Supramolecular Control of Charge??Transfer Dynamics on Dye??sensitized Nanocrystalline TiO2 Films

…, JR Durrant, MK Nazeeruddin, M Gratzel…

文献索引：Hirata, Narukuni; Lagref, Jean-Jacques; Palomares, Emilio J.; Durrant, James R.; Nazeeruddin, M. Khaja; Gratzel, Michael; Di Censo, Davide Chemistry - A European Journal, 2004 , vol. 10, # 3 p. 595 - 602

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被引用次数: 226

摘要

Abstract A [Ru (dcbpy) 2 (NCS) 2] dye has been chemically modified by the addition of a secondary electron donor moiety, N, N-(di-p-anisylamino) phenoxymethyl. Optical excitation of the modified dye adsorbed to nanocrystalline TiO 2 films shows a remarkably long-lived charge-separated state, with a decay half time of 0.7 s. Semiempirical calculations confirm that the HOMO of the modified dye molecule is localised on the electron donor group. The ...