| abstract |
The present invention provides a phosphor, including a constituent having the formula Ca p Sr q M m -A a -B b —O t —N n :Z r in which M selected from the group of magnesium, barium, beryllium and zinc; A selected from the group of aluminum, gallium, indium, scandium, yttrium, lanthanum, gadolinium and lutetium; B selected from the group of silicon, germanium, tin, titanium, zirconium and hafnium; Z selected from the group of europium and cerium; 0<p<1; 0<q<1; 0≦m<1; 0≦t≦0.3; 0.00001≦r≦0.1; a=1, 0.8≦b≦1.2; and 2.7≦n≦3.1. Moreover, the normalized dissolved content of strontium of the phosphor is 1˜20 ppm, thereby obtaining a high brilliance phosphor in the 600˜680 nm region. In addition, the present invention at the same time provides a high brilliance light emitting device. |