Spectroscopic properties of poly(1,4-phenylenevinylene) and poly(2-methoxy-1,4-phenylenevinylene)

G. J. Lee, S. K. Yu, D. Kim, J. I. Lee, H. K. Shim

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The spectroscopic properties of poly(1,4-phenylene vinylene) [PPV] and poly(2-methoxy -1,4-phenylene vinylene) [PMPV] in thin film were investigated with FT-IR, UV-VIS absorption, and photoluminescence. From FT-IR and polarized luminescence spectra of stretched films, we found that luminescences in PPV and PMPV were mainly due to the decay of an intra-chain exciton. Through the temperature dependent photoluminescence spectra, we found that the weakening f the exciton-phonon interaction on cooling results in the fluorescence linewidth narrowing, and there exists a thermally activated barrier in excited state potential well. The origins of the bathochromic shift of emission line on cooling are discussed.

Original languageEnglish
Pages (from-to)431-432
Number of pages2
JournalSynthetic Metals
Volume69
Issue number1-3
DOIs
Publication statusPublished - 1995 Mar 1

All Science Journal Classification (ASJC) codes

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

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