상세정보
학술지
Luminance Enhancement of Top-emitting Blue Organic Light Emitting Diodes Encapsulated with Silicon Nitride Thin Films by a Double-layer Nano-structure
- 발행일
- 202203
- 출처
- Optics Express, v.30 no.7, pp.11959-11972
- ISSN
- 1094-4087
- 출판사
- Optical Society of America (OSA)
- 협약과제
- 22ZB1200, ICT 소재·부품·장비 자립기술 및 도전기술 개발, 황치선
- 초록
- Even though it is in high demand to introduce a nano-structure (NS) light extraction technology on a silicon nitride to be used as a thin film encapsulation material for an organic light-emitting diode (OLED), only an industry-incompatible wet method has been reported. This work demonstrates a double-layer NS fabrication on the silicon nitride using a two-step organic vapor phase deposition (OVPD) of an industry-compatible dry process. The NS showed a wrinkle-like shape caused by coalescence of the nano-lenses. The NS integrated top-emitting OLED revealed 40 percent enhancement of current efficiency and improvement of the luminance distribution and color change according to viewing angle.
- KSP 제안 키워드
- Blue organic light emitting diodes, Color changes, Double layer, Dry process, Extraction technology, Industry-compatible, Luminance enhancement, Nano-structures, Organic light-emitting diodes(OLEDS), Silicon Nitride, Thin film encapsulation