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ZINC SILICATE BASED GREEN FLUORESCENT MATERIAL AND PROCESS FOR PRODUCING THE SAME

机译:基于锌硅酸盐的绿色荧光材料及其生产工艺

摘要

PURPOSE: A zinc silicate based green fluorescent material having excellent luminous efficiency in vacuum ultraviolet and stable physical properties under high vacuum and method of preparing the same by doping zinc silicate with manganese oxide and, if necessary, with a co-activator selected from aluminum oxide, gallium oxide and titanium oxide are provided which are suitable for plasma display panels (PDP) due to the short afterglow time. CONSTITUTION: The zinc silicate based green fluorescent material of formula; Zn2-aSi1-bO4 : aMn, bM, wherein a and b are 0 ≤ a ≤ 0.15, 0 ≤ b ≤ 0.02, respectively, and M is an element selected from Al, Ga and Ti is prepared by mixing silicate prepared using zinc oxide and silica as phosphor raw material with manganese oxide and a co-activator selected for aluminum oxide, gallium oxide and titanium oxide, calcining at 1,100 to 1,350°C, heating at 900 to 1,200°C under reducing atmosphere and grinding.
机译:用途:基于硅酸锌的绿色荧光材料,在真空紫外线下具有优异的发光效率,在高真空下具有稳定的物理性能,其制备方法是通过向硅酸锌中掺杂氧化锰以及必要时掺入选自氧化铝的助活化剂由于余辉时间短,因此提供了适用于等离子显示面板(PDP)的氧化镓和氧化钛。组成:分子式为硅酸锌的绿色荧光材料; Zn 2 -aSi 1 -bO 4:aMn,bM,其中a和b为0。一个≤ 0.15,0≤ b≤ M是选自Al的元素,M是选自Al的元素,Ga和Ti是通过将使用氧化锌和二氧化硅作为磷光体原料制备的硅酸盐与氧化锰和选自氧化铝,氧化镓和氧化钛的共活化剂混合而制备的,在1100至1350℃下煅烧,在还原气氛下在900至1200℃下加热并研磨。

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