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SERS EXCITATION PROFILES OF COADSORBED MOLECULES OF O-NITROBENZOIC ACID AND PYRIDINE |
| GAO Xiaoping;LIU Fanzhen*;ZHUANG Weiping;ZHANG Pengxiang |
| Institute of Physics, Academia Sinica, Beijing
*Department of Modern Chemistry, University of Sciences and Technique of China, Hefei
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| Cite this article: |
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GAO Xiaoping, LIU Fanzhen, ZHUANG Weiping et al 1986 Chin. Phys. Lett. 3 477-480 |
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Abstract It is proposed in this paper that the comparison experiments on SERS excitation profiles of coadsorbed molecules can provide a critical test of the nature of SERS resonance mechanisms. O- nitrobenzoic acid and pyridine coadsorbed on Ag sol have different resonant maxima in their SERS excitation profiles. Unlike usual excitation experiments on SERS, the results show that there must be a non-electromagnetic enhancement mechanism on SERS.
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Published: 01 October 1986
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