title: Observation of unusual, highly conductive grain boundaries in high-mobility phase separated organic semiconducting blend films probed by lateral-transport conductive-AFM.
abstract: The effect of grain boundaries in high hole mobility organic blend films of diF-TES ADT:PTAA is evaluated using conductive-AFM measurements revealing the presence of unusually conductive grain boundaries. The latter characteristic has not been reported previously for any other organic semiconducting film system and is believed to underpin the excellent and morphology-independent hole transport characteristics seen in these composite films.
authors.affiliation: Department of Physics and Centre for Plastic Electronics, Imperial College London, South Kensington, SW7 2AZ, UK.
authors.forename: Simon
authors.initials: S
authors.lastname: Hunter
authors.forename: Thomas D
authors.initials: TD
authors.lastname: Anthopoulos
keywords: charge transport; conductive AFM; grain boundary; organic blend semiconductors; organic transistors