| Project/Area Number |
24656413
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Structural/Functional materials
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| Research Institution | Hiroshima University |
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Principal Investigator |
OKUYAMA Kikuo 広島大学, 工学(系)研究科(研究院), 特任教授 (00101197)
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| Co-Investigator(Kenkyū-buntansha) |
OGI Takashi 広島大学, 大学院工学研究科, 准教授 (30508809)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | 発光材料 / 白色LED / 蛍光体 / 微粒子合成 / レアアースフリー / 固相法 / 酸窒化物 / 機能性微粒子 / 粉体工学 / 化学工学 / 高輝度化 / 軟X線吸収分光測定 |
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| Outline of Final Research Achievements |
In this project, we focused on the development of highly luminescent rare-earth free BCNO phosphor and their application to white LED. As a result, the following results were obtained. (1) A polyethyleneimine provided BCNO phosphors with the high internal quantum efficiency. (2) XAFS spectra indicated the BCNO phosphor consists of B-N, B-O, N-O bond including SP3 carbon (3) A microwave heating can be used to synthesize BCNO nanoparticle phosphors. In addition, light-emitting polymer could be synthesized from a mixture of the prepared BCNO nanoparticles and a polyvinyl alcohol.
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