Counterion Pinning in Conjugated Polyelectrolytes for Applications in Organic Electronics

Authors

  • Dr. Ullrich Scherf

    Corresponding author
    1. Makromolekulare Chemie und Institut für Polymertechnologie, Bergische Universität Wuppertal, Gaussstrasse 20, 42097 Wuppertal (Germany)
    • Makromolekulare Chemie und Institut für Polymertechnologie, Bergische Universität Wuppertal, Gaussstrasse 20, 42097 Wuppertal (Germany)
    Search for more papers by this author

Abstract

original image

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.

Ancillary