Function of spinel related phosphors and its application

尖晶石类荧光粉的功能及其应用

• 批准号: 11555232
• 负责人: ENDO Tadashi
• 金额: $ 8.64万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11555232/
• 关键词: Phosphor for Vacuum Fluorescence Display; Cathode luminescence; Magneto-plumbite structure; Phosphor for electron beam excitation; Pyrochlore structure; Semiconductive Oxide; Rare earth element; Plasma Display Panel's Phosphor; プラズマディスプレイ用蛍光体; 低速

The purpose of this project is to examine the material design of novel phosphors for VFD (Vacuum Fluorescence Display) with high fluorescence intensity from a viewpoint of structural low-dimensionality such as magnetoplumbite structure etc. Generally, a luminous phosphor for VFD should be requested to keep some electric conductivity owing to the prevention of some space charges. In this context, we also investigated the fabrication of novel pyrochlore type oxides which consisted of rare earth metals as luminous centers and host lattice with Ti^<4+> and Sn^<4+> ions being semiconductive.As a result, we succeeded to make novel phosphors in the solid solution of Eu^<3+> and Pr^<3+> pyrochlores for VFD. The resulting compounds were identified as single phase of pyrochlore and observed the intense emission by a cathodeluminescence technique after adjusting the suitable concentration of luminous center ions.On the other hand, CaAl_2B_2O_7;Eu^<2+> phosphor was newly synthesized as PDP's (Plasma Display Panel's) use. According to the XRD data, the structure was precisely determined to a layered spinel structure with BO_3 and AlO_4 blocks which were more available for the 147nm-excitation(i.e., Xe gas excitation).

本课题旨在从低维结构如磁铅石结构等角度，探讨高荧光强度真空荧光显示器（VFD）用新型荧光粉的材料设计。一般来说，为了防止一些空间电荷，VFD的发光荧光粉应要求保持一定的导电性。在此背景下，我们还研究了由稀土金属作为发光中心和主晶格的新型焦绿石型氧化物的制备，Ti^<4+>和Sn^<4+>离子具有半导体性。结果表明，我们成功地在Eu^<3+>和Pr^<3+>焦绿石的固溶体中制备了用于VFD的新型荧光粉。通过调整合适的发光中心离子浓度，用阴极发光技术观察到化合物的强发射。另一方面，CaAl_2B_2O_7；新合成了Eu^<2+>荧光粉作为PDP（等离子显示面板）的材料。根据XRD数据，精确地确定了结构为层状尖晶石结构，BO_3和AlO_4块体更适合147nm激发(即。， Xe气体激发)。

项目成果

清水孝之: "バデライト型構造をもつMO_2(M=Zr,Hf)の合成及び発光特性"Journal of the Japan Society of Powder and Powder Metallurgy. 46・2. 175-179 (1999)

Takayuki Shimizu：“具有Baddeleyte结构的MO_2（M=Zr,Hf）的合成和发光特性”日本粉末冶金学会杂志46・2（1999）。

上田恭太: "窒化物および酸窒化物蛍光体の合成と光学特性"固体物理. 35・6. 19-27 (2000)

Kyota Ueda：“氮化物和氮氧化物荧光体的合成和光学特性”固体物理35・6（2000）。

久宗孝之: "Mn^+付活Ba-Sr-Mgアルミン酸塩PDP用緑色蛍光体の開発"照明学会誌. 83・5. 306-313 (1999)

Takayuki Hisamune：“用于PDP的Mn^+激活的Ba-Sr-Mg铝酸盐绿色荧光粉的开发”日本照明学会杂志83・5（1999）。

K.Uheda: "Photo-and thermo-luminescence of zinc silicon nitride doped with divalent manganese"Journal of Materials Science Letters. 20. 1753-1755 (2001)

K.Uheda：“掺杂二价锰的氮化硅锌的光致发光和热致发光”材料科学快报杂志。

T. Hisamune: "Development of Mn^<2+> Activated Ba-Sr-Mg-Aluminate Green Phosphors for PDPs"J. Light & Vis. Env.. 25. 19-27 (2001)

T. Hisamune：“用于 PDP 的 Mn^<2 > 活化 Ba-Sr-Mg-Aluminate 绿色荧光粉的开发”J。