COATED NARROW BAND GREEN PHOSPHOR
    1.
    发明申请
    COATED NARROW BAND GREEN PHOSPHOR 审中-公开
    涂层窄带绿色荧光粉

    公开(公告)号:WO2018080936A1

    公开(公告)日:2018-05-03

    申请号:PCT/US2017/057719

    申请日:2017-10-20

    Abstract: A coated phosphor may comprise: phosphor particles comprised of a phosphor with composition (M)(A) 2 S 4 : Eu, wherein: M is at least one of Mg, Ca, Sr and Ba; and A is at least one of Ga, Al, In, Y; a dense impermeable (pinhole-free) coating of an oxide material encapsulating individual ones of the phosphor particles. The coated phosphor is configured to satisfy one or more of the conditions: (1) under excitation by blue light, the reduction in photoluminescent intensity at the peak emission wavelength after 1,000 hours of aging at about 85°C and about 85 % relative humidity is no greater than about 30%; (2) the change in chromaticity coordinates CIE(y), ΔCIE y, after 1,000 hours of aging at about 85°C and about 85% relative humidity is less than about 5 x 10 -3 ; (3) said coated phosphor does not turn black when suspended in a 1 mol/L silver nitrate solution for at least two hours at 85°C; (4) said coated phosphor does not turn black when suspended in a 1 mol/L silver nitrate solution for at least one day at 20°C; and (5) said coated phosphor does not turn black when suspended in a 1 mol/L silver nitrate solution for at least 5 days at 20°C.

    Abstract translation: 涂覆的磷光体可以包括:由组成为(M)(A)2 S 4:Eu的磷光体组成的磷光体颗粒,其中: M是Mg,Ca,Sr和Ba中的至少一种; A是Ga,Al,In,Y中的至少一种; 封装单个磷光体颗粒的氧化物材料的致密不可渗透(无针孔)涂层。 涂覆的磷光体被配置为满足以下条件中的一个或多个:(1)在蓝光激发下,在约85℃和约85%相对湿度下老化1000小时后峰值发射波长处的光致发光强度的降低为 不大于约30%; (2)在约85℃和约85%相对湿度老化1000小时后,色度坐标CIE(y),ΔCIEy的变化小于约5×10 -3; (3)所述涂覆的磷光体在85℃下悬浮于1mol / L硝酸银溶液中至少2小时时不变黑; (4)所述涂覆的磷光体在20℃下悬浮于1mol / L硝酸银溶液中至少一天时不变黑; 和(5)当在20℃下悬浮在1mol / L硝酸银溶液中至少5天时,所述涂覆的磷光体不变黑。

    COATINGS FOR PHOTOLUMINESCENT MATERIALS
    3.
    发明申请
    COATINGS FOR PHOTOLUMINESCENT MATERIALS 审中-公开
    涂料用于光致变色材料

    公开(公告)号:WO2013070902A1

    公开(公告)日:2013-05-16

    申请号:PCT/US2012/064133

    申请日:2012-11-08

    Abstract: The teachings are generally directed to phosphors having combination coatings with multifunctional characteristics that increase the performance and/or reliability of the phosphor. The teachings include highly reliable phosphors having coatings that contain more than one inorganic component, more than one layer, more than one thicknesses, more than one combination of layers or thicknesses, a gradient-interface between components, a primer thickness or layer to inhibit or prevent leaching of phosphor components into the coatings, a sealant layer to inhibit or prevent entry of moisture or oxygen from the environment, a mixed composition layer as a sealant and multifunctional combination coatings.

    Abstract translation: 该教导通常涉及具有增加荧光体的性能和/或可靠性的具有多功能特性的组合涂层的荧光体。 该教导包括具有包含多于一种无机组分,多于一层,多于一种厚度,多于一层或多层组合的涂层的高度可靠的荧光体,组分之间的梯度界面,底漆厚度或抑制或 防止荧光体组分浸入涂层中,抑制或防止水分或氧从环境进入的密封剂层,作为密封剂的混合组合物层和多功能组合涂层。

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