Controlling the Surface Organization of Conjugated Donor-Acceptor Polymers by their Aggregation in Solution.
The aggregation of conjugated polymers is found to have a significant influence on the surface organization of deposited films. Difluorobenzothiadiazole-based polymers show a strong pre-aggregation in solution, but the addition of 1,2,4-trichlorobenzene efficiently reduces such aggregates, leading to the transition of the surface organization from edge- to face-on orientation in deposited films.
Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany.
Mengmeng
M
Li
Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany.
Cunbin
C
An
Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany.
Tomasz
T
Marszalek
Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany.
Martin
M
Baumgarten
Department of Chemistry and Hong Kong Branch of Chinese National Engineering Research, Center for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
He
H
Yan
Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany.
Klaus
K
Müllen
Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany.|Department of Molecular Physics, Faculty of Chemistry, Lodz University of Technology, Zeromskiego, 116, 90-924, Lodz, Poland.
Wojciech
W
Pisula
organic field-effect transistors; polymer aggregation; self-assembly; solution processing; surface organization