| abstract |
A novel yellow-emitting phosphor is represented by the general formula: Ca 1-x AlSi 4 N 7 :Eu x , and includes calcium (Ca), aluminum (Al), silicon (Si), europium (Eu), and nitrogen (N). In the general formula, x is preferably within a range of 0.001<x≦0.15. The yellow-emitting phosphor emits yellow light, which is a complementary color to blue, when excited by blue light and hence can be used to produce warm white light by being combined with a blue light emitting device. |