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Photo-patternable electroluminescent blends of polyfluorene derivatives and charge-transporting molecules
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- Authors
- Ji Young Park, Jong Hee Lee, Jin-Baek Kim
- Issue Date
- 2008-12
- Citation
- European Polymer Journal, v.44, no.12, pp.3981-3986
- ISSN
- 0014-3057
- Publisher
- Elsevier
- Language
- English
- Type
- Journal Article
- Abstract
- New photo-curable blends of electroluminescent polymeric hosts and charge-transporting dopants were designed for photo-patterning and avoiding phase separation during the process. Oxetane-functionalized polyfluorene derivatives, aryl amines, and aromatic oxadiazoles were synthesized. Through a standard photolithographic process, 5-μm line and space patterns of the electroluminescent material on silicon substrate were produced. Devices constructed from the photo-curable blends showed better color purity of blue emission and more excellent device performances compared with those of the pure polyfluorene derivative. © 2008 Elsevier Ltd. All rights reserved.
- KSP Keywords
- Aromatic oxadiazoles, Aryl amines, Line and space, Phase separation, Photo-curable, Photolithographic process, Polyfluorene derivative, Silicon substrate, blue emission, color purity, photo-patterning