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

Hyunsu Cho | Zendy; Changhun Yun | Zendy; Seunghyup Yoo | Zendy

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

Author(s) -

Hyunsu Cho,

Changhun Yun,

Seunghyup Yoo

Publication year - 2010

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.18.003404

Subject(s) - materials science , oled , optoelectronics , transmittance , luminous efficacy , optics , electrode , dielectric , diode , luminous flux , light emitting diode , light source , nanotechnology , physics , layer (electronics) , quantum mechanics

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.

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