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

Enhanced light extraction by photonic quasi-crystals in GaN blue LEDs
Enhanced light extraction by photonic quasi-crystals in GaN blue LEDs
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.
1077-260X
1269-1274
Shields, Philip A.
731ea6cf-7fea-444a-a7bb-bf98c63a2a30
Charlton, Martin
fcf86ab0-8f34-411a-b576-4f684e51e274
Lee, Tom
71dabe2a-5fd5-4108-80a2-58bc00ad0629
Zoorob, Majd
69c3efc0-d0b0-412f-9db1-8175ad24e29a
Allsopp, Duncan
e34c9eff-9384-49ad-8d8d-c89e8b30cf15
Shields, Philip A.
731ea6cf-7fea-444a-a7bb-bf98c63a2a30
Charlton, Martin
fcf86ab0-8f34-411a-b576-4f684e51e274
Lee, Tom
71dabe2a-5fd5-4108-80a2-58bc00ad0629
Zoorob, Majd
69c3efc0-d0b0-412f-9db1-8175ad24e29a
Allsopp, Duncan
e34c9eff-9384-49ad-8d8d-c89e8b30cf15

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: https://eprints.soton.ac.uk/id/eprint/270972
ISSN: 1077-260X
PURE UUID: 331deecf-6db2-4342-942e-efc853e40780

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Date deposited: 04 May 2010 09:56
Last modified: 19 Jul 2019 22:14

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