Spectroelectrochemical analysis of the thionine transfer coupled to a photoinduced chemical reaction across the water /1,2 dichloroethane interface

RA IGLESIAS; F MORA; AM BARUZZI

JOURNAL OF ELECTROANALYTICAL CHEMISTRY

Elsevier

Año: 2005 vol. 585 p. 113 - 113

0022-0728

span lang="en" style="FONT-SIZE: 12pt; FONT-FAMILY: "Times New Roman"; mso-ansi-language: EN-US; mso-fareast-font-family: "Times New Roman"; mso-fareast-language: ES; mso-bidi-language: AR-SA">Thionine (Thio+) is a dye used in photogalvanic and dye-sensitized solar cells to convert light into chemical energy. The photophysical properties of this cell are strongly affected by aggregate formation and polymerization of thionine because the monomer is the photoactive species. In this paper, we report the electrochemical interfacial transfer of thionine from water to 1,2 DCE and the further photochemical reaction upon illumination of this organic phase. Cyclic voltammetry coupled to interfacial absorbance measurements allowed us to perform a kinetic analysis. Values of