Controllably tuning excited-state energy in ternary hosts for ultralow-voltage-driven blue electrophosphorescence

Chunmiao Han, Zhensong Zhang, Hui Xu, Jing Li, Guohua Xie, Runfeng Chen, Yi Zhao, Wei Huang

Research output: Contribution to journalArticlepeer-review

128 Scopus citations

Abstract

A series of dibenzofuran-based ternary hosts were designed and prepared. The singlet energy levels and carrier injecting/transporting abilities were adjusted on the basis of the mixed meso and short-axis linkages (see picture). By harmonizing the optical and electrical properties, the blue-emitting diodes realized highly efficient blue electrophosphorescence with ultralow driving voltages.

Original languageEnglish
Pages (from-to)10104-10108
Number of pages5
JournalAngewandte Chemie - International Edition
Volume51
Issue number40
DOIs
StatePublished - 1 Oct 2012
Externally publishedYes

Keywords

  • dibenzofuran
  • electrophosphorescence
  • excited-state tuning
  • light-emitting diodes
  • low-voltage driving

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