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

Prasad Taranekar, Mansour Abdulbaki, Ramanan Krishnamoorti, Sukon Phanichphant, Paralee Waenkaew, Derek Patton, Timothy Fulghum, Rigoberto Advincula

研究成果: Article査読

41 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)3848-3854
ページ数7
ジャーナルMacromolecules
39
11
DOI
出版ステータスPublished - 2006 5 30
外部発表はい

ASJC Scopus subject areas

  • 材料化学

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