Improvement of light-extraction efficiency of organic light-emitting diodes using dielectric nanoparticles

Vidhi Mann; Babita Hooda; Vipul Rastogi

doi:10.1117/1.JNP.11.036010

19 August 2017 Improvement of light-extraction efficiency of organic light-emitting diodes using dielectric nanoparticles

Vidhi Mann, Babita Hooda, Vipul Rastogi

Author Affiliations +

Funded by: Ministry of Communications and Information Technology

Journal of Nanophotonics, Vol. 11, Issue 3, 036010 (August 2017). https://doi.org/10.1117/1.JNP.11.036010

Abstract

Use of dielectric nanoparticles placed at the anode (indium tin oxide) for the improvement of light-extraction efficiency of an organic light-emitting diode (OLED) has been reported. The nanoparticle layer will act as a scattering medium for the light trapped in the waveguiding modes of the device. Mie theory has been applied to study the scattering efficiency of the isolated dielectric nanoparticle. The effect of dielectric nanoparticles on the light-extraction efficiency of OLED has been analyzed by the finite-difference time-domain method. The light-extraction efficiency of the device depends upon the diameter, interparticle separation, and refractive index of dielectric nanoparticles. At optimal nanoparticle parameters, the enhancement factor of 1.7 times is obtained with the proposed design.

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Vidhi Mann, Babita Hooda, and Vipul Rastogi "Improvement of light-extraction efficiency of organic light-emitting diodes using dielectric nanoparticles," Journal of Nanophotonics 11(3), 036010 (19 August 2017). https://doi.org/10.1117/1.JNP.11.036010

Received: 18 May 2017; Accepted: 21 July 2017; Published: 19 August 2017

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