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Park, Lee Soon
School of Materials Science and Engineering
Research Interests
  • Flexible OLED new materials, process and fabrication

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Fabrication and Performance of Flexible OLEDs with AGZO/Ag/AGZO Multilayer Anode on Polyethersulfone Film

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Title
Fabrication and Performance of Flexible OLEDs with AGZO/Ag/AGZO Multilayer Anode on Polyethersulfone Film
Author
Lee, Sang JuLee, Eun JiKang, Inn-KyuPark, Soo-YoungYoon, Keun-ByoungKwak, GiseopPark, Lee Soon
Keywords
Flexible; OLED; Microcavity; Multilayer Anode; ITO; PES; AGZO; ITO
Issue Date
2011
Publisher
TAYLOR & FRANCIS LTD
Citation
MOLECULAR CRYSTALS AND LIQUID CRYSTALS, v.550, no., pp.172 - 182
Abstract
In this study, we made flexible OLED's based on polyethersulfone(PES) film which has high transmittance in visible region and high glass transition temperature(Tg 223 degrees C). UV hand coating was conducted on the PES base film followed by SiO2 gas barrier layer and aluminium gallium Zinc Oxide(AGZO)/Ag/AGZO transparent multi layer anode by roll-to-roll sputtering. The SiO2 gas barrier was found to be more effective than the UV hand coating as well as enabling the AGZO/Ag/AGZO multilayer anode deposition by roll-to-roll sputter. The relatively high luminance and current efficiency of the flexible OLED with AGZO/Ag/AGZO multilayer anode could be explained by the decreased energy level close to that of NPB hall injection Layer as well as the micro cavity effect of the multilayer anode and gas barrier layer
URI
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DOI
http://dx.doi.org/10.1080/15421406.2011.599712
ISSN
1542-1406
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