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Author Hugot-Le Goff, A. ♦ Falaras, P.
Sponsorship USDOE
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CHEMISTRY ♦ SOLAR ENERGY ♦ TITANIUM OXIDES ♦ SORPTIVE PROPERTIES ♦ DYES ♦ RAMAN SPECTRA ♦ RUTHENIUM COMPOUNDS ♦ ORGANOMETALLIC COMPOUNDS ♦ ELECTROCHEMISTRY ♦ PHOTOCHEMISTRY ♦ SOLAR ENERGY CONVERSION
Abstract The adsorption of dye monolayers on nanocrystalline titanium dioxide surfaces leads to high photoelectrochemical yields in the visible range, which gives a renewal of interest in the use of this system in solar energy. A high resonance effect in these dyes enabled the attainment of the Raman spectra of the adsorbed molecules; further, a new series of Raman peaks appeared during the polarization of TiO{sub 2} modified by Ru-bipyridinium compounds in the presence of an electron donor. They correspond to a molecular configuration in which an electron is exchanged during the measurement between a particular ligand and a substrate titanium atom. This configuration appears then to be similar to the short-lived excited state of the metal ligand charge-transfer complex (MLCT).
ISSN 00134651
Educational Use Research
Learning Resource Type Article
Publisher Date 1995-03-01
Publisher Place United States
Journal Journal of the Electrochemical Society
Volume Number 142
Issue Number 3


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