title: Photophysics of the geminate polaron-pair state in copper phthalocyanine organic photovoltaic blends: evidence for enhanced intersystem crossing.
abstract: Geminate polaron-pair recombination directly to the triplet state of the small dye molecule copper(II) 1,4,8,11,15,18,22,25-octabutoxy-29H,31H- phthalocyanine (CuPC) and exciton trapping in CuPC domains, combine to reduce the internal quantum efficiency of free polaron formation in the bulk-heterojunction blends of CuPC doped with [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) as the electron acceptor.
authors.affiliation: Organic Electroactive Materials Group, Department of Physics, Durham University, South Road, Durham, DH1 3LE, UK.
authors.forename: Edward W
authors.initials: EW
authors.lastname: Snedden
authors.forename: Andrew P
authors.initials: AP
authors.lastname: Monkman
authors.forename: Fernando B
authors.initials: FB
authors.lastname: Dias