Picosecond time-resolved photoluminescence of PPV derivatives

I. D.W. Samuel, G. Rumbles, C. J. Collison, R. H. Friend, S. C. Moratti, A. B. Holmes

Research output: Contribution to journalArticlepeer-review

117 Citations (Scopus)

Abstract

We report some time-resolved luminescence measurements on the conjugated polymer, MEH-PPV, that show a marked dependence on the intensity of the excitation light. At low laser powers the excited state lifetime is longer than has been reported previously and is consistent with emission from an interchain excitation that has low oscillator strength and hence a long natural radiative lifetime. We rationalise these data with a simple scheme that summarises the excited state kinetics in this and other conjugated, electroluminescent polymers.

Original languageEnglish
Pages (from-to)497-500
Number of pages4
JournalSynthetic Metals
Volume84
Issue number1-3
DOIs
Publication statusPublished - Jan 1997

Keywords

  • Photoluminescence
  • Poly(phenylene vinylene) and derivatives
  • Time-resolved fast spectroscopy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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