Synthesis of CaAlSiN_3:Eu~(2+) nitride phosphors from entire oxides raw materials and their photoluminescent properties

摘要

In this work, Eu~(2+) doped CaAlSiN_3 red-emitting nitride phosphors were synthesized for the first time from less-expensive and air-stable entire oxides raw materials, CaCO_3, SiO_2, Al_2O_3, and Eu_2O_3, through a common car-bothermal reduction and nitridation (CTRN) method. The synthetic reaction processes involving in this CTRN route and the phase components, photoluminescent properties for the resultant CaAlSiN_3:Eu~(2+) nitride phosphors were investigated in detail. The presented synthesis route using cost-effective entire oxides raw materials for preparation of CaAlSiN_3:Eu~(2+) nitride phosphors shows promising prospect in promoting the application of CaAlSiN_3:Eu~(2+) nitride phosphors in solid state lighting.