期刊
APPLIED PHYSICS LETTERS
卷 108, 期 20, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4950707
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资金
- Leibniz-Gemeinschaft [SAW-2013-PDI-2]
- Fonds National Suisse de la Recherche Scientifique [161032]
We demonstrate the self-assembled growth of vertically aligned GaN nanowire ensembles on a flexible Ti foil by plasma-assisted molecular beam epitaxy. The analysis of single nanowires by transmission electron microscopy reveals that they are single crystalline. Low-temperature photoluminescence spectroscopy demonstrates that in comparison to standard GaN nanowires grown on Si, the nanowires prepared on the Ti foil exhibit an equivalent crystalline perfection, a higher density of basal-plane stacking faults, but a reduced density of inversion domain boundaries. The room-temperature photoluminescence spectrum of the nanowire ensemble is not influenced or degraded by the bending of the substrate. The present results pave the way for the fabrication of flexible optoelectronic devices based on GaN nanowires on metal foils. Published by AIP Publishing.
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