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Area-selective external light extraction for metal bus equipped large area transparent organic light-emitting diodes

Authors
Kang, Byoung-KukCho, HyunsuHan, Jun-HanShin, Jin-WookSong, JinoukPark, Seung KooLee, JongheeJoo, Chul WoongKim, EunhyeYoo, SeunghyupLee, Jeong-IkJu, Byeong-KwonMoon, Jaehyun
Issue Date
7-3월-2016
Publisher
OPTICAL SOC AMER
Citation
OPTICS EXPRESS, v.24, no.5, pp.5356 - 5365
Indexed
SCIE
SCOPUS
Journal Title
OPTICS EXPRESS
Volume
24
Number
5
Start Page
5356
End Page
5365
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/89233
DOI
10.1364/OE.24.005356
ISSN
1094-4087
Abstract
Area-selective external light extraction films based on wrinkle structured films were applied to large transparent organic light-emitting diodes (TOLEDs) with auxiliary metal buses. To be specific, on the external surface of the glass, we selectively formed a wrinkle structured film, which was aligned to the auxiliary metal electrodes. The wrinkle-structured film was patterned using a photo-mask and UV curing, which has the same shape of the auxiliary metal electrodes. With this area-selective film, it was possible to enhance the external quantum efficiencies of the bottom and top emissions TOLEDs by 15.7% and 15.1%, respectively, without significant loss in transmittance. Widened angular luminance distributions were also achieved in both emissions directions. (C) 2016 Optical Society of America
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공과대학 (전기전자공학부)
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