| Project/Area Number |
21540333
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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 |
Condensed matter physics I
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| Research Institution | National Institute of Advanced Industrial Science and Technology |
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Principal Investigator |
IKEGAMI Keiichi 独立行政法人産業技術総合研究所, ナノシステム研究部門, 副研究部門長 (50356416)
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| Co-Investigator(Renkei-kenkyūsha) |
TAKASHIMA Hiroshi 独立行政法人産業技術総合研究所, 電子光技術研究部門・酸化物デバイスグループ, 主任研究員 (10357353)
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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 |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2010: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2009: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | 光物性 / ペロブスカイト型酸化物蛍光体 / エネルギー移動 / 単分子膜 / 酸化物蛍光体 / ペロブスカイト蛍光体 / 電界発光 / 蛍光寿命 / LB膜 |
|---|
| Research Abstract |
We tried to elucidate the luminescence mechanism of a representative perovskite oxide phosphor of PCSTO with the aid of a monolayer-forming technique. The experiments revealed that both the UV and carrier-injection excitations create the same excited state of Pr, that both excitations need ca. 4 eV, and that in the carrier-injection case the recombination with the carriers(carrying opposite charges) trapped at the PCSTO/electrode interface is crucial. Consequently, it is supposed that not the transport of the excitons themselves, but the energy transfer from them excites Pr.
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