| Project/Area Number |
23560398
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Electron device/Electronic equipment
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| Research Institution | Tottori University |
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Principal Investigator |
OHMI Koutoku 鳥取大学, 工学(系)研究科(研究院), 教授 (90243378)
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| Co-Investigator(Kenkyū-buntansha) |
ICHINO Kunio 鳥取大学, 工学研究科, 教授 (90263483)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
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| Keywords | エレクトロルミネッセンス / フレキシブル / プリンタブル / インクジェットプリンタ / ナノ粒子蛍光体 / 溶液合成 / 無機EL / ナノ蛍光体 / インクジェットプリント / 国際情報交換 / 国際情報交流 |
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| Research Abstract |
Printable and flexible inorganic electrolumninescent (EL) devices have been attempted to prepare by inkjet printing using nano phosphor particles. The SrGa2S4:Eu-printed EL devices shows a pure green emission with a luminance of 37 cd/m2. The synthesized ZnS:Mn nano particles have a size of about 3 nm, and have an internal quantum efficiency (IQE) is about 49 % under 320-nm-UV irradiation at room temperature. The IQE value is the maximum in the reported ZnS:Mn nano phosphors. By using the nano phosphor particles, a stable inkjet printing has been achieved. The developed technique is considered to enable us to realize the flexible EL devices on plastic sheets.
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