Enhanced out-coupling efficiency in OLEDs using ZnS nanodots

  • Il Ji Bae
  • , Dasom Song
  • , Dang Mo Yoon
  • , Deepak Ghimire
  • , Miyoung Kim*
  • , Bum Joo Lee
  • , Byung Yun Joo
  • , Ju Hwan Choi
  • , Jin Koog Shin
  • , Jae Wook Kang
  • *Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

Abstract

We demonstrated highly efficient OLEDs by incorporating ZnS nanodots on top of a glass substrate via a chemical bath deposition process. The device efficiency of OLEDs with ZnS nanodot arrays was 1.26 times higher than that of OLEDs without ZnS. This enhancement in device efficiency is attributed to the improved light out-coupling efficiency that is enabled by the improved optical performance of nanodot arrays, which results from their high refractive index and optical transmittance in the visible wavelength.

Original languageEnglish
Pages (from-to)181-189
Number of pages9
JournalMolecular Crystals and Liquid Crystals
Volume635
Issue number1
DOIs
StatePublished - 2016.08.12

Keywords

  • Hemisphere
  • High refractive index
  • Nanodot
  • Organic light-emitting diode
  • ZnS

Quacquarelli Symonds(QS) Subject Topics

  • Materials Science
  • Chemistry
  • Physics & Astronomy

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