Photodriven heterogeneous charge transfer with transition-metal compounds anchored to TiO2 semiconductor surfaces.
A critical review of light-driven interfacial charge-transfer reactions of transition-metal compounds anchored to mesoporous, nanocrystalline TiO2 (anatase) thin films is described. The review highlights molecular insights into metal-to-ligand charge transfer (MLCT) excited states, mechanisms of interfacial charge separation, inter- and intra-molecular electron transfer, and interfacial charge-recombination processes that have been garnered through various spectroscopic and electrochemical techniques. The relevance of these processes to optimization of solar-energy-conversion efficiencies is discussed (483 references).
Ardo
Shane
S
Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA.
Meyer
Gerald J
GJ