Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 31, Issue 17, Pages 1560-1567Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.201000125
Keywords
crosslinking; hole conductivity; organic light-emitting diode; spin coating; triarylamines
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Funding
- Deutsche Forschungsgemeinschaft (DFG, Germany)
- Bundesministerium fur Bildung und Forschung (BMBF, Germany)
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A new class of hole-transporting polymers for use in organic electronic devices such as organic light-emitting diodes (OLEDs) or photorefractive holographic storage devices has been synthesized. The polymers contain tetraarylbenzidines or tetraarylphenylenediamines as charge-transporting units in the polymer backbone and are connected by non-conjugating fluorene bridges. For use in OLEDs the novel polymers were functionalized with oxetane groups that can be cross-linked via a cationic ring opening polymerization to yield insoluble networks. Such insoluble films are necessary for the fabrication of multilayer devices by wet deposition techniques. The novel materials feature improved film-formation properties as demonstrated in green-emitting double-layer OLEDs.
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