SERS OF CYANINE DYES ADSORBED ON THE SURFACE OF SILVER ELECTRODE

doi:10.7517/j.issn.1674-0475.1989.03.20

Imaging Science and Photochemistry ›› 1989, Vol. 7 ›› Issue (3): 20-26.DOI: 10.7517/j.issn.1674-0475.1989.03.20

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SERS OF CYANINE DYES ADSORBED ON THE SURFACE OF SILVER ELECTRODE

WANG HUI-TAO¹, HUANG DE-YIN¹, Yu ZU-HAN², YAO WEN-HUA²

1. Research Institute of Speciality Chemicals, East China University of Chemical Technology, Shanghai 201107, P. R. China;
2. Chemistry Department, Fudan University, Shanghai 201903, P. R. China

Received:1988-02-15 Revised:1988-09-23 Online:1989-08-20 Published:1989-08-20

Abstract

Abstract: Two model systems, Ag/NaBr+Dye-798 and Ag/NaBr+Dye-1556 have been used in this work. The orientation of the dye molecules, adsorbed on the surface of silver electrode, the stabilization of adsorption, and the competition between two adsorbed dyes were studied by the method of SERS (Surface Enhanced Raman Spectra).By the comparison of Raman Spectra of solid dyes and SERS of adsorbed dyes, it was found that those two dyes have different adsorption behaviors on the surface of silver electrode, and the molecules of two dyes are almost perpendicular to the electrode surface.

Key words: SERS, Raman Spectra, Cyanine Dye, Spectral Sensitization, Silver Halide

WANG HUI-TAO, HUANG DE-YIN, Yu ZU-HAN, YAO WEN-HUA. SERS OF CYANINE DYES ADSORBED ON THE SURFACE OF SILVER ELECTRODE[J]. Imaging Science and Photochemistry, 1989, 7(3): 20-26.

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SERS OF CYANINE DYES ADSORBED ON THE SURFACE OF SILVER ELECTRODE

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