[发明专利]一种氮化物发光材料及采用该发光材料制成的发光器件

权利要求书

1.一种氮化物发光材料，其特征在于：该发光材料同时含有二价金属元素M、稀土元素R、IIIA族元素L以及钇、硅、氮、氧，其通式为M_2-aL_bY_cSi_5-3(b+c)/4N_8-2d/3O_d:R_a，其中，M为Mg、Ca、Sr、Ba中的至少一种；L为B、Al和Ga中的至少一种；R为Ce、Eu、Gd和Lu中的至少一种，且0＜a≤0.1，0＜b≤2.0，0＜c≤1.0，0＜d≤1.0。

2.根据权利要求1所述的氮化物发光材料，其特征在于：所述L为Al，或者是B和Ga中的至少一种和Al。

3.根据权利要求1或2所述的氮化物发光材料，其特征在于：所述通式中的a、b、c、d满足：0.001＜a≤0.1，0.1≤b≤1.0，0.05≤c≤1.0，0＜d≤1.0。

4.根据权利要求1或2所述氮化物发光材料，其特征在于：所述M为Ca、Sr和Ba中的至少一种。

5.根据权利要求1或2所述的氮化物发光材料，其特征在于：所述R为Eu和Ce中的至少一种，且通式中的a满足：0.005≤a≤0.1。

6.根据权利要求5所述的氮化物发光材料，其特征在于：所述R为Eu，且通式中的a满足：0.005≤a≤0.05。

7.根据权利要求1或2所述的氮化物发光材料，其特征在于：所述发光材料形态为多晶薄片、单晶薄片、非晶薄片或粉末。

8.根据权利要求1或2所述的氮化物发光材料，其特征在于：所述发光材料的组成为下列化学式中的一种：

Mg_1.9Al_0.001Y_1.0Si_4.249N_7.333O_1.0:Eu_0.09，Ce_0.01

Mg_1.9Al_0.1Y_1.0Si_4.175N_7.333O_1.0:Eu_0.09，Ce_0.01

Mg_1.9Al_0.5Y_1.0Si_3.875N_7.333O_1.0:Eu_0.09，Ce_0.01

Mg_1.9Al_1.0Y_1.0Si_3.500N_7.333O_1.0:Eu_0.09，Ce_0.01

Mg_1.9Al_2.0Y_1.0Si_2.75N_7.333O_1.0:Eu_0.09，Ce_0.01

Ca_1.92Al_1.5Y_0.001Si_3.874N_7.533O_0.7:Eu_0.075，Gd_0.005

Ca_1.92Al_1.5Y_0.05Si_3.838N_7.533O_0.7:Eu_0.075，Gd_0.005

Ca_1.92Al_1.5Y_0.1Si_3.8N_7.533O_0.7:Eu_0.075，Gd_0.005

Ca_1.92Al_1.5Y_0.5Si_3.5N_7.533O_0.7:Eu_0.075，Gd_0.005

Ca_1.92Al_1.5Y_1.0Si_3.125N_7.533O_0.7:Eu_0.075，Gd_0.005

Sr_1.99Al_0.5Y_0.1Si_4.55N_7.333O_1.0:Eu_0.01

Sr_1.97Al_0.5Y_0.2Si_4.475N_7.333O_1.0:Eu_0.03

Sr_1.955Al_0.5Y_0.3Si_4.4N_7.333O_1.0:Eu_0.045

Sr_1.95Al_1.0Y_0.5Si_3.875N_7.999O_0.001:Eu_0.049，Lu_0.001

Sr_1.95Al_1.0Y_0.5Si_3.875N_7.667O_0.5:Eu_0.049，Lu_0.001

Sr_1.94Al_1.0Y_0.5Si_3.875N_7.333O_1.0:Eu_0.049，Lu_0.001

Sr_1.94Al_1.0Y_0.5Si_3.875N_7.333O_1.0:Eu_0.06

Ba_1.999Al_0.6Y_0.1Si_4.475N_7.533O_0.7:Eu_0.001

Ba_1.995Al_0.6Y_0.1Si_4.475N_7.933O_0.7:Eu_0.005

Ba_1.990Al_0.6Y_0.1Si_4.475N_7.933O_0.7:Eu_0.01

Ba_1.950Al_0.6Y_0.1Si_4.475N_7.933O_0.7:Eu_0.05

Ba_1.90Al_0.6Y_0.1Si_4.475N_7.933O_0.7:Eu_0.10

Mg_1.955B_1.2Y_0.4Si_3.8N_7.467O_0.8:Eu_0.04，Gd_0.005

Ca_1.755Sr_0.2Al_1.0Y_0.4Si_3.95N_7.467O_0.8:Eu_0.04，Ce_0.005

Sr_1.755Ca_0.2Al_1.0Y_0.04Si_3.8N_7.467O_0.8:Eu_0.045

Ca_1.955Ga_1.2Y_0.4Si_3.8N_7.467O_0.8:Eu_0.04，Lu_0.005

Ba_1.755Sr_0.2Al_1.2Y_0.4Si_3.8N_7.467O_0.8:Ce_0.45

Ba_1.755Ca_0.2Al_1.0Ga_0.2Y_0.4Si_3.8N_7.467O_0.8:Ce_0.04，Gd_0.005。