High-Performance Flexible Organic Light-Emitting Diodes Using Embedded Silver Network Transparent Electrodes
- 5 December 2014
- journal article
- research article
- Published by American Chemical Society (ACS) in ACS Nano
- Vol. 8 (12), 12796-12805
- https://doi.org/10.1021/nn506034g
Abstract
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.Funding Information
- Ministry of Science and Technology of the People's Republic of China (2014CB932600)
- National Natural Science Foundation of China (11474214, 61107022, 91027041, 91323303)
- Collaborative Innovation Center of Suzhou Nano Science and Technology
- Natural Science Foundation of the Higher Education Institutions of Jiangsu Province (10KJA140048)
- Jiangsu Provincial Science and Technology Department (BK20140053)
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