Color-stable, ITO-free white organic light-emitting diodes with enhanced efficiency using solution-processed transparent electrodes and optical outcoupling layers
Abstract
In this work, we demonstrate color-stable, ITO-free white organic light-emitting diodes (WOLEDs) with enhanced efficiencies by combining the high-conductivity conducting polymer PEDOT:PSS as transparent electrode and a nanoparticle-based scattering layer (NPSL) as the effective optical out-coupling layer. In addition to efficiency enhancement, the NPSL is also beneficial to the stabilization of electroluminescent spectra/colors over viewing angles. Both the PEDOT:PSS and the NPSL can be fabricated by simple, low-temperature solution processing. The integration of both solution-processable transparent electrodes and light extraction structures into OLEDs is particularly attractive for applications since they simultaneously provide manufacturing, cost and efficiency advantages.
Citation
Chang , H-W , Kim , Y H , Lee , J , Hofmann , S , Luessem , B , Mueller-Meskamp , L , Gather , M C , Leo , K & Wu , C-C 2014 , ' Color-stable, ITO-free white organic light-emitting diodes with enhanced efficiency using solution-processed transparent electrodes and optical outcoupling layers ' , Organic Electronics , vol. 15 , no. 5 , pp. 1028-1034 . https://doi.org/10.1016/j.orgel.2014.02.017
Publication
Organic Electronics
Status
Peer reviewed
ISSN
1566-1199Type
Journal article
Collections
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