Synthesis of YAG:Ce phosphor via different aluminum sources and precipitation processes

摘要

Ce~(3+)-doped yttrium aluminum garnet (YAG:Ce) phosphors were synthesized by the four different precipitating processes, in which aluminum nitrate or aluminum ammonium sulfate was used as the aluminum source. Pure YAG:Ce powder can be obtained by using aluminum nitrate combine normal strike precipitation method as calcined at 850 deg C for 2 h. The property of YAG powder is affected by the cation homogeneity of precursor powder. The product formed by aluminum nitrate combine normal strike precipitation method has the highest emission peak at 535 nm after excitation at 470 nm.