상세정보
학술지
Organic Light Emitting Diode with Uniform Luminance Distribution and Enhanced Efficiency via Random Embossing Structure
- 발행일
- 201409
- 출처
- Electrochemical and Solid-State Letters, v.3 no.11, pp.Q56-Q59
- ISSN
- 1099-0062
- 출판사
- Electrochemical Society (ECS)
- 협약과제
- 14PB1200, 에너지 절감을 위한 외광효율이 최대 100% 향상된 OLED용 광추출 기초 원천기술 개발, 이정익
- 초록
- Using the lateral phases separation of a binary immiscible polymer blend, we have fabricated a random embossing structure (RES). The RES was investigated as a potential structure for organic light-emitting diode (OLED) light extraction. Our RES yields uniform light extraction in a broad angle (0째~70째) range with spectral stability. Blue phosphorescence OLEDs equipped with the RES showed an enhancement of 20% in external quantum efficiency (EQE)and spectral stability within ?봷,y < 0.01 in a viewing angle range of 0째~70째. Our RES provides a new and practical approach for achieving enhanced efficiency and spectral stability of OLEDs.
- KSP 제안 키워드
- External Quantum Efficiency, Organic light-emitting diodes(OLEDS), Phosphorescence OLEDs, Practical approach, Spectral stability, Uniform light, blue phosphorescence, enhanced efficiency, immiscible polymer blend, light extraction, light-emitting diode(LED)