红色荧光粉KGd(WO_4)_2:Sm^(3+)的制备及发光性能  

Preparation and photoluminescence of a red-emitting phosphor KGd(WO_4)_2:Sm^(3+)

作　　者：林莹[1] 高绍康[1] 王桂美[1] 施伟梅[1] 

机构地区：[1]福州大学化学化工学院,福建福州350002

出　　处：《福州大学学报（自然科学版）》2008年第1期134-137,共4页Journal of Fuzhou University(Natural Science Edition)

基　　金：福建省教育厅科研资助项目(JB05017)

摘　　要：采用高温固相法合成KGd(WO4)2:Sm3+荧光粉,样品在近紫外区404nm光激发下发射出Sm3+的特征光谱.通过X射线粉末衍射、荧光光谱等对其进行了表征,并分析了其发光特性,结果表明:在KGd(WO4)2:Sm3+中Sm3+离子最佳的掺杂量为5%(摩尔分数);烧结温度为1 000℃、助熔剂H3BO3的浓度为2%(摩尔分数)时,样品的发光强度最强.A red - emitting KGd （ WO4 ） 2 ： Sm^3＋ was synthesized by solid - state reaction. It can be effectively excited by ultraviolet （404 nm）, and exhibits a satisfactory red performance. X - ray diffraction and photoluminescence spectra were employed to characterize its spectra property. The results show that the optimal concentration of Sm^3＋ in KGd（ WO4） 2： Sm^3＋ is about 5% （mol） and the proper amount of flux should be around 2% （mol）. The emission intensity becomes stronger as the firing temperature increases from 900 to 1 000℃.

关 键 词：KGd(WO4):Sm^3+ 红色荧光粉 光谱性质 高温固相法 

分 类 号：O614.33[理学—无机化学]