title: Gold cluster-nanoparticle diad systems for plasmonic enhancement of photosensitization.
abstract: Quantum-sized gold clusters are deposited on TiO2 both as a photosensitizer and catalyst, and coupled to plasmonic gold nanoparticles as a light harvesting antenna. Photocurrent enhancement was observed for Au25(SG)18 and Au38(SG)24 but not for Au102(SG)44 (SG = glutathione). The maximum enhancement factor of ~9 is reached at 900 nm.
authors.affiliation: Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Tokyo 153-8505, Japan.
authors.forename: Atsushi
authors.initials: A
authors.lastname: Kogo
authors.forename: Yukina
authors.initials: Y
authors.lastname: Takahashi
authors.forename: Nobuyuki
authors.initials: N
authors.lastname: Sakai
authors.forename: Tetsu
authors.initials: T
authors.lastname: Tatsuma