Synthesis, characterization, and OLED application of oligo(p-phenylene ethynylene)s with polyhedral oligomeric silsesquioxanes (POSS) as pendant groups

Vuthichai Ervithayasuporn, Junichi Abe, Xin Wang, Toshinori Matsushima, Hideyuki Murata, Yusuke Kawakami

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Abstract

Two new classes of mono- and oligo(p-phenylene ethynylene)s grafted with polyhedral oligomeric silsesquioxanes (POSS) were synthesized via 'click' chemistry and palladium-catalyzed Sonogashira cross-coupling. These materials with cubic silsesquioxanes are very robust with excellent thermal stability in air (T5%loss>330 °C) and exhibited Tg>80 °C. All the compounds showed high photoluminescence with a range of blue emission and quantum yield up to 80% in the solution. Extended π conjugation molecules of oligo-pPEs POSS maintain relatively high PL quantum efficiencies in the solid state, compared to mono-pPEs POSS. A preliminary report is made of some of the materials as multilayer OLED components with active dopants PVK and PBD.

Original languageEnglish
Pages (from-to)9348-9355
Number of pages8
JournalTetrahedron
Volume66
Issue number48
DOIs
Publication statusPublished - Nov 27 2010

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All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

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