2010 Fiscal Year Final Research Report
Sol-gel preparation of phosphor and photocatalyst materials based on germanium and tantalum oxides
| Project/Area Number |
20560632
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Inorganic materials/Physical properties
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| Research Institution | Ritsumeikan University |
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Principal Investigator |
KOJIMA Kazuo Ritsumeikan University, 生命科学部, 教授 (30131311)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 蛍光体 / 光触媒 / 薄膜 / 酸化ゲルマニウム / 酸化亜鉛 / 酸化マグネシウム / 酸化タンタル / ゾル・ゲル法 |
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| Research Abstract |
Sol-gel derived zinc oxide-germanium oxide green-color phosphors, doped with manganese and europium ions, showed long afterglow lasting for over 3 hours. Magnesium oxide-zinc oxide-germanium oxide ceramics, doped with manganese ions, were found to be red, yellow, or green phosphors, depending on the ceramics composition. Zinc germanate transparent thin films, prepared by sol-gel method, showed high photocatalytic activity. These films doped with manganese ions emitted intense green phosphorescence. Tantalum-oxide photocatalytic thin films were also produced.
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