Highly efficient organic light-emitting diodes with a quantum dot interfacial layer

Seung Yoon Ryu, Byoung Har Hwang, Ki Wan Park, Hyeon Seok Hwang, Jin Woo Sung, Hong Koo Baik, Chang Ho Lee, Seung Yong Song, Jun Yeob Lee

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


Advanced organic light-emitting diodes (OLEDs), based on a multiple structure, were achieved in combination with a quantum dot (QD) interfacial layer. The authors used core/shell CdSe/ZnS QDs passivated with trioctylphosphine oxide (TOPO) and TOPO-free QDs as interlayers. Multiple-structure OLEDs (MOLEDs) with TOPO-free QDs showed higher device efficiency because of a well-defined interfacial monolayer formation. Additionally, the three-unit MOLED showed high performance for device efficiency with double-structured QD interfacial layers due to the enhanced charge balance and recombination probability.

Original languageEnglish
Article number065204
Issue number6
Publication statusPublished - 2009

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • General Chemistry
  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering


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