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Blue electroluminescence from oxadiazole grafted poly(phenylene-ethynylene)s
Craig A Breen1, Sandra Rifai, Vladimir Bulović
1Department of Chemistry, Laboratory of Organic Optics and Electronics, and Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
Abstract:
Blue poly(phenylene-ethynylene) (PPE) electroluminescence is achieved in a single layer organic light emitting device. The polymeric system consists of an oxadiazole grafted PPE, which combines the necessary charge transport properties while maintaining the desirable efficient, narrow light-emitting properties of the PPE. Incorporation of a pentiptycene scaffold within the PPE structure prevents ground-state and excited-state interactions between the pendent oxadiazole units and the conjugated backbone.
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