Stabilizing color shift of tandem white organic light-emitting diodes

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One drawback of white organic light-emitting diodes (WOLEDs) is the white angular dependence (WAD). Aimed to suppress the WAD of tandem WOLED to a negligible degree, we investigated the effect of optical resonance and probed various scattering structures. In a two-tandem configuration, the emissive layer physically remote from the reflective metal electrode is causing detrimental WAD. By combining an external nanoparticle based volumetric scattering film and an internal random nanostructure, it was possible to suppress the WAD of tandem WOLED to a value as low as 0.005, which is indistinguishable to human eyes. (C) 2018 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
Publisher
Elsevier BV
Issue Date
ACCEPT
Article Type
Article
Citation

Journal of Industrial and Engineering Chemistry, v.69, pp.414 - 421

ISSN
1226-086X
DOI
10.1016/j.jiec.2018.10.006
URI
http://hdl.handle.net/10203/248963
Appears in Collection
EE-Journal Papers(저널논문)
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