(Ce_(0.67)Tb_(0.33))MgAl_(11)O_(19)荧光粉的溶胶-凝胶法合成及发光性能

Synthesis of (Ce_(0.67)Tb_(0.33))MgAl_(11)O_(19)phosphors by sol-gel process and its luminescent properties

采用溶胶凝胶法合成（Ｃｅ０．６７Ｔｂ０．３３）ＭｇＡｌ１１Ｏ１９绿色荧光粉。利用ＴＧ－ＤＴＡ和ＸＲＤ等实验技术，研究了荧光粉的形成过程，找出了最佳合成条件，并对其粉体形貌和发光性能进行研究。结果表明，用溶胶凝胶法合成的（Ｃｅ０．６７Ｔｂ０．３３）ＭｇＡｌ１１Ｏ１９是一种性能优良的荧光粉。

Ce0.67Tb0.33)MgAl11O19 green phosphors were synthesized by a sol-gal process. The formation process was investigated by means of TG-DTA and XRD and a optimum synthesis process was found. Morphology, microstructure and luminescent properties were studied. Results show that (Ce0.67Tb0.33)MgAl11O19 phosphors synthesized by a sol-gel process is an efficient green-emitting phosphors.