title: Charge transfer dynamics between photoexcited CdS nanorods and mononuclear Ru water-oxidation catalysts.
abstract: We describe the charge transfer interactions between photoexcited CdS nanorods and mononuclear water oxidation catalysts derived from the [Ru(bpy)(tpy)Cl](+) parent structure. Upon excitation, hole transfer from CdS oxidizes the catalyst (Ru(2+) → Ru(3+)) on a 100 ps to 1 ns timescale. This is followed by 10-100 ns electron transfer (ET) that reduces the Ru(3+) center. The relatively slow ET dynamics may provide opportunities for the accumulation of multiple holes at the catalyst, which is necessary for water oxidation.
authors: Department of Chemistry and Biochemistry, University of Colorado Boulder, Boulder, Colorado 80309, United States.
authors: Huan-Wei
authors: HW
authors: Tseng
authors: Molly B
authors: MB
authors: Wilker
authors: Niels H
authors: NH
authors: Damrauer
authors: Gordana
authors: G
authors: Dukovic
mesh_terms: D019187:Cadmium Compounds / Q000737:chemistry*; D002384:Catalysis; D015394:Molecular Structure; D043942:Nanotubes / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry*; D010084:Oxidation-Reduction; D010316:Particle Size; D055668:Photochemical Processes; D012428:Ruthenium / Q000737:chemistry*; D013440:Sulfides / Q000737:chemistry*; D013499:Surface Properties; D013816:Thermodynamics; D014867:Water / Q000737:chemistry
chemical_list: D019187:Cadmium Compounds; D009942:Organometallic Compounds; D013440:Sulfides; C034939:cadmium sulfide; D014867:Water; D012428:Ruthenium