A Structural Research on the Low-Temperature Mask-Free Process Based, Random Nanopillar Scattering Layer for Improving OLED Optical Properties

Geun Su Choi, Shin Woo Kang, Eun Jeong Bae, Eun Bi Jang, Byeong Kwon Ju, Young Wook Park

Research output: Contribution to journalConference articlepeer-review

Abstract

In this study, we report OLEDs with improved light-extraction efficiency by applying random nanopillar light-extraction structures (rNPLES). OLEDs containing low-temperature maskfree process-based light-extraction enhancement structures improved by 1.16-fold depending on plane ratio with nonpatterned initial polymer thickness. OLEDs with optimal rNPLES also showed a 129% improvement in external quantum efficiency and a 132% improvement in power efficiency.

Original languageEnglish
Pages (from-to)1297-1299
Number of pages3
JournalDigest of Technical Papers - SID International Symposium
Volume54
Issue number1
DOIs
Publication statusPublished - 2023
Externally publishedYes
EventSID International Symposium Digest of Technical Papers, 2023 - Los Angeles, United States
Duration: 2023 May 212023 May 26

Bibliographical note

Publisher Copyright:
© 2023, John Wiley and Sons Inc. All rights reserved.

Keywords

  • light outcoupling
  • light-extraction structure
  • mask-free process
  • OLEDs
  • random nanopillar
  • scattering layer

ASJC Scopus subject areas

  • General Engineering

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