Effect of annealing treatment on luminescence property of MgO nanowires
Magnesium oxide nanowires (NWs) were synthesized by a current heating process. The effect of annealing treatment in air on their structural and optical characteristics was investigated. As-grown NWs in diameter ranging from 30 to 70 nm and length up to several 10 μm were obtained. Carbon-coating lay...
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th-cmuir.6653943832-596832018-09-10T03:24:34Z Effect of annealing treatment on luminescence property of MgO nanowires Thanut Jintakosol Pisith Singjai Materials Science Physics and Astronomy Magnesium oxide nanowires (NWs) were synthesized by a current heating process. The effect of annealing treatment in air on their structural and optical characteristics was investigated. As-grown NWs in diameter ranging from 30 to 70 nm and length up to several 10 μm were obtained. Carbon-coating layers were observed in the as-grown NWs which were oxidized during the annealing treatment at high temperature. Ionoluminescence spectra of the as-grown and annealed NWs have showed two emission peaks centered at 360 nm (UV emission) and 492 nm (green emission). The intensities of green emission were maximum at the annealing temperature of 650 °C for 2 h, whereas those of UV emission were decreased with increasing the annealing temperature. It is anticipated that maximum green emission correlates to the sufficient density of oxygen vacancies which was occurred by the optimum annealing parameters of both temperature and time. © 2009 Elsevier B.V. All rights reserved. 2018-09-10T03:19:18Z 2018-09-10T03:19:18Z 2009-11-01 Journal 15671739 2-s2.0-67349135969 10.1016/j.cap.2009.02.014 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=67349135969&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/59683 |
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Materials Science Physics and Astronomy Thanut Jintakosol Pisith Singjai Effect of annealing treatment on luminescence property of MgO nanowires |
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Magnesium oxide nanowires (NWs) were synthesized by a current heating process. The effect of annealing treatment in air on their structural and optical characteristics was investigated. As-grown NWs in diameter ranging from 30 to 70 nm and length up to several 10 μm were obtained. Carbon-coating layers were observed in the as-grown NWs which were oxidized during the annealing treatment at high temperature. Ionoluminescence spectra of the as-grown and annealed NWs have showed two emission peaks centered at 360 nm (UV emission) and 492 nm (green emission). The intensities of green emission were maximum at the annealing temperature of 650 °C for 2 h, whereas those of UV emission were decreased with increasing the annealing temperature. It is anticipated that maximum green emission correlates to the sufficient density of oxygen vacancies which was occurred by the optimum annealing parameters of both temperature and time. © 2009 Elsevier B.V. All rights reserved. |
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Thanut Jintakosol Pisith Singjai |
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Thanut Jintakosol Pisith Singjai |
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Thanut Jintakosol |
title |
Effect of annealing treatment on luminescence property of MgO nanowires |
title_short |
Effect of annealing treatment on luminescence property of MgO nanowires |
title_full |
Effect of annealing treatment on luminescence property of MgO nanowires |
title_fullStr |
Effect of annealing treatment on luminescence property of MgO nanowires |
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Effect of annealing treatment on luminescence property of MgO nanowires |
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effect of annealing treatment on luminescence property of mgo nanowires |
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2018 |
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https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=67349135969&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/59683 |
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