title: Polyanionic, alkylthiosulfate-based thiol precursors for conjugated polymer self-assembly onto gold and silver.
abstract: Anionic, conjugated thiophene- and fluorene-based polyelectrolytes with alkylthiosulfate side chains undergo hydrolysis under formation of alkylthiol and dialkyldisulfide functions. The hydrolysis products can be deposited onto gold or silver surfaces by self-assembly from solutions of the anionic conjugated polyelectrolyte (CPE) precursors in polar solvents such as methanol. This procedure allows solution-based surface modifications of gold and silver electrodes using environmentally friendly solvents and enables the formation of conjugated polymer bilayers. The herein presented alkylthiosulfate-substituted CPEs are promising candidates for increasing the work function of gold and silver electrodes thus improving hole injection from such electrode assemblies into organic semiconductors.
authors.affiliation: Bergische Universität Wuppertal , Macromolecular Chemistry Group (buwmakro) and Institut für Polymertechnlogie (IfP), Gauss-Strasse 20, D-42119 Wuppertal, Germany.
authors.forename: Mario
authors.initials: M
authors.lastname: Kraft
authors.forename: Sylwia
authors.initials: S
authors.lastname: Adamczyk
authors.forename: Andreas
authors.initials: A
authors.lastname: Polywka
authors.forename: Kirill
authors.initials: K
authors.lastname: Zilberberg
authors.forename: Christ
authors.initials: C
authors.lastname: Weijtens
authors.forename: Jens
authors.initials: J
authors.lastname: Meyer
authors.forename: Patrick
authors.initials: P
authors.lastname: Görrn
authors.forename: Thomas
authors.initials: T
authors.lastname: Riedl
authors.forename: Ullrich
authors.initials: U
authors.lastname: Scherf