Robust and highly efficient blue light-emitting hosts based on indene-substituted anthracene

Zhen Yuan Xia, Zhi Yun Zhang, Jian Hua Su, Qiong Zhang, Ka Man Fung, Mei Ki Lam, King Fai Li, Wai Yeung Wong, Kok Wai Cheah, He Tian, Chin H. Chen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

59 Citations (Scopus)

Abstract

Two new unsymmetrically indene-substituted 10-naphthylanthracene derivatives, 9-(4-(1,1′-dimethylinden-3-yl)phenyl)-10-(1-naphthyl) anthracene (DMIP-1-NA) and 9-(4-(1,1′-dimethylinden-3-yl)phenyl)-10-(2- naphthyl)anthracene (DMIP-2-NA), were easily synthesized. Both of them show intense fluorescence and good thermal stability. Three-layer organic light-emitting devices (OLEDs) using these anthracene derivatives as blue host materials and diphenyl-[4-(2-[1,1′;4′,1′′]terphenyl-4- yl-vinyl)-phenyl]amine (BD-1) as the dopant emitter have been fabricated. Highly efficient and color stable OLEDs were achieved under the range of doping concentration from 3% to 7%. A further optimized device structure based on DMIP-2-NA exhibited a maximum power efficiency of 8.39 lm W-1(7.6 cd A-1at 2.90 V) with a pure blue emission at CIEx,ycoordinates of (0.14, 0.18).
Original languageEnglish
Pages (from-to)3768-3774
Number of pages7
JournalJournal of Materials Chemistry
Volume20
Issue number18
DOIs
Publication statusPublished - 10 May 2010
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

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