Eu^(3+)掺杂Ba_(2)LaZrO_(5.5)基荧光粉的制备及发光研究

Manufacture of Eu^(3+)Doped Ba_(2)LaZrO_(5.5) Base Phosphor and Its Luminescent Properties Research

以溶胶凝胶法制备了Ba_(2)LaZrO_(5.5):Eu^(3+)荧光粉,探讨溶液的pH值、焙烧温度和掺杂Eu^(3+)的量对荧光粉的结构和发光的影响。证实了当pH=3、焙烧温度为800℃时Ba_(2)LaZrO_(5.5):21%Eu^(3+)荧光粉为立方体钙钛矿结构;在280nm激发下基质Ba_(2)LaZrO_(5.5)在468nm处有较强的蓝光发射,而Ba_(2)LaZrO_(5.5):21%Eu^(3+)荧光粉在612nm处有Eu^(3+)的红光发射峰最强。