Triphenylamine- and oxadiazole-substituted poly(1,4-phenylenevinylene)s: Synthesis, photo-, and electroluminescent properties

Yong Jin Pu, Takashi Kurata, Minoru Soma, Junji Kido, Hiroyuki Nishide

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

Novel triphenylamine- and oxadiazole-substituted poly(1,4- phenylenevinylene)s (PPV) or CN-PPV (P1-4) were synthesized by the Wittig-Horner, Knoevenagel, and Gilch type polymerization. The polymers exhibited good solubility in common organic solvents, relatively high photoluminescent (PL) efficiency, and high HOMO level for ca. -5.1eV. The simple double-layer devices of triphenylamine-PPV (P1), ITO/PEDOT: PSS/P1/Cs/Al, exhibited a very high luminance of 510cd/m2 under a low driving voltage of 3V, demonstrating the effectiveness of triphenylamine moiety as a substituent of PPV derivatives for a light-emitting polymer. Triphenylamine-CN-PPV (P2) exhibited bipolar reversible redox in CV. The bipolar type of PPVs, P2 and triphenylamine-oxadiazole-PPV (P3), showed lower luminance and efficiency than those of the p-type of PPV (P1).

Original languageEnglish
Pages (from-to)207-214
Number of pages8
JournalSynthetic Metals
Volume143
Issue number2
DOIs
Publication statusPublished - 2004 Jun 3

Keywords

  • Electroluminescence
  • Oxadiazole
  • Poly(phenylenevinylene)
  • Triphenylamine

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Polymers and Plastics

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