title: Photocurrent amplification by an energy/electron transfer cascade in polymer Langmuir-Blodgett films.
abstract: Effective photocurrent generation by visible light irradiation on hetero-deposited polymer Langmuir-Blodgett (LB) films containing tris(bipyridine) ruthenium(II) (Ru(bpy)3(2+)) and anthracene derivatives was observed. The photocurrent amplification was found to be assisted by the photoinduced energy/electron transfer cascade, which consists of the interlayer triplet-triplet energy transfer process from photoexcited Ru(bpy)3(2+) to anthracene, and then electron transfer processes from the triplet anthracene to a viologen acceptor, from Ru(bpy)3(2+) to the oxidized anthracene and from the electrode to Ru(bpy)3(3+).
authors.affiliation: Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan.
authors.forename: Jinfeng
authors.initials: J
authors.lastname: Chen
authors.forename: Masaya
authors.initials: M
authors.lastname: Mitsuishi
authors.forename: Atsushi
authors.initials: A
authors.lastname: Aoki
authors.forename: Tokuji
authors.initials: T
authors.lastname: Miyashita