Premium
Counterion Pinning in Conjugated Polyelectrolytes for Applications in Organic Electronics
Author(s) -
Scherf Ullrich
Publication year - 2011
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201101643
Subject(s) - polyelectrolyte , counterion , conjugated system , materials science , polymer , nanotechnology , chemical engineering , chemistry , polymer chemistry , organic chemistry , ion , engineering , composite material
Immobilizing counterions: Cationic, conjugated polyelectrolytes can be used to improve the electron injection from low‐work‐function metal electrodes into the active layers of organic light‐emitting diodes. The problem of mobile counterions has now been solved through the use of zwitterionic, conjugated polyelectrolytes as thin injection layers. These polyelectrolytes (see structure) are made from neutral precursor polymers in a simple one‐step reaction.