Creation of phase-separated silicate glasses containing Cu cluster ions for luminous materials applied to white color LED.
| Project/Area Number |
21360326
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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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 | Tokyo University of Science |
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Principal Investigator |
YASUMORI Atsuo 東京理科大学, 基礎工学部, 教授 (40182349)
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| Co-Investigator(Kenkyū-buntansha) |
KISHI Tetsuo 東京理科大学, 基礎工学部, 嘱託助教 (90453828)
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| Research Collaborator |
TADA Fumitake 東京理科大学, 基礎工学部, 大学院学生
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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 |
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2011: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2010: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2009: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
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| Keywords | 機能性ガラス / 発光 / ホウケイ酸塩ガラス / 銅イオン / 分相 / クラスタ / 発光ダイオード / 白色発光 / アルカリホウケイ酸系ガラス / 近紫外光 / 溶融急冷法 / 蛍光スペクトル / 励起スペクトル |
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| Research Abstract |
The phase-separated alkali metal-borosilicate glasses containing Cu^+clusters which exhibit warm color yellow luminescence under irradiation of ultraviolet(UV) LED light were prepared by use of a conventional melting method in order to achieve high power luminous material having high thermal and UV light stability. The obtained glass showed yellow luminescence of around 600 nm. The emission intensity increased largely by optimizing additive amounts of Cu ions and a reducing agent. The emission intensity increased much higher by incorporation of calcium oxide into the glass composition.
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Report
(4 results)
Research Products
(17 results)
