반도체디스플레이기술학회지 (Journal of the Semiconductor & Display Technology)

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

유기발광 다이오드의 정공수송층 두께에 따른 미소 공진 효과의 영향에 관한 연구

A Study on the Effects of Micro Cavity on the HTL Thicknesses on the Top Emission Organic Light Emitting Diode

  • 이동운 (가천대학교 전자공학과) ;
  • 조의식 (가천대학교 전자공학과) ;
  • 성진욱 (가천대학교 전자공학과) ;
  • 권상직 (가천대학교 전자공학과)
  • Lee, DongWoon (Department of Electronics Engineering, Gachon University) ;
  • Cho, Eou Sik (Department of Electronics Engineering, Gachon University) ;
  • Seong, Jin-Wook (Department of Electronics Engineering, Gachon University) ;
  • Kwon, Sang Jik (Department of Electronics Engineering, Gachon University)
  • 투고 : 2022.03.03
  • 심사 : 2022.03.25
  • 발행 : 2022.03.31
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초록

Top emission organic light-emitting diode is commonly used because of high efficiency and good color purity than bottom - emission organic light-emitting device. Unlike BEOLED, TEOLED contain semi-transparent metal cathode. Because of semi-transparent cathode, micro cavity effect occurs in TEOLED. We optimized this effect by changing the thickness of hole injection layer. Device consists of is indium-tin-oxide / N,N'-Di-[(1-naphthyl)-N,N'-diphenyl]-1,1'-biphenyl-4,4'-diamine (x nm) / tris-(8-hydroxyquinoline) aluminum (50nm) / LiF(0.5nm) / Mg:Ag (1:9), and we changed NPB thickness which is used as HTL in our device in order to study how micro cavity effects are changed by optical path. As the results, NPB thickness at 35nm showed the current efficiency of 8.55Cd/A.

키워드

과제정보

본 논문은 산업통상자원부 '산업혁신인재성장지원사업'의 재원으로 한국산업기술진흥원(KIAT)의 지원을 받아 수행된 연구임. (2020년 차세대 디스플레이 공정·장비·소재 전문인력 양성사업, 과제번호: P0012453)

참고문헌

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