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    • 64. 发明授权
    • Processes for preparing color stable manganese-doped complex fluoride phosphors
    • 制备颜色稳定的锰掺杂复合氟化物荧光体的方法
    • US09388336B2
    • 2016-07-12
    • US14568396
    • 2014-12-12
    • GENERAL ELECTRIC COMPANY
    • James Edward MurphyWilliam Winder BeersRobert Joseph LyonsFangming Du
    • H01L33/50C09K11/61
    • C09K11/616H01L33/502H01L33/507H01L2224/48247H01L2224/48257H01L2924/181H01L2924/00012
    • A process for preparing a color stable Mn4+ doped complex fluoride phosphor of formula I includes Ax(M(1−m), Mnm)Fy  (I) contacting a first aqueous HF solution comprising (1−m) parts of a compound of formula HxMFy, and a second aqueous HF solution comprising m*n parts of a compound of formula Ax[MnFy], with a third aqueous HF solution comprising (1−n) parts of the compound of formula Ax[MnFy] and a compound of formula AaX, to yield a precipitate comprising the color stable Mn4+ doped complex fluoride phosphor; wherein A is Li, Na, K, Rb, Cs, NR4 or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Hf, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; R is H, lower alkyl, or a combination thereof; X is an anion; a is the absolute value of the charge of the X anion; x is the absolute value of the charge of the [MFy] ion; y is 5, 6 or 7; 0
    • 制备式I的颜色稳定的Mn4 +掺杂复合氟化物荧光体的方法包括与包含(1-m)份式H x M F y的化合物的第一HF水溶液接触的M 1(M(1-m),Mnm) 和包含m * n个分子式Ax [MnFy]化合物的第二HF水溶液与包含(1-n)份式Ax [MnF y]化合物和式AaX化合物的第一HF水溶液 以产生包含颜色稳定的Mn4 +掺杂的复合氟化物荧光体的沉淀物; 其中A为Li,Na,K,Rb,Cs,NR4或其组合; M是Si,Ge,Sn,Ti,Zr,Al,Ga,In,Sc,Hf,Y,La,Nb,Ta,Bi,Gd或它们的组合; R是H,低级烷基或它们的组合; X是阴离子; a是X阴离子电荷的绝对值; x是[MFy]离子的电荷的绝对值; y为5,6或7; 0