Sub-ps transient differential transmission spectroscopy is used to study the photoexcitation dynamics of a blue emitting ladder-type oligophenyl in bulk film. The observed spectral features are ascribed to singlet excited states and polarons. The time traces of these features reveal the dynamics of charge-carrier generation from singlets via a migration-assisted dissociation mechanism.
|Original language||English (US)|
|Number of pages||7|
|Journal||Physical Review B - Condensed Matter and Materials Physics|
|State||Published - Sep 15 2002|
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics