title: Dynamics of the electric field-assisted charge carrier photogeneration in ladder-type poly(para-phenylene) at a low excitation intensity.
abstract: Electric field-assisted charge carrier photogeneration in a ladder-type methyl-substituted poly(paraphenylene) was investigated by ultrafast absorption spectroscopy at low excitation intensity. The dissociation of excitons into electron-hole pairs occurs from the vibrationally relaxed excited state throughout its lifetime and is caused by the applied electric field, rather than by existence of special "dissociation sites." These findings are of importance for material choice in device applications.
authors.affiliation: Institute of Physics, A. Gostauto 12, 2600, Vilnius, Lithuania.
authors.forename: Vidmantas
authors.initials: V
authors.lastname: Gulbinas
authors.forename: Yuri
authors.initials: Y
authors.lastname: Zaushitsyn
authors.forename: Villy
authors.initials: V
authors.lastname: Sundström
authors.forename: Dirk
authors.initials: D
authors.lastname: Hertel
authors.forename: Heinz
authors.initials: H
authors.lastname: Bässler
authors.forename: Arkady
authors.initials: A
authors.lastname: Yartsev