Interfacial Electron Transfer Dynamics Following Laser Flash Photolysis of [Ru(bpy)2((4,4′-PO3H2)2bpy)]2+ in TiO2 Nanoparticle Films in Aqueous Environments (pages 216–227)
Dr. M. Kyle Brennaman, Dr. Antonio Otávio T. Patrocinio, Dr. Wenjing Song, Dr. Jonah W. Jurss, Dr. Javier J. Concepcion, Dr. Paul G. Hoertz, Dr. Matthew C. Traub, Prof. Neyde Y. Murakami Iha and Prof. Thomas J. Meyer
Article first published online: 16 FEB 2011 | DOI: 10.1002/cssc.201000356
Knowledge transfer: Injection and back electron transfer from a ruthenium complex bound to a titania surface is investigated by nanosecond laser flash photolysis, under conditions appropriate for water oxidation catalysis by known single-site water oxidation catalysts. The results are qualitatively consistent with a model involving rate-limiting thermal activation of injected electrons from trap sites to the conduction band or shallow trap sites followed by site-to-site hopping and interfacial electron transfer.