상세정보
학술지
Highly Conductive and Transparent Thin Metal Layer for Reducing Microcavity Effect in Top-emitting White Organic Light-emitting Diode
- 발행일
- 202207
- 출처
- Organic Electronics, v.106, pp.1-7
- ISSN
- 1566-1199
- 출판사
- Elsevier
- 협약과제
- 21PB2500, OLED RGB 화소 제조용 감광성 격벽형 소재기술 개발, 김기현
- 초록
- The optical and electrical properties of the top electrode are crucial for the structural design of top-emitting organic light-emitting diodes (OLEDs). A uniform metal layer, if obtainable, can be electrically excellent and optically well-tuned. In this study, Ag deposited with Mg at a concentration of 9:1 to form a metal thin film exhibits higher conductivity and higher transmittance than those of a neat Ag thin film within a thickness of 10 nm or less. In addition, the thin Mg:LiF (1:1) layer renders the Mg:Ag metal film more uniform and enhances its electron injection property. If a Mg:LiF/Mg:Ag thin film is applied to top-emitting white OLEDs, the driving voltage is lowered and the efficiency is improved. In addition, color shifts for viewing angles are reduced, and the emission characteristics are close to Lambertian.
- KSP 제안 키워드
- Ag thin film, Microcavity effect, Optical and electrical properties, Organic light-emitting diodes(OLEDS), Structural Design, White organic light-emitting diodes, driving voltage, electrical properties(I-V curve), electron injection, emission characteristics, highly conductive