Enhanced light extraction by photonic quasi-crystals in GaN blue LEDs

Shields, Philip A., Charlton, Martin, Lee, Tom, Zoorob, Majd and Allsopp, Duncan (2009) Enhanced light extraction by photonic quasi-crystals in GaN blue LEDs. IEEE Journal of Selected Topics in Quantum Electronics, 15 (4), 1269-1274. (doi:10.1109/JSTQE.2009.2016674).

Record type: Article

Abstract

The far-field profile of photonic quasi-crystal patterned and unpatterned LEDs, fabricated from commercial epitaxial substrates by electron beam lithography, has been measured prior to lapping and dicing. Emission enhancements reach a maximum of 62%, and are strongly dependent on the filling factor. Qualitative agreement is achieved between 2-D finite-difference time-domain calculations and the experimental data.

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Published date: 2009

Organisations: Nanoelectronics and Nanotechnology

Identifiers

Local EPrints ID: 270972

URI: http://eprints.soton.ac.uk/id/eprint/270972

DOI: doi:10.1109/JSTQE.2009.2016674

ISSN: 1077-260X

PURE UUID: 331deecf-6db2-4342-942e-efc853e40780

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Date deposited: 04 May 2010 09:56

Last modified: 14 Mar 2024 09:19

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Contributors

Author: Philip A. Shields

Author: Martin Charlton

Author: Tom Lee

Author: Majd Zoorob

Author: Duncan Allsopp

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