Defect-free poly(9,9-bis(2-ethylhexyl)fluorene-2,7-vinylene) for polymer light-emitting diode (PLED) devices

Piched Auragudom, Andrew A. Tangonan, Manoj A G Namboothiry, David L. Carroll, Rigoberto C. Advincula, Sukon Phanichphant, T. Randall Lee

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The π-conjugated light-emitting polymer poly (9,9-bis(2-ethylhexyl) fluorene-2,7-vinylene) (PEHFV) was synthesized in defect-free form via Horner-Emmons coupling. The structure and properties of the polymer were characterized by 1H NMR, 13C NMR, UV-vis, photoluminescence (PL), and electroluminescence (EL) spectroscopies as well as gel permeation chromatography (GPC) and thermogravimetric analysis (TGA). The weight-average molecular weight (Mw) and polydispersity of the PEHFV were 34,000 g/mol and 2.3, respectively. The UV-vis spectra showed absorption maxima at 425 and 452 nm, and the PL emission spectra showed a maximum at 505 nm with a shoulder at 541 nm. The polymer was soluble in common organic solvents and easily spin-coated on indium-tin oxide (ITO)-coated glass substrates. A doublelayer light-emitting device with an ITO/PEDOT:PSS/PFV/ Al configuration was fabricated. The turn-on voltage for the PEHFV device was observed at 3.0 V.

Original languageEnglish
Pages (from-to)347-353
Number of pages7
JournalJournal of Polymer Research
Volume17
Issue number3
DOIs
Publication statusPublished - 2010 May
Externally publishedYes

Keywords

  • Defect-free
  • Electroluminescence
  • Poly(fluorene vinylene)(PFV)
  • Polymer light-emitting diode (PLED)

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics
  • Organic Chemistry

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  • Cite this

    Auragudom, P., Tangonan, A. A., Namboothiry, M. A. G., Carroll, D. L., Advincula, R. C., Phanichphant, S., & Lee, T. R. (2010). Defect-free poly(9,9-bis(2-ethylhexyl)fluorene-2,7-vinylene) for polymer light-emitting diode (PLED) devices. Journal of Polymer Research, 17(3), 347-353. https://doi.org/10.1007/s10965-009-9321-8