摘要
铝酸盐稀土材料作为新一代的发光材料,具有发光时间长、波长可调节、亮度高等特点。采用高温固相法制备铝酸盐稀土发光材料,同时研究了发光材料的发光性。首先采用燃烧法合成铝酸镁、铝酸钙、铝酸锌基质;然后采用高温固相法通过原料分配、原料混合、烘干、煅烧以及后处理制备完成铝酸盐稀土发光材料;最后利用荧光分光光度计测量制备样品材料的激发光谱与发射光谱。研究结果表明,激发波长不会影响发射光波长与光强度的关系,MgAl2O4∶Tb3+、CaAl2O4∶Tb3+的发射光谱呈现窄带跃迁发射状态;激活剂稀土因子Eu3+质量分数为6%、温度为1 300℃时,发光材料发射峰强度达到最大值,发光强度最优。
As a new generation of luminescent materials,rare earth-aluminates materials have the characteristics of long luminescence time,adjustable wavelength and high brightness.Rare earth-aluminate luminescent materials are prepared by high temperature solid phase method and their luminescence properties are studied.Firstly,magnesium aluminate,calcium aluminate and zinc aluminate matrix are respectively synthesized by combustion method.Then aluminate-rare earth luminescent materials are prepared by high temperature solid phase method through raw materials distribution,raw material mixing,drying,calcining and post-treatment.Finally,fluorescence spectrophotometer is used to measure the excitation and emission spectra of sample materials.The results show that the excitation wavelength does not affect the relationship between emission wavelength and light intensity,and the emission spectra of MgAl2O4∶Tb3+and CaAl2O4∶Tb3+show a narrow-band transition emission state.The emission peak intensity of luminescent materials reaches the maximum value and the luminescence intensity is optimal when the mass fraction of rare earth factor Eu3+is 6%and the temperature is at 1 300℃.
作者
吴春雷
WU Chun-lei(College of Physics and Electronic Engineering,Mudanjiang Normal University,Mudanjiang 157011,China)
出处
《现代化工》
CAS
CSCD
北大核心
2019年第8期197-202,共6页
Modern Chemical Industry
基金
黑龙江省教育厅项目(1351MSYYB001)
关键词
高温固相法
铝酸盐稀土
激发光谱
发光
稀土因子
光强度
high temperature solid phase method
aluminates/rare earth
excitation spectrum
luminescence
rare earth factor
light intensity
