title: Photoinduced energy transfer from poly(N-vinylcarbazole) to tricarbonylchloro-(2,2'-bipyridyl)rhenium(I).
abstract: This work investigates the photoinduced energy transfer from poly(N-vinylcarbazole) (PVK), as a donor material, to fac-(2,2'-bipyridyl)Re(CO)3Cl, as a catalyst acceptor, for its potential application towards CO2 reduction. Photoluminescence quenching experiments reveal dynamic quenching through resonance energy transfer in solid donor/acceptor mixtures and in solid/liquid systems. The bimolecular reaction rate constant at solution-film interfaces for the elementary reaction of the excited state with the quencher material could be determined as 8.8(±1.4)×10(11)  L mol(-1)  s(-1) by using Stern-Volmer analysis. This work shows that PVK is an effective and cheap absorber material that can act efficiently as a redox photosensitizer in combination with fac-(2,2'-bipyridyl)Re(CO)3Cl as a catalyst acceptor, which might lead to possible applications in photocatalytic CO2 reduction.
authors.affiliation: Linz Institute for Organic Solar Cells (LIOS), Physical Chemistry, Johannes Kepler University Linz (Austria). engelbert.portenkirchner@jku.at.
authors.forename: Engelbert
authors.initials: E
authors.lastname: Portenkirchner
authors.forename: Dogukan
authors.initials: D
authors.lastname: Apaydin
authors.forename: Gottfried
authors.initials: G
authors.lastname: Aufischer
authors.forename: Marek
authors.initials: M
authors.lastname: Havlicek
authors.forename: Matthew
authors.initials: M
authors.lastname: White
authors.forename: Markus Clark
authors.initials: MC
authors.lastname: Scharber
authors.forename: Niyazi Serdar
authors.initials: NS
authors.lastname: Sariciftci
keywords: CO2 reduction; catalysis; energy transfer; poly(N-vinylcarbazole); rhenium