1,2,4-Triazole derivatives as host materials for blue and green phosphorescent organic light-emitting devices

Huixia Xu*, Peng Sun, Kexiang Wang, Yanqin Miao, Tingting Yang, Hua Wang, Bingshe Xu, Wai Yeung Wong

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

7 Citations (Scopus)

Abstract

A novel host material, namely 9-(6-(3-phenyl-5-(pyridin-2-yl)-4H-1,2,4-triazol-4-yl)hexyl)-9H-carbazole (PPHCZ) was designed and synthesized by incorporating 1, 2, 4-triazol as the electron-withdrawing moiety and carbazole as electron-donating moiety using hexyl as bridge. The photophysical, electrochemical, thermal properties and performances in phosphorescent organic light-emitting devices (PhOLED) were thoroughly characterized. PPHCZ with a high triplet energy level (3.01 eV) exhibited an obvious intermolecular interaction in thin film. Green and blue PhOLEDs using fac-tris(2-phenylpyridine)iridium and iridium(III) bis(4,6-difluorophenyl)-pyridinato [Formula presented],C2′]picolinate as phosphorescent dopants have been fabricated.

Original languageEnglish
Pages (from-to)4408-4413
Number of pages6
JournalTetrahedron
Volume72
Issue number29
DOIs
Publication statusPublished - 21 Jul 2016

Scopus Subject Areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

User-Defined Keywords

  • Carbazole
  • Host materials
  • Light-emitting device

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