title: Enhanced bimolecular exchange reaction through programmed coordination of a five-coordinate oxovanadium complex for efficient redox mediation in dye-sensitized solar cells.
abstract: Electrochemical reversibility and fast bimolecular exchange reaction found for VO(salen) gave rise to a highly efficient redox mediation to enhance the photocurrent of a dye-sensitized solar cell, leading to an excellent photovoltaic performance with a conversion efficiency of 5.4%. A heterogeneous electron-transfer rate constant at an electrode (k0) and a second-order rate constant for an electron self-exchange reaction (k(ex)) were proposed as key parameters that dominate the charge transport property, which afforded a novel design concept for the mediators based on their kinetic aspects.
authors.affiliation: Department of Applied Chemistry, Waseda University, Tokyo 169-8555, Japan. oyaizu@waseda.jp.
authors.forename: Kenichi
authors.initials: K
authors.lastname: Oyaizu
authors.forename: Noriko
authors.initials: N
authors.lastname: Hayo
authors.forename: Yoshito
authors.initials: Y
authors.lastname: Sasada
authors.forename: Fumiaki
authors.initials: F
authors.lastname: Kato
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Nishide
mesh_terms: D004396:Coloring Agents / Q000737:chemistry*; D011211:Electric Power Supplies; D010084:Oxidation-Reduction; D012993:Solar Energy; D014638:Vanadates / Q000737:chemistry*
chemical_list: D004396:Coloring Agents; C075743:oxovanadium IV; D014638:Vanadates