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    • 2. 发明申请
    • Method for preparing high brightness luminescent material and high brightness luminescent material
    • 制备高亮度发光材料和高亮度发光材料的方法
    • US20060124901A1
    • 2006-06-15
    • US10542999
    • 2003-12-26
    • Chaonan XuKeiko NishikuboShuxiu ZhangMichio ObataHiroaki Tanno
    • Chaonan XuKeiko NishikuboShuxiu ZhangMichio ObataHiroaki Tanno
    • C09K11/77
    • C09K11/7734
    • A method for preparing fine particles of a high brightness luminescent material improved in crystallinity; and a high brightness luminescent material prepared by the method. In an embodiment, BaMgAl10O17:Eu (BAM) as a high brightness luminescent material is prepared by a method which comprises providing an aqueous solution containing an aluminum alcoholate and water-soluble compounds of barium, magnesium and europium, adding an acid to the aqueous solution to form an acidic solution, heating the acidic solution to ca.900° C. and conducting a calcination at the temperature for a short time, and subsequently, firing the calcined product at a temperature higher than that for the calcination, for example, 1400° C. or higher. The method allows the preparation of BAM which comprises spherical fine particles having a pure phase and being improved in crystallinity, and thus is reduced in the deterioration by heat or VUV.
    • 一种制备提高结晶度的高亮度发光材料的微粒的方法; 和通过该方法制备的高亮度发光材料。 在一个实施方案中,通过包括提供含有醇铝和水的水溶液的方法制备作为高亮度发光材料的BaMgAl 10 O 17:Eu(BAM) 的钡,镁和铕的可溶性化合物,向该水溶液中加入酸形成酸性溶液,将酸性溶液加热至约900℃,并在该温度下进行短时间煅烧,随后进行烧成 煅烧产物的温度高于煅烧产物,例如1400℃或更高。 该方法允许制备包含具有纯相的球形微粒并且结晶度提高的BAM,从而减少由热或VUV引起的劣化。