Using a double-doping strategy to prepare a bilayer device architecture for high-efficiency red PhOLEDs

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

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Author(s)

  • Ming-Tzu Kao
  • Wen-Yi Hung
  • Zhen-Han Tsai
  • Hong-Wei You
  • Hsiao-Fan Chen
  • Ken-Tsung Wong

Detail(s)

Original languageEnglish
Pages (from-to)1846-1851
Journal / PublicationJournal of Materials Chemistry
Volume21
Issue number6
Online published26 Nov 2010
Publication statusPublished - 14 Feb 2011
Externally publishedYes

Abstract

A simple, bilayered, red phosphorescent organic light-emitting device featuring a doubly-doped emitting layer comprising of the novel hole-transporting host DTAF, the electron-transporting host 27SFBI, and the emitter Os(bpftz)2(PPhMe2)2 covering the interfacial region provides an unusually high current of ca. 1560 mA cm -2 at 8.5 V, a maximum brightness of 32700 cd m-2, external quantum efficiencies as high as 12.3% (10.9% at 1000 cd m -2), and a power efficiency of 13.5 lm W-1. This concise device architecture is very cost-effective and competitive for practical applications.  

Citation Format(s)

Using a double-doping strategy to prepare a bilayer device architecture for high-efficiency red PhOLEDs. / Kao, Ming-Tzu; Hung, Wen-Yi; Tsai, Zhen-Han; You, Hong-Wei; Chen, Hsiao-Fan; Chi, Yun; Wong, Ken-Tsung.

In: Journal of Materials Chemistry, Vol. 21, No. 6, 14.02.2011, p. 1846-1851.

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