High performance organic light-emitting diodes based on tetra(methoxy)-containing anthracene derivatives as a hole transport and electron-blocking layer

Zhen Yuan Xia, Jian Hua Su, Wai Yeung WONG, Lei Wang, Kok Wai CHEAH, He Tian*, Chin H. Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

A series of 2,3;6,7-tetra(methoxy)-9,10-di(aryl)anthracene derivatives have been readily synthesized by acid-catalyzed Friedel-Crafts alkylation of aromatic aldehydes with veratrole. These compounds have good thermal and morphological stability. Their highest occupied molecular orbital (HOMO: -5.23- -5.28 eV)/lowest unoccupied molecular orbital (LUMO: -2.11- -2.28 eV) energy levels are energetically favorable for use as hole-transporting/electron- blocking layers in organic light-emitting devices (OLEDs). Device performance of these non-amine based hole-transporting materials were comparable to or better than that of the traditional arylamine derivative NPB. The optimized green doped three-layer device based on 2,3;6,7-tetra(methoxy)-9,10-di(1-naphthyl) anthracene (TMOADN) exhibited a current efficiency of 25.6 cd A-1 (13.4 lm W-1) at 20 mA cm-2 with an external quantum efficiency of 7.05%.

Original languageEnglish
Pages (from-to)8382-8388
Number of pages7
JournalJournal of Materials Chemistry
Volume20
Issue number38
DOIs
Publication statusPublished - 14 Oct 2010

Scopus Subject Areas

  • Chemistry(all)
  • Materials Chemistry

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