Dual pattern for enhancing light extraction efficiency of white organic light-emitting diodes

Kwan Kim, Kyoung Hoon Han, Yang Doo Kim, Daihong Huh, Yoonjay Han, Heon Lee, Jang Joo Kim

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Nano and micro-patterns (dual patterns) were introduced on a glass substrate as an extraction layer to enhance the light extraction efficiency of white organic light-emitting diodes (WOLEDs). The dual-patterned glass was fabricated by thermal evaporation, direct printing, and reactive ion etching. The combination of nano- and micro-structures imparted highest current density and luminance to the dual-patterned WOLED without electrical degradation. Additionally, the dual-patterned WOLED exhibited higher current and power efficiencies compared to that of the nano- and micro-patterned WOLEDs, which increased by 21% and 27% at 1 mA/cm2, respectively, as compared to that of the reference.

Original languageEnglish
Pages (from-to)201-205
Number of pages5
JournalOrganic Electronics: physics, materials, applications
Volume57
DOIs
Publication statusPublished - 2018 Jun 1

Fingerprint

Organic light emitting diodes (OLED)
light emitting diodes
high current
Glass
Thermal evaporation
glass
Reactive ion etching
power efficiency
luminance
printing
Printing
Luminance
Current density
etching
evaporation
current density
degradation
Degradation
microstructure
Microstructure

Keywords

  • 3-D structure
  • External scattering layer
  • Light extraction efficiency
  • Nano and micro pattern
  • Nanoimprint lithography
  • OLED

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering

Cite this

Dual pattern for enhancing light extraction efficiency of white organic light-emitting diodes. / Kim, Kwan; Han, Kyoung Hoon; Kim, Yang Doo; Huh, Daihong; Han, Yoonjay; Lee, Heon; Kim, Jang Joo.

In: Organic Electronics: physics, materials, applications, Vol. 57, 01.06.2018, p. 201-205.

Research output: Contribution to journalArticle

Kim, Kwan ; Han, Kyoung Hoon ; Kim, Yang Doo ; Huh, Daihong ; Han, Yoonjay ; Lee, Heon ; Kim, Jang Joo. / Dual pattern for enhancing light extraction efficiency of white organic light-emitting diodes. In: Organic Electronics: physics, materials, applications. 2018 ; Vol. 57. pp. 201-205.
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