Crush-free long-persistence fluorescent powder and its synthesis

A non-crushing long-persistence fluorescent powder and its synthesis are disclosed. The chemical formula is (Al-x-yDxEy)O .a(G1-zHz)203, A is selected from one or above of alkaline metals Mg, Ca, Sr, Ba and dibasic metal Zn; D is activator EU, E is selected from one or above of co-activator rare-ear...

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Bibliographic Details
Main Author TOSHINOBU,RONG FUKUI
Format Patent
LanguageEnglish
Published 20.06.2007
Subjects
ADHESIVES
CHEMISTRY
DYES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
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Summary:A non-crushing long-persistence fluorescent powder and its synthesis are disclosed. The chemical formula is (Al-x-yDxEy)O .a(G1-zHz)203, A is selected from one or above of alkaline metals Mg, Ca, Sr, Ba and dibasic metal Zn; D is activator EU, E is selected from one or above of co-activator rare-earth elements Dy, Nd, Pr, Ho, Er, Tm, Yb, Y, Lu and other elements Ni, Mn, Zr, Nb, Ti, Sb, Li, Ge, In and W; O is oxygen, G is selected from one or above of mother crystal Al or Si; H is selected from one or above of mother crystal B, Ga, F and P; and the range of x, y, z and a is between 0.0001<=x<=0.5; 0.0001<=y<=0.3; 0.0001<=z<=0.5; 0.5<=a<=4.5.
Bibliography:Application Number: CN20051123130