Inverted and large flexible organic light-emitting diodes with low operating voltage

Xun Tang, Lei Ding, Yan Qiu Sun, Yue Min Xie, Ya Li Deng, Zhao Kui Wang, Liang Sheng Liao

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

Green phosphorescent inverted organic light-emitting diodes (IOLEDs) with 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile (HAT-CN)/aluminium/n-doped 4,7-diphenyl-1,10-phenanthroline (Bphen) used as an electron injection layer (EIL) were demonstrated. The IOLED shows the lowest driving voltage of 4.5 V at 10000 cd m-2 to date. The electron injection effects of different interlayers were further investigated by ultraviolet photoelectron spectroscopy (UPS) and evaluating the electron injection efficiency. For application in large-sized OLEDs, a 120 × 120 mm2 flexible IOLED was successfully fabricated based on this inverted structure.

Original languageEnglish
Pages (from-to)12399-12402
Number of pages4
JournalJournal of Materials Chemistry C
Volume3
Issue number48
DOIs
Publication statusPublished - 2015
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Chemistry

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