摘要
系统地研究了YAG:Tb荧光粉的合成和发光特性。结果表明:采用高温固相反应法在1400℃可以合成不含杂相的YAG:Tb荧光粉;铽含量的变化对YAG:Tb荧光粉激发光谱没有影响,而对发射光谱和亮度有明显的影响;随着铽含量的增加,荧光粉的亮度逐渐升高,没有出现明显的浓度猝灭现象;随着镓含量的增加,荧光粉的亮度先增加后减小,激发光谱主峰向短波方向移动,发射光谱也发生明显变化。
The synthesis and spectral properties of YAG：Tb phosphor were investigated.The results show that the single pure YAG：Tb phosphor powder can be synthesized at 1400 ℃ by solid state reaction.The Tb concentration has no influence on the excited spectra of the phosphor,while it changes the emission spectra and the relative brightness of the phosphor obviously.The relative brightness of the phosphor increases gradually with the growing Tb concentration.There is no obvious concentration quenching phenomenon in the experiment.The relative brightness of the phosphor increases first and then decreases with Ga doping.The excited spectra and emission spectra of the phosphor doped with Ga changes independently.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2011年第7期1268-1270,共3页
Rare Metal Materials and Engineering
基金
高等学校科技创新工程重大项目培育基金项目(707029)
