A solution-processable bipolar molecular glass as a host material for white electrophosphorescent devices

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

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Author(s)

  • Chen-Han Chien
  • Liang-Rern Kung
  • Chen-Hao Wu
  • Ching-Fong Shu
  • Sheng-Yuan Chang

Detail(s)

Original languageEnglish
Pages (from-to)3461-3466
Journal / PublicationJournal of Materials Chemistry
Volume18
Issue number29
Online published16 Jun 2008
Publication statusPublished - 2008
Externally publishedYes

Abstract

A solution-processable bipolar material tBu-OXDTFA comprising an electron-rich triphenylamine core and electron-deficient oxadiazole/fluorene peripheries was synthesized. This dendrimer-like molecule not only possesses a high triplet energy (2.74 eV) but also exhibits excellent film-forming properties upon solution processing. We achieved highly efficient white electrophosphorescent OLEDs (22.3 cd A-1, 11.6%) through solution processing, wherein the single white emitting layer was readily formed after spin-coating a solution of blue- and red-phosphor co-dopants containing tBu-OXDTFA as the host matrix.

Citation Format(s)

A solution-processable bipolar molecular glass as a host material for white electrophosphorescent devices. / Chien, Chen-Han; Kung, Liang-Rern; Wu, Chen-Hao; Shu, Ching-Fong; Chang, Sheng-Yuan; Chi, Yun.

In: Journal of Materials Chemistry, Vol. 18, No. 29, 2008, p. 3461-3466.

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