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Title: Structure and band-gap design of a new series of light-emitting poly(cyanofluorene-alt-o/m/p-phenylenevinylene)-based copolymers for light-emitting diodes
Authors: Prasad Taranekar
Mansour Abdulbaki
Ramanan Krishnamoorti
Sukon Phanichphant
Paralee Waenkaew
Derek Patton
Timothy Fulghum
Rigoberto Advincula
Keywords: Chemistry
Materials Science
Issue Date: 30-May-2006
Abstract: A new series of 2,2′-(9,9-dioctyl-9H-fluorene-2,7-diyl) diacetonitrile-based alternating polyfluorene copolymers (P12-FL, P13-FL, P14-FL) containing ortho-, meta-, and para-substituted phenylene derivatives have been designed, synthesized, and characterized. These polymers were synthesized using a Knoevenagel condensation polymerization reaction and were found to be predominantly in the trans configuration. The resulting polymers were found to be thermally stable and readily soluble in common organic solvents. The structural, configurational, and conformational changes in the backbone caused a wide variation in the absorption and emission maxima of the polymers. The fabricated light-emitting devices showed very good performance in terms of turn-on voltage, electroluminescence, and lifetime properties. © 2006 American Chemical Society.
ISSN: 00249297
Appears in Collections:CMUL: Journal Articles

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