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Direct synthesis and strong cathodoluminescence of Al2O3 nanotubes
journal contribution
posted on 2010-04-15, 00:00 authored by C Li, Y Jiang, S Yang, R Zheng, Wenrong YangWenrong Yang, Z Liu, S Ringerα-Al2O3 nanotubes were synthesized in bulk quantity by using simple physical evaporation of pure aluminum powders at 1000 °C. Field emission scanning electron microscopy and transmission electron microscopy observations show that the nanotubes have diameters smaller than 100 nm and lengths up to several microns. Cathodoluminescence measurements revealed a strong luminescence band in the wavelength range of 280–380 nm centered at 330 nm, which could be attributed to the oxygen vacancies in the α-Al2O3 nanotubes. Sacrificial template model is regarded as the possible formation mechanism of the nanotubes.
History
Journal
Materials chemistry and physicsVolume
120Issue
2-3Pagination
240 - 243Publisher
Elsevier B.V.Location
Amsterdam, The NetherlandsPublisher DOI
ISSN
0254-0584eISSN
1879-3312Language
engPublication classification
C1.1 Refereed article in a scholarly journalCopyright notice
2009, Elsevier B.V.Usage metrics
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