title: High intrachain hole mobility on molecular wires of ladder-type poly(p-phenylenes).
abstract: We have studied the high-frequency (34 GHz) mobility of positive charge carriers on isolated ladder-type polymer chains in dilute solution. We find that the high-frequency mobility is limited by the chain ends on chains as long as 35 monomers. The intrachain motion of charge carriers can be described by one-dimensional diffusion between infinitely high reflecting barriers, representing the chain ends. Our data indicate that the intrachain mobility for ladder-type polymer chains is close to 600 cm(2)/V s. With this high mobility the ladder-type polymer is a promising candidate for future use as an interconnecting wire in molecular electronics.
authors.affiliation: Opto-Electronic Materials Section, DelftChemTech, Delft University of Technology, Mekelweg 15, 2629 JB Delft, The Netherlands.
authors.forename: P
authors.initials: P
authors.lastname: Prins
authors.forename: F C
authors.initials: FC
authors.lastname: Grozema
authors.forename: J M
authors.initials: JM
authors.lastname: Schins
authors.forename: S
authors.initials: S
authors.lastname: Patil
authors.forename: U
authors.initials: U
authors.lastname: Scherf
authors.forename: L D A
authors.initials: LD
authors.lastname: Siebbeles