Photodriven heterogeneous charge transfer with transition-metal compounds anchored to TiO2 semiconductor surfaces

Shane Ardo; Gerald J Meyer

doi:10.1039/b804321n

Photodriven heterogeneous charge transfer with transition-metal compounds anchored to TiO2 semiconductor surfaces

Chem Soc Rev. 2009 Jan;38(1):115-64. doi: 10.1039/b804321n. Epub 2008 Dec 1.

Authors

Shane Ardo¹, Gerald J Meyer

Affiliation

¹ Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA.

PMID: 19088971
DOI: 10.1039/b804321n

Abstract

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).