Surface-enhanced resonance hyper-Raman scattering and surface-enhanced resonance Raman scattering of dyes adsorbed on silver electrode and silver colloid: a comparison study

Autor:	Wuhu Li, Nai Teng Yu, Xiaoyuan Li
Rok vydání:	1999
Předmět:	Pyrazine Scattering Analytical chemistry General Physics and Astronomy Resonance Photochemistry chemistry.chemical_compound symbols.namesake Colloid Adsorption chemistry Electrode symbols Crystal violet Physical and Theoretical Chemistry Raman scattering
Zdroj:	Chemical Physics Letters. 312:28-36
ISSN:	0009-2614
DOI:	10.1016/s0009-2614(99)00892-1
Popis:	Surface-enhanced resonance hyper-Raman scattering (SERHRS) and surface-enhanced resonance Raman scattering (SERRS) of three dyes, rhodamine 6G, crystal violet and basic fuchsin, are studied comparatively on electrochemically roughened silver electrode and silver colloid, respectively. All three dyes show a better SERHRS efficiency on the silver colloid than on the silver electrode, a phenomenon just opposite to what we have recently observed for pyridine and pyrazine [Chem. Phys. Lett. 305 (1999) 303]. These results suggest that the efficiency of SEHRS depends not only on the active surfaces employed (colloidal metals versus roughened electrodes) but also on the types of the adsorbed molecules.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e423c0e3d7d4d7280e9db1ed899fcb0b https://doi.org/10.1016/s0009-2614(99)00892-1 Zobrazit plný text záznamu Full Text from ScienceDirect