Patent ID: 8980132
Filing Date: 2015-03-17
Classification: C09K,H01L

Abstract:
1. A luminescent material, which has a chemical formula of aM 2 O.bLn 2 O 3 .cAl 2 O 3 .dR 2 O 3 .eSiO 2 .fCeO 2 .gTb 2 O 3 or aMO.bLn 2 O 3 .cAl 2 O 3 .dR 2 O 3 .eSiO 2 .fCeO 2 .gTb 2 O 3 , wherein, M is alkaline earth metal or alkali metal, Ln is selected from one or two elements of the group consisting of yttrium and gadolinium, R is selected from one or two elements of the group consisting of boron and phosphorus, the a, b, c, d, e, f, and g are molar fractions, and 6≦a≦20, 3≦b≦12, 20≦c≦30, 32≦d≦45, 0≦e≦12, 0.01≦f≦1, and 0.05≦g≦1.5.