Film-forming hole transporting materials for high brightness flexible organic light-emitting diodes

Xicheng Liu, Jing You, Yin Xiao, Shirong Wang, Wenzheng Gao, Junbiao Peng, Xianggao Li

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


Film-forming property of organic semiconductors is one of crucial factors for the performance of flexible organic light-emitting diode. In this work, two hole transporting materials based on triphenylamine were synthesized, which showed an outstanding film-forming property and could form free-standing films with a diameter of 4 mm. The spin-coated films on the flexible substrates showed an unobvious mechanical failure bended with radius of curvature no less than 6 mm. Photoelectron yield spectroscopy show that the two compounds embody suitable highest occupied molecular orbital levels (-5.14 eV and -5.25 eV) for hole injection. The sandwiched organic light-emitting diodes use poly[2-(4-3′,7′-dimethyloctyloxy)-phenyl]-p-phenylenevinylene) as emitting and electron transporting layer showed higher stability with increasing operation current density, an maximum luminance level of 103,690 cd m-2. It demonstrate that the as-synthesized hole transporting materials hold a promising in high brightness flexible organic light-emitting diodes.

Original languageEnglish
Pages (from-to)36-43
Number of pages8
JournalDyes and Pigments
Publication statusPublished - Feb 1 2016
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Chemical Engineering
  • Process Chemistry and Technology


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