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.
Original language | English |
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Pages (from-to) | 11758-11765 |
Number of pages | 8 |
Journal | ACS Applied Materials & Interfaces |
Volume | 6 |
Issue number | 14 |
DOIs | |
Publication status | Published - 23 Jul 2014 |
Externally published | Yes |
Keywords
- conjugated polyelectrolytes (CPE)
- Bunte salts
- self-assembly
- cross-linking
- charge injection interlayer
- conjugated polymer bilayer