Multilayer transparent electrode for organic light-emitting diodes: tuning its optical characteristics

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The optical properties of dielectric-metal-dielectric (DMD) transparent electrodes are investigated from the perspectives of organic light-emitting diodes (OLEDs). A joint experimental and theoretical study showed that the optical characteristics of OLEDs based on DMD electrodes can be widely tuned to fulfill the requirements of a target application through careful control of the microcavity effect, transmittance of DMD electrodes, and a correlation of these two factors with the emission spectra of the emitted materials. Upon variation of the DMD structure, near-Lambertian emission and a 100% improvement in the luminous efficiency are demonstrated, respectively. Optimization strategies are also discussed that are relevant to forward luminous efficiency, total optical power, and angular/spectral characteristics. (C) 2010 Optical Society of America
Publisher
OPTICAL SOC AMER
Issue Date
2010-02
Language
English
Article Type
Article
Keywords

DEVICES; DISPLAYS; EMISSION

Citation

OPTICS EXPRESS, v.18, no.4, pp.3404 - 3414

ISSN
1094-4087
DOI
10.1364/OE.18.003404
URI
http://hdl.handle.net/10203/99373
Appears in Collection
EE-Journal Papers(저널논문)
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