Phosphor, preparing method for phosphor, and light emitting device
AssigneeChi Mei Corporation
InventorsYao-Tsung Chuang, Jen-Shrong Uen
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Abstract
A phosphor, a preparing method for the phosphor, and a light emitting device are provided. The phosphor has a formula of A3−xCexQ5O12. A and Q are independently comprise Al, Ga, In, Sc, Y, La, Gd, Tb, Lu elements or combinations thereof. Ce represents a cerium element. O represents an oxygen element. 0<x≦3. The phosphor contains 100 ppm˜2000 ppm of Ba element.
Claims17
A phosphor, comprising a formula of A3−xCexQ5O12, wherein the A and the Q independently comprise aluminum (Al), gallium (Ga), indium (In), scandium (Sc), yttrium (Y), lanthanun (La), gadolinium (Gd), terbium (Tb), lutetium (Lu), or a combination thereof, Ce is cerium, O is oxygen, 0<x≦3, and the phosphor contains 100 ppm˜2000 ppm of barium (Ba).
A phosphor, comprising a formula of A3−xCexQ5O12, wherein the A and the Q independently comprise aluminum (Al), gallium (Ga), indium (In), scandium (Sc), yttrium (Y), lanthanun (La), gadolinium (Gd), terbium (Tb), lutetium (Lu), or a combination thereof, Ce is cerium, O is oxygen, 0<x≦3, and the phosphor contains 200 ppm˜800 ppm of Si.
Dependencies are inferred from the claim text.