Publications

BibTex format

@article{Mao:2021:10.1038/s41377-021-00621-7,
author = {Mao, P and Liu, C and Li, X and Liu, M and Chen, Q and Han, M and Maier, SA and Sargent, EH and Zhang, S},
doi = {10.1038/s41377-021-00621-7},
journal = {Light: Science and Applications},
title = {Single-step-fabricated disordered metasurfaces for enhanced light extraction from LEDs.},
url = {http://dx.doi.org/10.1038/s41377-021-00621-7},
volume = {10},
year = {2021}
}

Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - While total internal reflection (TIR) lays the foundation for many important applications, foremost fibre optics that revolutionised information technologies, it is undesirable in some other applications such as light-emitting diodes (LEDs), which are a backbone for energy-efficient light sources. In the case of LEDs, TIR prevents photons from escaping the constituent high-index materials. Advances in material science have led to good efficiencies in generating photons from electron-hole pairs, making light extraction the bottleneck of the overall efficiency of LEDs. In recent years, the extraction efficiency has been improved, using nanostructures at the semiconductor/air interface that outcouple trapped photons to the outside continuum. However, the design of geometrical features for light extraction with sizes comparable to or smaller than the optical wavelength always requires sophisticated and time-consuming fabrication, which causes a gap between lab demonstration and industrial-level applications. Inspired by lightning bugs, we propose and realise a disordered metasurface for light extraction throughout the visible spectrum, achieved with single-step fabrication. By applying such a cost-effective light extraction layer, we improve the external quantum efficiency by a factor of 1.65 for commercialised GaN LEDs, demonstrating a substantial potential for global energy-saving and sustainability.
AU  - Mao,P
AU  - Liu,C
AU  - Li,X
AU  - Liu,M
AU  - Chen,Q
AU  - Han,M
AU  - Maier,SA
AU  - Sargent,EH
AU  - Zhang,S
DO  - 10.1038/s41377-021-00621-7
PY  - 2021///
SN  - 2047-7538
TI  - Single-step-fabricated disordered metasurfaces for enhanced light extraction from LEDs.
T2  - Light: Science and Applications
UR  - http://dx.doi.org/10.1038/s41377-021-00621-7
UR  - https://www.ncbi.nlm.nih.gov/pubmed/34489399
UR  - http://hdl.handle.net/10044/1/91644
VL  - 10
ER  -

Download

ProfessorStefanMaier

Contact

Location

Summary

Citation

BibTex format

RIS format (EndNote, RefMan)