Enhance the Light Extraction Efficiency of QLED with Surface Micro-Nanostructure

Joint Authors

Liu, Zilei
Li, Feng
Huang, Gaoxiang
Wei, Jiahu
Jiang, Guangyu
Huang, Yan

Source

Journal of Nanomaterials

Issue

Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-11, 11 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2020-12-24

Country of Publication

Egypt

No. of Pages

11

Main Subjects

Chemistry
Civil Engineering

Abstract EN

Quantum dot light-emitting diodes (QLEDs) are usually a flat multilayer structure.

The luminous efficiency of QLEDs is limited because the light extraction is constrained owing to the substrate mode at the air/substrate interface, the waveguide mode at the conductive glass/organic interface, and the surface plasmon polaritons (SPPs) along the metal/organic interface.

To improve the light extraction for the luminous efficiency of QLEDs, light transmission through the QLEDs coupled with three different surface micro-nanostructures is simulated by using a ray-tracing method.

Furthermore, QLEDs (red, green, and blue emission) coupled with micro-nanostructures are also fabricated to investigate the influence of the micro-nanostructures on the luminous efficiency.

Our simulation results show that more light escapes from the QLEDs coupled with surface micro-nanostructures than the control devices without micro-nanostructures.

Our experimental results are consistent with the simulation results.

By coupling with surface micro-nanostructures, the luminous efficiencies of the devices exhibited great improvement, and the EQE of R/G/B trichromatic reached 17.3%, 2.81%, and 10%, respectively, which are about 1~2 times higher than those of the control devices without any surface structure.

Our results should make a contribution to building a strategy for improving the luminous efficiency of QLEDs.

American Psychological Association (APA)

Liu, Zilei& Li, Feng& Huang, Gaoxiang& Wei, Jiahu& Jiang, Guangyu& Huang, Yan. 2020. Enhance the Light Extraction Efficiency of QLED with Surface Micro-Nanostructure. Journal of Nanomaterials،Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1188598

Modern Language Association (MLA)

Liu, Zilei…[et al.]. Enhance the Light Extraction Efficiency of QLED with Surface Micro-Nanostructure. Journal of Nanomaterials No. 2020 (2020), pp.1-11.
https://search.emarefa.net/detail/BIM-1188598

American Medical Association (AMA)

Liu, Zilei& Li, Feng& Huang, Gaoxiang& Wei, Jiahu& Jiang, Guangyu& Huang, Yan. Enhance the Light Extraction Efficiency of QLED with Surface Micro-Nanostructure. Journal of Nanomaterials. 2020. Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1188598

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1188598