Three carbazole-based host materials: facile synthesis, photophysical properties and performances in PhOLED

Tingting Yang, Huixia Xu, Bo Zhao, Peng Tao, Peng Sun, Hua Wang, Bingshe Xu, Wai Yeung Wong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

11 Citations (Scopus)

Abstract

� 2016 Three host materials based on the carbazole were designed and facilely synthesized, i. e., 9-(6-(9-carbazolyl)hexyl)carbazole (hCP), 9-(4-(2-thiophene-based)phenyl) carbazole (sCP) and 9-(4-(9-carbazolyl)phenyl)carbazole(pCP). The relationships between the structures and photophysical, electrochemical and electrophosphorescent performances were investigated. Their emission peaks are located in UV region and the optical band gap are 3.51, 3.57, and 3.89 eV, respectively. Hence, they can be used as hosts in phosphorescent organic light-emitting devices (PhOLEDs). The PHOLEDs were fabricated by doping tris(2-phenylpyridine)iridium (Ir(ppy)3) in host as light-emitting materials. The maximum current efficiency of the PhOLEDs employed sCP as host was 44.88 cd/A.
Original languageEnglish
Pages (from-to)8066-8072
Number of pages7
JournalTetrahedron
Volume72
Issue number49
DOIs
Publication statusPublished - 1 Jan 2016
Externally publishedYes

Keywords

  • Bipolar host material
  • Carbazole
  • PhOLED
  • Thiophene

ASJC Scopus subject areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

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