High-Performance Flexible Organic Light-Emitting Diodes Using Embedded Silver Network Transparent Electrodes

Because of their mechanical flexibility, organic light-emitting diodes (OLEDs) hold great promise as a leading technology for display and lighting applications in wearable electronics. The development of flexible OLEDs requires high-quality transparent conductive electrodes with superior bendability...

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Bibliographic Details
Published in:ACS nano 2014-12, Vol.8 (12), p.12796-12805
Main Authors: Zhou, Lei, Xiang, Heng-Yang, Shen, Su, Li, Yan-Qing, Chen, Jing-De, Xie, Hao-Jun, Goldthorpe, Irene A, Chen, Lin-Sen, Lee, Shuit-Tong, Tang, Jian-Xin
Format: Article
Language:English
Subjects:
Conductors (devices)
Electrodes
Formability
Indium tin oxide
Networks
Organic light emitting diodes
Silver
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Summary:Because of their mechanical flexibility, organic light-emitting diodes (OLEDs) hold great promise as a leading technology for display and lighting applications in wearable electronics. The development of flexible OLEDs requires high-quality transparent conductive electrodes with superior bendability and roll-to-roll manufacturing compatibility to replace indium tin oxide (ITO) anodes. Here, we present a flexible transparent conductor on plastic with embedded silver networks which is used to achieve flexible, highly power-efficient large-area green and white OLEDs. By combining an improved outcoupling structure for simultaneously extracting light in waveguide and substrate modes and reducing the surface plasmonic losses, flexible white OLEDs exhibit a power efficiency of 106 lm W–1 at 1000 cd m–2 with angular color stability, which is significantly higher than all other reports of flexible white OLEDs. These results represent an exciting step toward the realization of ITO-free, high-efficiency OLEDs for use in a wide variety of high-performance flexible applications.
ISSN:1936-0851
1936-086X
DOI:10.1021/nn506034g