콘텐츠 본문
논문 해외 국제전문학술지(SCI급) Polymer Dispersed Liquid Crystal Imprinted by Microlens Array for Enhanced Outcoupling Efficiency of Organic Light Emitting Diode
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2023-12
- 저자명 임성민, 안현식, 장은정, 부소영, Akpeko Gasonoo, 곽진석, 이재현, 최윤석
- 학술지명 Molecules
- 발행처명 MDPI
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 8
논문 초록 (Abstract)
In this paper, we demonstrate the use of polymer dispersed liquid crystal (PDLC) imprinted with a microlens array (MLA) via solution process to improve the outcoupling efficiency of organic light emitting diodes (OLEDs). The PDLC, well known for its scattering effect, is an excellent technology for improving the outcoupling efficiency of OLEDs. Additionally, we introduce a simple spin-coating process to fabricate PDLC which is adaptable for future solution-processed OLEDs. The MLA-imprinted PDLC applied OLED shows an enhancement factor of 1.22 in outcoupling efficiency which is a 37.5% increase compared to the existing PDLC techniques without changing the electrical properties of the OLED. Through this approach, we can expect the roll-to-roll based extremely flexible OLED, and with further research on pattering PDLC by various templates, higher outcoupling efficiency is achievable through a simple UV irradiation process.
