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

Research output: Contribution to journalArticle

41 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)3848-3854
Number of pages7
JournalMacromolecules
Volume39
Issue number11
DOIs
Publication statusPublished - 2006 May 30
Externally publishedYes

    Fingerprint

ASJC Scopus subject areas

  • Materials Chemistry

Cite this

Taranekar, P., Abdulbaki, M., Krishnamoorti, R., Phanichphant, S., Waenkaew, P., Patton, D., Fulghum, T., & Advincula, R. (2006). 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. Macromolecules, 39(11), 3848-3854. https://doi.org/10.1021/ma060253y