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Electrochemical fabrication of arrayed alumina nanowires showing strong blue emission |
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| Authors: | M R Kim J Y Kim D-J Jang |
| Institution: | (1) School of Chemistry, Seoul National University, NS60, Seoul, 151-742, Korea |
| Abstract: | Arrayed alumina nanowires having controlled uniform diameters of 30–90 nm and lengths of 2–10 μm have been fabricated electrochemically with a high yield using two-step anodized aluminum oxide membranes as templates. The observed photoluminescence of the arrayed alumina nanowires arising from the emission of F+ and F centers is strong and blue-shifted compared with that of porous alumina membranes due to the structural difference of Al2O3. Our synthesized alumina nanowires are also found to be chemically more stable than the templates. |
| Keywords: | 73 22 -f Electronic structure of nanoscale materials: clusters nanoparticles nanotubes and nanocrystals 78 55 -m Photoluminescence properties and materials 76 30 Mi Color centers and other defects |
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