Enhancement of organic light-emitting diodes efficiency using carbon nanotube doped hole-injection layer on the Al-doped ZnO anode

Ji Yun Chun, Jin Woo Han, Tae Wan Kim, Dae Shik Seo

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Nanocomposite layers consisting of multi-walled carbon nanotubes (MWCNTs)-doped poly(3-hexylthiophene) (P3HT) were employed as a hole-injection layer (HIL) in organic light-emitting diodes (OLEDs). The structure of OLED is glass/Al-doped zinc oxide/MWCNTs-doped P3HT/N,N'-bis(3-methylphenyl)-N,N'- bis(phenyl) benzidine/tris(8-hydroxyquinolinato) aluminum/LiF/Al. The obtained current efficiency of the OLED is as high as ~10 cd/A, which is about 30% higher than that of a conventional device without a MWCNTs-doped HIL. As a result, the MWCNTs-doped HIL could elevate the overall performance of the OLEDs and can be easily adopted in the manufacturing process.

Original languageEnglish
Pages (from-to)R13-R15
JournalECS Solid State Letters
Volume1
Issue number3
DOIs
Publication statusPublished - 2012 Dec 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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