| Project/Area Number |
21560704
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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 | Toyohashi University of Technology |
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Principal Investigator |
NAKANO Hiromi 豊橋技術科学大学, 研究基盤センター, 准教授 (00319500)
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| Co-Investigator(Renkei-kenkyūsha) |
ISHIZAWA Nobuo 名古屋工業大学, セラミック基盤工学研究センター
KAMEGASHIRA Naoki 豊橋技術科学大学, 名誉教授
AOI Yoshifumi 龍谷大学, 理工学部, 准教授
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 結晶構造 / 組織制御 / 希土類酸化物 / TEM / 高温TEM / 構造相転移 / その場観察 / 組織・構造制御 / 発光特性 / 蛍光体 / 組織・構造解析 / 高温XRD |
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| Research Abstract |
We would like to thank to obtain many useful results during the experimental periods. In the layered-perovskites(BaLn_2Mn_2O_7 Ln : rare earth), first-order transition occurred and the transition time was closely related to the ionic radius of the rare-earth and structural distortions. Those new results are clarified by high-temperature TEM in-situ observations. Besides, a new host material of the phosphor that has a superstructure has been investigated. The bright RGB color emission was obtained using the same host material doped with rare-earth as activators. We tried to synthesize the phosphors at lower temperature for shorter sintering time by millimeter-wave heating as an energy-saving method.
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