Manganese doped zinc silicate luminescent phosphors with...

Details Manganese doped zinc silicate luminescent phosphors with... Manganese doped zinc silicate luminescent phosphors with...

C - Chemistry, Metallurgy

09

K

31/176

C09K 11/59 (2006.01) C09K 11/08 (2006.01) C09K 11/63 (2006.01) C09K 11/64 (2006.01) C09K 11/70 (2006.01) C09K 11/71 (2006.01) C09K 11/74 (2006.01) C09K 11/75 (2006.01)

Patent

CA 1135045

MANGANESE DOPED ZINC SILICATE LUMINESCENT PHOSPHORS WITH III-V OXIDE SUBSTITUTIONS Abstract of the Disclosure A series of solid solutions in the systems Zn2SiO4-Zn2M??M??04, is synthesized by practice of this disclosure. Solid reaction technique is used where M+3 and M+5 signify ions from Groups III and V of the periodic table. Large increases in the efficiency compared to the prior art Pl phosphor (Zn2 SiO4:Mn) are achieved by substituting various combinations of Group III and V oxides for SiO2, e.g., Al and P to provide Zn2-yMnySi1-2xAlxPxO4. The photoluminescence efficiency of the phosphors of this disclosure exhibit strong dependence on the III-V substitution concentration, x, having highest efficiency for the approximate range of x = 0.25% to 1.5%. Y0979005

345519

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