Synthesis of CaAlSiN3:Eu2+ nitride phosphors from entire oxides raw materials and their photoluminescent properties

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 2 O 3 , and Eu 2 O 3 , through a common carbothermal 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.