Photo-induced phase transition in thin films of poly(3-eicosyl)thiophene

N. Hosaka, H. Tachibana, N. Shiga, M. Matsumoto, Y. Tokura

Research output: Contribution to journalConference articlepeer-review


Photo-induced phase transition is observed in poly(3-eicosyl)thiophenes containing head-to-tail couplings of alkyl sidegroups. Threshold and saturation in conversion efficiency of phase transition are found against variations of exciting photon density or photon energy. Observed behaviors indicate that the photo-induced phase transition is considered to be mediated by photogenerated electron-hole pairs which develop into clusters with local changes in bond structures on polymer backbone and sidegroups.

Original languageEnglish
Pages (from-to)212-213
Number of pages2
JournalSynthetic Metals
Issue number1
Publication statusPublished - 1999 May
Externally publishedYes
EventProceedings of the 1998 International Conference on Science and Technology of Synthetic Metals (ICSM-98) - Montpellier
Duration: 1998 Jul 121998 Jul 18

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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