Jiang Chang-wu, He Xi-qing, Sun Ju-tang, Wu lin-li. HIGH EFFICIENT ULTRAVIOLET-EMITTING PHOSPHOR[J]. Chinese Journal of Luminescence, 1981,2(2): 73-77DOI:
In this Paper the method of preparation of high efficient UV-emitting Gd and Ce-activated calcium phosphate phosphor is described. For example
CaHPO
4
292.0g
CaCO
3
36.0g
Gd
2
O
3
17.5g
CeO
2
30.0g and Na
2
CO
3
flux 10.0g are well mixed and put into alumina crucible
then sintered for 2-4 hours at 1200-1400℃. Thus
Gd and Ce-activated hexagonal μ-Ca
3
(PO
4
)
2
phosphor having emission peak near 350nm upon excitation with 254nm UV light is obtained. The influences of activator concentration and sintering temperature on emission intensity and spectrum are discussed.