Preparation of Eu3+-Y3+ coactivating Na+ based red-emitting luminous materials for light-emitting diodes and investigation of its characteristics.

By solid-state reaction and doping, a series of red-emitting phosphors Na(x)Y(0.92-x/3)(MoO(4))(y)(WO(4))(1-y)O(0.5) : zEu(3+) have been synthesized.