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).

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Description/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.

Item Type: Article
ISSNs: 1077-260X (print)
1558-4542 (electronic)
Divisions: Faculty of Physical Sciences and Engineering > Electronics and Computer Science > NANO
ePrint ID: 270972
Date Deposited: 04 May 2010 09:56
Last Modified: 27 Mar 2014 20:16
Further Information:Google Scholar
ISI Citation Count:9
URI: http://eprints.soton.ac.uk/id/eprint/270972

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