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The SERS spectra of some dyes adsorbed on silver sol particles

โœ Scribed by Lixia Li; Chuanpu Liu; Yuezhu Gu; Yongyou Guo; Yongjia Yin

Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
264 KB
Volume
144
Category
Article
ISSN
0009-2614

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โœฆ Synopsis

This paper emphasizes the observation of SERS spectra of aniline violet, aniline red, eriochrome black T and phenolphthalein on silver sol and a qualitative explanation of the relationship between SERS spectra and molecular vibrational modes.

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An excitation profiie investigation of 3,3'diethyl-2.2'-benzthiatrimethinecyanine adsorbed on silver sol shows, for the pure surface enhancement, a relative minimum near thedye absorption (about 550 nm) and a strong increase for yellowred wavelengths, which is esphined qualitatively in terms of an "