title: Photovoltaic properties of TiO2 loaded with glutathione-protected silver clusters.
abstract: Glutathione-protected Ag clusters (Ag15, Ag25 and Ag29) function as photosensitizers when they are adsorbed on TiO2 electrodes. [Co(bpy)3](2+) is the most appropriate electron donor among the cobalt complexes examined. Ag15 clusters yielded the highest internal quantum efficiency of 28% at 460 nm in the presence of [Co(bpy)3](2+) as a donor.
authors.affiliation: Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan. tatsuma@iis.u-tokyo.ac.jp.
authors.forename: Nobuyuki
authors.initials: N
authors.lastname: Sakai
authors.forename: Satoshi
authors.initials: S
authors.lastname: Nakamura
authors.forename: Tetsu
authors.initials: T
authors.lastname: Tatsuma