The Role of Carbon Black in the Preparation of GdPO4:Tb Phosphor Powders by Spray Pyrolysis
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概要
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Nano-sized carbon black was applied in the spray pyrolysis as the nucleation seeds. Green-emitting Gd0.81Tb0.19PO4 phosphor powders were prepared by spray pyrolysis from the colloidal spray solution with nano-sized carbon black. The Gd0.81Tb0.19PO4 phosphor powders prepared from the colloidal spray solution had regular morphology and filled structure. The mean size and geometric standard deviation of the phosphor powders prepared from the colloidal spray solution were 0.95 μm and 1.5. The Gd0.81Tb0.19PO4 phosphor powders prepared from the colloidal spray solutions had similar photoluminescence intensities to that of the phosphor powders prepared from the aqueous spray solution under vacuum ultraviolet. Carbon black did not act as impurity of the Gd0.81Tb0.19PO4 phosphor powders.
- 2009-11-25
著者
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Jung Dae
Department Of Chemical Engineering Konkuk University
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Kang Yun
Department Of Chemical Engineering Hiroshima University
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Koo Hye
Department Of Chemical Engineering Konkuk University
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LEE Sang
Department of Acupuncture & Moxibustion, College of Oriental Medicine, Kyung Hee University
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Koo Hye
Department of Chemical Engineering, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 143-701, Korea
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Lee Sang
Department of Chemical Engineering, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 143-701, Korea
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Kang Yun
Department of Biomedical Engineering, Inje University
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