Color-tunable thiazole-based iridium(III) complexes: Synthesis, characterization and their OLED applications

Nga Yuen Chau, Po Yu Ho, Cheuk Lam Ho*, Dongge Ma*, Wai Yeung Wong*

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

36 Citations (Scopus)


With respect to the commonly used electron-deficient pyridyl group in the benchmark dopant Ir(ppy)3, incorporating the electron-rich thiazolyl group with different chromophores have not been extensively studied. In this paper, some iridium(III) complexes bearing functional ligands with the thiazolyl moiety were synthesized and characterized by1H and13C NMR, UV–Vis absorption and photoluminescence spectroscopy. The emission color of these thiazole-based Ir(III) complexes can be tuned from yellow to red and the best phosphorescent organic light-emitting device exhibited the maximum external quantum efficiency of 11.1%, current efficiency of 35.8 cd/A and power efficiency of 21.9 lm/W.

Original languageEnglish
Pages (from-to)92-100
Number of pages9
JournalJournal of Organometallic Chemistry
Publication statusPublished - 1 Feb 2017

Scopus Subject Areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

User-Defined Keywords

  • Color tuning
  • Iridium
  • Organic light-emitting diodes
  • Phosphorescence
  • Thiazole


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