Al3+改性CaMoO4:Pr3+荧光粉的发光性能  

Luminescence Properties of Al3+ Modified CaMoO4:Pr3+ Phosphors

作　　者：韩亚洁 史磊 刘涵 张志伟 HAN Yajie;SHI Lei;LIU Han;ZHANG Zhiwei(College of Chemical Engineering,Hebei Normal University of Science & Technology,Qinhuangdao Hebei,066600,China)

机构地区：[1]河北科技师范学院化学工程学院

出　　处：《河北科技师范学院学报》2019年第2期55-59,共5页Journal of Hebei Normal University of Science & Technology

摘　　要：采用高温固相法合成了Al^3+掺杂的CaMoO4:Pr^3+系列荧光粉,通过X射线衍射仪(XRD)、荧光光谱仪等仪器对样品的物相、组成、结构及发光性能等进行了表征。X射线衍射结果表明,本次试验成功制备了CaMoO4:Pr^3+,Al^3+系列荧光粉,Pr^3+离子和Al^3+离子的共掺杂没有改变CaMoO4基质的晶体结构;荧光光谱表明,CaMoO4:Pr^3+,Al^3+的3P0→3H6跃迁的发光强度随Al^3+离子掺杂浓度的增加呈先增大后降低的变化趋势,当Al^3+离子掺杂浓度为0.07时,发光强度达到最大,说明添加一定量的Al^3+可以提高CaMoO4:Pr^3+材料的发光强度。Al^3+-doped CaMoO4:Pr^3+ phosphors were synthesized by high temperature solid-state method. The phase, structure and luminescent properties of the samples were characterized by X-ray diffraction (XRD) and fluorescence spectrometer. XRD results showed that CaMoO4:Pr^3+ and Al^3+ phosphors were successfully synthesized. When Pr^3+ and Al^3+ ionswere introduced into CaMoO4 host, the crystal structuredid not change. The photoluminescence emission spectra indicated that the luminescence intensity of the transition 3P0→ 3H6 of CaMoO4:Pr^3+, Al^3+ increased first and then decreasedwith the increase of doping concentration of Al^3+ ions. When the doping concentration of Al^3+ was 0.07, the luminescence intensity reachedthe maximum, indicating that adding a certain amount of Al^3+ can improve the luminescence intensity of CaMoO4:Pr^3+ phosphors.

关 键 词：荧光粉 CaMoO4:Pr^3+ Al^3+改性 发光性能 

分 类 号：O482.31[理学—固体物理] TN104.3[理学—物理]