Process for producing electroluminescent yellow zinc sulfide phosphors
    5.
    发明授权
    Process for producing electroluminescent yellow zinc sulfide phosphors 失效
    电致发光黄色硫化锌荧光粉的制备方法

    公开(公告)号:US5009808A

    公开(公告)日:1991-04-23

    申请号:US462922

    申请日:1990-01-11

    IPC分类号: C09K11/61

    CPC分类号: C09K11/612

    摘要: A phosphor composition consisting essentially of particles of zinc sulfide electroluminescent phosphor activated with from about 0.7% by weight of about 1.3% by weight of manganese, based upon the total weight of the phosphor composition, wherein the electroluminescent emission of the phosphor has an x color coordinate value of from about 0.522 to about 0.532 and a y color coordinate value of from about 0.460 to about 0.470 and an efficiency of greater than about 5.6 lumens per watt at 115V/400 Hz. A solid state process for producing the foregoing phosphor comprises a multiple firing in order to incorporate manganese, chloride and copper ions into the zinc sulfide lattice. Controlled levels of manganese yield highly efficient electroluminescent phosphors.

    摘要翻译: 基于荧光体组合物的总重量,基本上由基于硫化金属电致发光荧光体的颗粒组成的磷光体组合物,其以约0.7重量%的约1.3重量%的锰为基准,其中荧光体的电致发光发射具有x颜色 约0.522至约0.532的坐标值和约0.460至约0.470的ay色坐标值,以及在115V / 400Hz下大于约5.6流明/瓦特的效率。 用于制造上述荧光体的固态方法包括多次烧制以将锰,氯化物和铜离子掺入硫化锌晶格中。 锰的控制水平产生高效的电致发光荧光体。