摘要
用固相法制备出了Eu^2＋，Dy^3＋共掺杂Sr4Al7O25：Eu^2＋，Dy^3＋、SrAl2O4：Eu^2＋，Dy^3＋长余辉发光材料。研究了硼酸含量对其制备过程及发光性能的影响。用XRD对所合成材料进行物相分析，用荧光光谱仪记录其发射光谱，并在暗室里拍摄紫外激发下的发光照片。结果表明：随着硼酸加入量的不同，Eu^2＋、Dy^3＋共掺杂铝酸锶的发光效果、形貌特征均不同。在某一范围内，随着硼酸添加量的增加，材料的发光性能、发光亮度均有所提高，烧结温度有所降低。
Long persistence phosphor of Eu^2＋, Dy^3＋ co-doped Sr4Al7O25：Eu^2＋, Dy^3＋ and SrAl2O4：Eu^2＋, Dy^3＋ were prepared by solid-state reaction method. The influence of B2O3 addition on the prepare process and luminescent properties of Eu^2＋,Dy^3＋ co-doped alkaline earth aluminates were studied by varied contents of B2O3. To analysis the role of B2O3, phase identification was carried out by X-ray powder diffraction, and emission spectra were recorded using a luminescence spectrometer, luminescence photo were taken in a dark room after excited by UV. The results indicated that with the increase of B2O3 contents, luminescence property and appearance character for Eu^2＋, Dy^3＋ co-doped strontium aluminates long persistence phosphor were different. In some range, with the increase of B2O3 contents, luminescence property and luminescence intensity was enhanced, but the sintering temperature was lowed.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2007年第A01期132-134,共3页
Journal of Functional Materials
基金
基金项目：天津市科技发展计划资助项目（06TXTJJC14400）
天津市科委基金资助项目（06YFJMJC02600）
高等学校博士学科点专项科研基金资助项目（20060058001）
关键词
助熔剂
长余辉发光材料
发光性能
flux
long afterglow phosphor
luminescent properties
