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    • 2. 发明申请
    • AN ALUMINATE PHOSPHOR CONTAINING BIVALENCE METAL ELEMENTS, ITS PREPARATION AND THE LIGHT EMITTING DEVICES INCORPORATING THE SAME
    • 含有金属元素的铝酸盐荧光体及其制备方法和引入其的发光装置
    • WO2008058462A1
    • 2008-05-22
    • PCT/CN2007003205
    • 2007-11-13
    • GEN RES INST FOR NONFERROUS MEGRIREM ADVANCED MATERIALS COZHUANG WEIDONGHU YUNSHENGLONG ZHENZHANG SHUSHENGHUANG XIAOWEILI HONGWEI
    • ZHUANG WEIDONGHU YUNSHENGLONG ZHENZHANG SHUSHENGHUANG XIAOWEILI HONGWEI
    • C09K11/78
    • C09K11/7774C09K11/778
    • The present invention relates to a phosphor that can be excited by UV3 purple or blue light LED, its production and the light emitting devices. General formula of the phosphor is Ln a M b (O,F) 12 :(R 3+ , M '2+ ) x, wherein, Ln is at least one metal element selected from a group consisting of Sc, Y, La, Pr, Nd, Gd, Ho, Yb and Sm, 2.6= a=3.4; M is at least one element selected from a group consisting of B, Al and Ga, 4.5=b=5.5; R is at least one metal element selected from a group consisting of Ce and Tb; M' is at least one metal element selected from a group consisting of Ca, Sr, Ba, Mn and Zn, 0.001=x=0.4. Production method of the phosphor is: raw materials are weighed according to general formula. Further, flux is added. The raw materials are mixed, grinded sequentially and then baked at high temperature in reducing atmosphere. After post-treatment, the phosphor of the present invention is obtained. The phosphor possess broad emitting range, high efficiency, better uniformity and stability. The production method is simple, no pollution and lower cost. A light emitting device can be obtained by incorporating this phosphor into a UV, purple or blue light emitting device.
    • 本发明涉及一种能够被紫外线紫光或蓝光LED激发的荧光体,其制造方法和发光装置。 荧光体的通式为Ln(O,F)12:(R 3 +), 其中,Ln是选自Sc,Y,La,Pr,Nd,Gd,Ho中的至少一种金属元素, Yb和Sm,2.6 = a = 3.4; M是选自B,Al和Ga中的至少一种元素,4.5 = b = 5.5; R是选自Ce和Tb中的至少一种金属元素; M'是选自Ca,Sr,Ba,Mn和Zn中的至少一种金属元素,0.001 = x = 0.4。 荧光体的制造方法是:按照通式称量原料。 此外,加入助熔剂。 将原料混合,依次研磨,然后在还原气氛中在高温下烘烤。 后处理后,得到本发明的荧光体。 荧光粉具有广泛的发光范围,高效率,更好的均匀性和稳定性。 生产方法简单,无污染,成本低廉。 通过将该荧光体掺入UV,紫色或蓝色发光器件中,可以获得发光器件。