PHOSPHATE NANO PHOSPHOR AND METHOD OF PREPARING THE SAME
    4.
    发明申请
    PHOSPHATE NANO PHOSPHOR AND METHOD OF PREPARING THE SAME 有权
    磷酸盐纳米磷光体及其制备方法

    公开(公告)号:US20090114880A1

    公开(公告)日:2009-05-07

    申请号:US12262429

    申请日:2008-10-31

    IPC分类号: C09K11/70

    摘要: Provided is a phosphate nano phosphor with a mean particle diameter of 100 to 3000 nm. Also provided is a method of preparing a nano phosphor, the method comprising: dissolving two or more species of metal precursor compounds in water, and then adjusting the pH to prepare an aqueous solution of pH 4-10; coprecipitating the aqueous solution by mixing with a phosphate precursor aqueous solution with the pH adjusted to 7-12; and redispersing the particles obtained from the coprecipitation in water or polyol solvent, and then heat treating the particles. The phosphate nano phosphor according to the present invention has superior light emission efficiency compared with conventional nano phosphors.

    摘要翻译: 提供平均粒径为100〜3000nm的磷酸盐纳米磷光体。 还提供了制备纳米磷光体的方法,所述方法包括:将两种或更多种金属前体化合物溶解在水中,然后调节pH以制备pH 4-10的水溶液; 通过与pH调节至7-12的磷酸盐前体水溶液混合来共沉淀水溶液; 并将从共沉淀得到的颗粒再分散在水或多元醇溶剂中,然后热处理颗粒。 根据本发明的磷酸盐纳米磷光体与常规纳米磷光体相比具有优异的发光效率。