상세정보
학술지
Improvement of Light Out-Coupling Efficiency in Organic Light-Emitting Diodes with Variable Nanopatterns
- 발행일
- 201401
- 출처
- Electronic Materials Letters, v.10 no.1, pp.27-29
- ISSN
- 1738-8090
- 출판사
- Springer, 대한금속재료학회
- 협약과제
- 13VC5400, 150ºC이하 인쇄기반 플렉세블 디스플에이 백플레인용 산화물 반도체, 절연체 잉크소재 및 공정 기술 개발, 도이미
- 초록
- We present a viable method to enhance the current efficiency of organic light-emitting diodes (OLEDs) by imprinting cylindrical nanopatterns (NPs) onto a glass substrate. Herein, OLEDs equipped with an optimum NP array having a diameter of 300 nm and a periodic distance of 500 nm show a 33.4% improvement in current efficiency compared with a device without NPs. The light extraction efficiency of OLEDs was enhanced using a nanopatterned glass substrate, without any electrical degradation owing to the formation of NPs on opposite sides of the organic layers. In addition, top-emitting OLEDs can be fabricated easily by patterning the encapsulation glass. © 2014 The Korean Institute of Metals and Materials and Springer Science+Business Media Dordrecht.
- KSP 제안 키워드
- Glass substrate, Light outcoupling, Organic layers, Organic light-emitting diodes(OLEDS), Top-emitting OLEDs, current efficiency, electrical degradation, light extraction efficiency, light-emitting diode(LED), out-coupling efficiency