公开(公告)号：US20090212256A1

公开(公告)日：2009-08-27

申请号：US12393690

申请日：2009-02-26

申请人： Gregory Allan Marking ,  Xianzhong Chen ,  Shellie Kaye Northrop

发明人： Gregory Allan Marking ,  Xianzhong Chen ,  Shellie Kaye Northrop

IPC分类号： C09K11/54

CPC分类号： C09K11/584

摘要： A copper activated zinc sulfide electroluminescent phosphor is disclosed, wherein the phosphor comprises greater than about 1,000 ppm copper. Also disclosed is a copper activated zinc sulfide electroluminescent phosphor having a y color coordinate of at least about 0.480. A method for preparing the copper activated zinc sulfide electroluminescent phosphor is disclosed, comprising contacting a zinc sulfide, a first copper source, a magnesium source, and a lithium halide to form a first mixture; heating the mixture at a temperature and for a time sufficient to form a fired mixture; subjecting the fired mixture to a shear force capable of inducing a plurality of defects in the zinc sulfide lattice structure; and then contacting the fired mixture with a second copper source and a zinc oxide to form a second mixture; heating the second mixture at a temperature and for a time sufficient to form a second-fired material.

摘要翻译： 公开了一种铜活化的硫化锌电致发光荧光体，其中磷光体包括大于约1,000ppm的铜。 还公开了具有至少约0.480的y色坐标的铜活化硫化锌电致发光荧光体。 公开了一种制备铜活化硫化锌电致发光荧光体的方法，包括使硫化锌，第一铜源，镁源和卤化锂接触以形成第一混合物; 在足以形成烧制混合物的温度和时间下加热混合物; 使烧制的混合物经受能够引起硫化锌晶格结构中的多个缺陷的剪切力; 然后将烧制的混合物与第二铜源和氧化锌接触以形成第二混合物; 在足以形成二次烧制材料的温度和时间下加热第二混合物。