Eu^2＋，Dy^3＋掺杂铝酸锶长余辉发光材料的研究  

Study on long persistence phosphor of Eu^2＋, Dy^3＋ co-doped alkaline earth aluminates

作　　者：王光辉[1] 梁小平[1] 顾玉芬[2] 

机构地区：[1]天津工业大学改性与功能纤维天津市重点实验室,天津300160 [2]兰州理工大学材料科学与工程学院,甘肃兰州730050

出　　处：《功能材料》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）

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.

关 键 词：助熔剂 长余辉发光材料 发光性能 

分 类 号：TQ422[化学工程]