Raman study of photo‐induced degradation of the Ru(II) complex adsorbed on nanocrystalline TiO2 films |
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| Authors: | Kun Gao DeLiang Wang |
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| Institution: | Hefei National Lab for Physical Sciences at Microscale, Univ. of Science and Technology of China, Hefei 230026, Anhui, P.R. China |
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| Abstract: | Photo‐induced degradation of a monolayer of the Ru(II) complex adsorbed on anatase TiO2 thin films was studied by using resonant micro‐Raman spectroscopy. We developed two contrastive experiments to analyze the degradation mechanism. An exponential decay law was found when the dye was irradiated in the absence of a reducing agent. While the sensitized TiO2 thin film electrode was covered by the I–/I3– redox couple, the dye degradation exhibited a slowed linear decay. The experimental result was compared and the degradation mechanism was analyzed. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) |
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| Keywords: | 68 43 − h 78 30 Hv 81 07 Bc |
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