Constructing a novel single-layer white organic light-emitting device through a new sky-blue fluorescent bipolar host

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

6 Scopus Citations
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Author(s)

  • Jun Ye
  • Kai Wang
  • Zhan Chen
  • Fei-Fei An
  • Yi Yuan
  • Chi Zhang
  • Xiao-Hong Zhang

Detail(s)

Original languageEnglish
Pages (from-to)3514-3520
Journal / PublicationOrganic Electronics: physics, materials, applications
Volume15
Issue number12
Publication statusPublished - Dec 2014

Abstract

A novel device concept was realized for simple single-layer small-molecule white organic light emitting devices. The single organic active layer here is simply comprised of a newly synthesized sky-blue fluorescent bipolar host (TPASO) and a common orange phosphorescent dopant. Suppressed singlet Föster energy transfer induced by a low-concentration doping and spontaneous high- to low-lying triplet energy transfer, respectively, lead to sky-blue fluorescence from TPASO and orange phosphorescence from the dopant. The resulting two-organic-component device exhibits a low turn-on voltage of 2.4 V, maximum current/power efficiencies up to 11.27 ± 0.02 cd A-1 and 14.15 ± 0.03 lm W-1, and a warm-white CIE coordinate of (0.42, 0.45) at 1000 cd m-2.

Research Area(s)

  • Bipolar host, Blue fluorescence, Fluorescence and phosphorescence hybrid, Single layer, White organic light emitting device

Citation Format(s)

Constructing a novel single-layer white organic light-emitting device through a new sky-blue fluorescent bipolar host. / Ye, Jun; Wang, Kai; Chen, Zhan; An, Fei-Fei; Yuan, Yi; Zhang, Chi; Zhang, Xiao-Hong; Lee, Chun-Sing.

In: Organic Electronics: physics, materials, applications, Vol. 15, No. 12, 12.2014, p. 3514-3520.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review