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Nano-silver microcavity enhanced UV GaN light emitter

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Main Authors: Naser Mahmoud, Ahmed, Zaliman, Sauli, Uda, Hashim, Zul Azhar, Zahid Jamal
Other Authors: naser@unimap.edu.my
Format: Article
Language:English
Published: Inderscience Enterprises Limited 2009
Subjects:
GaN
Nanosilver
Photoluminescence
Plasmon frequency
Nanomanufacturing
Nanotechnology
Gallium nitride
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/7426
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spelling my.unimap-74262009-12-16T05:05:21Z Nano-silver microcavity enhanced UV GaN light emitter Naser Mahmoud, Ahmed Zaliman, Sauli Uda, Hashim Zul Azhar, Zahid Jamal naser@unimap.edu.my GaN Nanosilver Photoluminescence Plasmon frequency Nanomanufacturing Nanotechnology Gallium nitride Link to publisher's homepage at http://www.inderscience.com/ We report results of measurements that help to clarify the role of silver in the reflection of UV emission light from GaN. A GaN as an active layer was sandwiched between two silver metal reflectors. GaN layer on sapphire showed a photoluminescence (PL) peak around 364 nm and its full width half maximum was about 6.7 nm. Two types of microcavity, were fabricated: half-cavity GaN/sapphire/silver and full-cavity silver/ GaN/sapphire/silver. Photoluminescence measurements showed a two-fold intensity enhancement in half-cavity back mirror. In the full cavity samples, the amplitude of the photoluminescence is enhanced ten times when we used 50 nm silver as a front mirror. A tremendous more than 16-fold enhancement is obtained when silver mirror of 25 nm was used as a front mirror. The increase in the photoluminescence intensity is explained in terms of competition between increasing absorption in the cavity, silver surface plasmon coupling and increasing optical field-enhancement due to resonator. 2009-12-16T04:09:07Z 2009-12-16T04:09:07Z 2009 Article International Journal of Nanomanufacturing, vol.4 (1-4), 2009, pages 26-33. 1746-9406 (Online) 1746-9392 (Print) http://www.inderscience.com/offer.php?id=28107 http://hdl.handle.net/123456789/7426 en Inderscience Enterprises Limited
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic GaN
Nanosilver
Photoluminescence
Plasmon frequency
Nanomanufacturing
Nanotechnology
Gallium nitride
spellingShingle GaN
Nanosilver
Photoluminescence
Plasmon frequency
Nanomanufacturing
Nanotechnology
Gallium nitride
Naser Mahmoud, Ahmed
Zaliman, Sauli
Uda, Hashim
Zul Azhar, Zahid Jamal
Nano-silver microcavity enhanced UV GaN light emitter
description Link to publisher's homepage at http://www.inderscience.com/
author2 naser@unimap.edu.my
author_facet naser@unimap.edu.my
Naser Mahmoud, Ahmed
Zaliman, Sauli
Uda, Hashim
Zul Azhar, Zahid Jamal
format Article
author Naser Mahmoud, Ahmed
Zaliman, Sauli
Uda, Hashim
Zul Azhar, Zahid Jamal
author_sort Naser Mahmoud, Ahmed
title Nano-silver microcavity enhanced UV GaN light emitter
title_short Nano-silver microcavity enhanced UV GaN light emitter
title_full Nano-silver microcavity enhanced UV GaN light emitter
title_fullStr Nano-silver microcavity enhanced UV GaN light emitter
title_full_unstemmed Nano-silver microcavity enhanced UV GaN light emitter
title_sort nano-silver microcavity enhanced uv gan light emitter
publisher Inderscience Enterprises Limited
publishDate 2009
url http://dspace.unimap.edu.my/xmlui/handle/123456789/7426
_version_ 1643788810513809408
score 13.159267

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