반도체디스플레이기술학회지 (Journal of the Semiconductor & Display Technology)

한국반도체디스플레이기술학회 (The Korean Society Of Semiconductor & Display Technology)
권호 표지

유기발광소자의 광추출 향상을 위한 미세 반구형 유연 필름 연구

Development of Micro-hemisphere Flexible PDMS Film for Enhancing Light Extraction in Organic Light-emitting Devices

  • 백동현 (선문대학교 디스플레이반도체공학과) ;
  • 배은정 (고려대학교 전기공학과) ;
  • 맹형규 (선문대학교 나노과학과) ;
  • 신지수 (선문대학교 디스플레이반도체공학과) ;
  • 박영욱 (선문대학교 디스플레이반도체공학과)
  • Baek, Dong-Hyun (Department of Display and Semiconductor Engineering, Sun Moon University) ;
  • Bae, Eun-Jeong (Department of Electrical Engineering, Korea University) ;
  • Maeng, Hyeongkyu (Department of Physics and Nano-Science, Sun Moon University) ;
  • Shin, Ji Soo (Department of Display and Semiconductor Engineering, Sun Moon University) ;
  • Park, Young Wook (Department of Display and Semiconductor Engineering, Sun Moon University)
  • 투고 : 2022.08.09
  • 심사 : 2022.12.12
  • 발행 : 2022.12.31
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초록

We presented a micro hemi-sphere structure flexible film to improve the external quantum efficiency (EQE) in OLEDs. The micro hemi-sphere flexible film was fabricated with breath figure (BF) method and replica process. At 45 mg/mL of concentration, the size of the hemi-spheres was approximately 6.2 ㎛ were obtained which are the most circular shape. So, it was possible to yield the best performance with an improvement of 33 % in the EQE and the widest viewing angle ranging from 0° to 70°. As a result, the hemi-sphere film's size and distribution seem to play important roles in enhancing the EQE in OLEDs. Furthermore, the flexible hemi-sphere film based on polymeric materials could offer an effective, large-scale, mass-produced product and a simple process and approach to achieve high efficiency in flexible OLEDs.

키워드

과제정보

이 성과는 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원을 받아 수행된 연구임(No. 2020R1C1C1013567)과 2022년도 교육부의 재원으로 한국연구재단의 지원을 받아 수행된 지자체-대학 협력기반 지역혁신 사업의 결과입니다(2021RIS-004). 선문대학교 차세대반도체기술연구소의 분석지원에 감사드립니다.

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