Solution-processed photonic crystals to enhance the light outcoupling efficiency of organic light-emitting diodes

被引：18
作者：
Cho, Hwan-Hee [1 ]
Park, Boik [1 ]
Kim, Hyong-Jun [1 ,2 ]
Jeon, Sohee [3 ]
Jeong, Jun-ho [3 ]
Kim, Jang-Joo [1 ]
机构：
[1] Seoul Natl Univ, OLED Ctr, Dept Mat Sci & Engn, Seoul 151744, South Korea
[2] Kongju Natl Univ, Dept Chem Engn, Cheonan 330717, South Korea
[3] Korea Inst Machinery & Mat, Nanomech Syst Res Ctr, Taejon 305343, South Korea
来源：
APPLIED OPTICS | 2010年 / 49卷 / 21期
基金：
新加坡国家研究基金会;
关键词：
EXTRACTION;
D O I：
10.1364/AO.49.004024
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report an effective solution process to fabricate planarized photonic crystal substrates to enhance the outcoupling efficiency of organic light-emitting diodes (OLEDs). The photonic crystal structure was fabricated using nanoimprint lithography using a UV-curable acrylate and was planarized by using a ZnO layer formed by the solgel process. The solgel process resulted in a smooth surface, and OLEDs have been successfully integrated on the planarized photonic crystal layer with a low leakage current. The resulting light outcoupling efficiency was enhanced by 38% compared with that of conventional OLEDs, which is well matched with a theoretical prediction. (C) 2010 Optical Society of America
引用
收藏
页码：4024 / 4028
页数：5
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