Fluorinated poly(p-phenylenevinylene) copolymers: Preparation and use in light-emitting diodes

Iris Benjamm, Erez Z. Faraggi, Yair Avny, Dan Davidov, Ronny Neumann

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

A fluorinated poly(p-phenylenevinylene) analogue, co(TFPV-PV), has been prepared by copolymerization of fluorinated and nonfluorinated bissulfonium salt monomers. Conversion and yield decreased as a function of fluorine substitution. The UV - vis absorption was strongly shifted to the blue with increasing fluorine content. Complementary shifts in photoluminescence spectra were not observed, presumably because the fluorinated segments of the copolymer are very weakly luminescent relative to nonfluorinated segments. The photoluminescence spectra are therefore similar to those found for poly(p-phenylenevinylene) in the past. The co(TFPV-PV) compounds showed electroluminscence at an ac potential of ∼10 V (rms, 600 Hz) between ITO and Al electrodes. Maxima were shifted slightly to the blue with an increase in fluorine.

Original languageEnglish
Pages (from-to)352-355
Number of pages4
JournalChemistry of Materials
Volume8
Issue number2
Publication statusPublished - Feb 1996

ASJC Scopus subject areas

  • Materials Science(all)
  • Materials Chemistry

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