Effect of a nanoporous surface on photoluminescence from nanopatterned GaN thin films fabricated by anodic alumina templates
- Effect of a nanoporous surface on photoluminescence from nanopatterned GaN thin films fabricated by anodic alumina templates
- 김근주; 최재호; 정미; 우덕하
- photonic crystal; InGaN/GaN multi-quantum well; photoluminescence; porous alumina template
- Issue Date
- Philosophical magazine letters
- VOL 90, NO 2, 83-92
- 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.
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