| Abstract
| - A series of highly fluorescent, pyrene-modified oligo(2,7-fluorene ethynylene)s were synthesized andfully characterized. Different emissions were observed between pyrene-end-capped and pyrene-centeredoligo(2,7-fluorene ethynylene)s. Moreover, these oligomers were applied to fabricate organic light-emittingdiodes (OLEDs), and bright blue or green electroluminescence (EL) with good device performances wasachieved in multilayer OLEDs. These pyrene-modified oligo(2,7-fluorene ethynylene)s could be used asoptoelectronics materials or models to investigate fluorescent structure−property relationship of fluorenederivatives.
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