B i3+掺杂对 YAG :C e3 +荧光粉发光性能的影响

The Photoluminescence of Bi³⁺Doping YAG:Ce³⁺Phosphors

摘要: B i3+ 掺杂Y A G : C e3+ 荧光粉由溶胶凝胶法合成 . 结构和结晶过程分析表明, 其结晶程度良好 .光谱分析表明, B i3+ 的掺杂可以使 C e 3+ 的荧光峰位红移 .C e3+ 的荧光强度随 B i 3+ 掺杂浓度的增加而增加, 这是由 B i 3+ 与C e3+ 之间的能量传递引起的 .之后随着掺杂浓度的继续增加 C e3+ 的荧光强度减小, 这是由浓度猝灭所致 .

Abstract: The Bi³⁺doping YAG:Ce³⁺phosphors were successfully synthesized. The red shift of Bi³⁺doping YAG:Ce³⁺ phosphor’s photoluminescence (PL) peak was observed in the PL spectra. The intensity of PL peaks was enhanced with the increasing of Bi³⁺ concentration and then decreased with higher concentration of Bi³⁺. The effect of energy transfer between Bi³⁺，Ce³⁺and the concentration quenching were discussed