Title

Light extraction analysis and enhancement in a quantum dot light emitting diode

Authors

Authors

R. D. Zhu; Z. Y. Luo;S. T. Wu

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Opt. Express

Keywords

COLOR GAMUT; DEVICES; EFFICIENCY; DISPLAYS; PERFORMANCE; BACKLIGHT; EMISSION; LCD; Optics

Abstract

We apply a rigorous dipole model to analyze the light outcoupling and angular performance of quantum dot light emitting diode (QLED). To illustrate the design principles, we use a red QLED as an example and compare its performance with an organic light emitting diode (OLED). By combining a high refractive index glass substrate with macroextractors, our simulation results indicate that the light outcoupling efficiency is doubled from similar to 40% to similar to 80%. After analyzing the light emission spectra and angular radiation pattern of the device, we confirm that QLED has a much weaker color shift than OLED. (C) 2014 Optical Society of America

Journal Title

Optics Express

Volume

22

Issue/Number

25

Publication Date

1-1-2014

Document Type

Article

Language

English

First Page

A1783

Last Page

A1798

WOS Identifier

WOS:000346368800016

ISSN

1094-4087

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