Realization of ultra-high color stable hybrid white organic light-emitting diodes via sequential symmetrical doping in emissive layer

Yanqin Miao, Zhixiang Gao, Peng Tao, Heping Shi, Hua Wang*, Yuanhao Li, Husheng Jia, Wing Hong Choi, Fu Rong ZHU

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

High performance three-color hybrid white organic light-emitting diode (WOLED) has been demonstrated by emissions from a fluorescent blue emitter 5,11-di(40-dimesitylboronphenyl) indolo[3,2-b]carbazole (DDBICZ), a phosphorescent yellow emitter bis(2-(3-trifluoromethyl-4-fluorophenyl)-4-methylquinolyl) (acetylacetonate) iridium(III) (Ir(ffpmq)2(acac)) and a phosphorescent red emitter bis(1-phenylisoquinoline) (acetylacetonate) iridium(III) (Ir(piq)2(acac)). The blue emitting DDBICZ in the device also acts as a host for Ir(ffpmq)2(acac) and Ir(piq)2(acac) dopants. The emissive layer in the DDBICZ-based hybrid WOLEDs consists of a sequential symmetric doping configuration for achieving high color stability, CIE color coordinates of (0.40, 0.41) and color rendering index of 86 over the brightness range from 10 cd/m2 to 10,000 cd/m2. The hybrid WOLEDs thus developed also possess a high lumious efficiency of 25.9 cd/A.

Original languageEnglish
Pages (from-to)401-407
Number of pages7
JournalScience of Advanced Materials
Volume8
Issue number2
DOIs
Publication statusPublished - 1 Feb 2016

Scopus Subject Areas

  • Materials Science(all)

User-Defined Keywords

  • Color rendering index
  • Color stability
  • Hybrid WOLED
  • WOLED

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