Photoluminescence and electroluminescence characteristics of new disubstituted polyacetylenes

C. H. Ting, Chain-Shu Hsu*

*Corresponding author for this work

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

Three di-substituted acetylenes in the tolane structure, 4-(trans-4-pentylcyclohexyl)-3′,4′-difluorotolane (1M), 4-(trans-4-heptylcyclohexyl)-4′-fluorotolane (2M), and 4-(4-pentylphenyl)-4′-fluorotolane (3M), were polymerized in the presence of TaCl5-based catalyst. The weight-average molecular weights Mw̄ of the polymers were high than 4 × 105. Photoluminescence (PL) and electroluminescence (EL) of the three polymers made as single-layer device on indium-tin oxide glass (ITO), ITO/polymer/Al, have been comprehensively studied. By changing the structural conditions of polymer, such as introducing the fluorine atom or a long carbon chain to the end group of polymer side chains, the luminescence is clearly enhanced.

Original languageEnglish
Pages (from-to)5342-5345
Number of pages4
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume40
Issue number9 A
DOIs
StatePublished - 1 Sep 2001

Keywords

  • Electroluminescence
  • Organic LED
  • Photoluminescence
  • Polyacetylene
  • Tolane

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