Enhancement of normally directed light outcoupilng from organic light-emitting diodes using nanoimprinted low-refractive-index layer

被引:44
作者
Jeong, Soon Moon [1 ]
Araoka, Fumito [1 ]
Machida, Yoshimi [1 ]
Ishikawa, Ken [1 ]
Takezoe, Hideo [1 ]
Nishimura, Suzushi [2 ]
Suzaki, Goro [2 ]
机构
[1] Tokyo Inst Technol, Dept Organ & Polymer Mat, Meguro Ku, Tokyo 1528552, Japan
[2] Nippon Oil Corp, Cent Tech Res Lab, Naka Ku, Yokohama, Kanagawa 2310815, Japan
关键词
D O I
10.1063/1.2839897
中图分类号
O59 [应用物理学];
学科分类号
摘要
The authors have demonstrated increased light outcoupling from organic light-emitting diodes (OLEDs) based on nanoimprinted amorphous fluoropolymer, poly[perfluoro(4-vinyloxy-1-butene)] (PPFVB). Because PPFVB has a low refractive index and a high transmittance over wide wavelength range, the first-order Bragg diffracted light shows high directionality and decreased waveguide absorption. These characteristics provide an advantage for small- or medium-sized OLEDs, which are mainly viewed from the normal direction. (c) 2008 American Institute of Physics.
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页数:3
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