Effect of a nanoporous surface on photoluminescence from nanopatterned GaN thin films fabricated by anodic alumina templates

Title
Effect of a nanoporous surface on photoluminescence from nanopatterned GaN thin films fabricated by anodic alumina templates
Authors
김근주최재호정미우덕하
Keywords
photonic crystal; InGaN/GaN multi-quantum well; photoluminescence; porous alumina template
Issue Date
2010-02
Publisher
Philosophical magazine letters
Citation
VOL 90, NO 2, 83-92
Abstract
GaN photonic crystal slabs on InGaN/GaN multi-quantum well light-emitting diodes have been formed by dry etching using nanoporous anodic alumina templates, which have a periodic lattice constant of 105nm and a hole diameter of 45 nm. The photonic crystal slab shows an enhanced intensity of photoluminescence due to the nanohole pattern array producing Fabry–Perot like interference. A rough surface of nanoholes results in a broad spectrum with a small oscillation, and well-ordered multiple facets of nanoholes results in a relatively sharp spectrum with a large oscillation.
URI
http://pubs.kist.re.kr/handle/201004/37111
ISSN
0950-0839
Appears in Collections:
KIST Publication > Article
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