Yb^(3+),Eu^(3+)共掺杂BaSiO_(3)上/下转换发光与能量传递研究  

Study on Yb^(3+),Eu^(3+)Co-doped BaSiO_(3)Up/Down Conversion

作　　者：纳治国 朱慧敏 吐尔逊·艾迪力比克 巴合提古丽·阿斯里别克 NA Zhiguo;ZHU Huimin;TUERXUN Aidilibike;BAHETIGULI Asilibike(Yili Normal University,Yining 835000,China)

机构地区：[1]伊犁师范大学,新疆伊宁835000

出　　处：《河南科技》2024年第19期78-82,共5页Henan Science and Technology

基　　金：伊犁师范大学2021年度博士科研专项资助计划项目(BSZX2021018)。

摘　　要：【目的】研究BaSiO_(3)掺杂Yb^(3+),Eu^(3+)的上转换发光特性,为开发荧光防伪技术提供试验基础。【方法】采用高温固相法合成了一系列BaSiO_(3):Yb^(3+),Eu^(3+)荧光粉,利用X射线衍射仪(XRD)、稳态光谱仪等设备对样品的物相结构和发光特性进行表征。【结果】XRD结果表明,Yb^(3+)离子、Eu^(3+)离子成功进入硅酸钡晶格且对基质晶格没有产生影响。980 nm激发下,BaSiO_(3):1%Yb~3荧光粉发射峰位于483 nm,这归因于Yb^(3+)二聚体合作发光。进一步用980 nm激光器激发BaSiO3:Yb^(3+),Eu^(3+)荧光粉,同时出现了483 nm Yb^(3+)二聚体的发射光谱和575~705 nm处Eu^(3+)离子的发射光谱,表明Yb^(3+)二聚体通过上转换合作发光将能量传递给Eu^(3+)离子,此时的色坐标为(0.4989,0.3505),色温为1840 k。【结论】该材料的研究在防伪、太阳能电池和照明等方面具有潜在应用价值。[Purposes]The up-conversion luminescence properties of BaSiO_(3)doped Yb^(3+),Eu^(3+)were studied,which provided experimental basis for the development of fluorescent anti-counterfeiting tech⁃nology.[Methods]A series of BaSiO_(3):Yb^(3+),Eu^(3+)phosphors were synthesized by high-temperature solidphase method.The physical structure and luminescence properties of the samples were characterized us⁃ing X-ray diffractometer(XRD)and steady state spectrometer.[Findings]The XRD results showed that Yb^(3+)ions and Eu^(3+)ions successfully entered the barium silicate lattice and had no effect on the matrix lat⁃tice.980 nm excitation showed that the emission peak of BaSiO_(3):1%Yb3 phosphor was located at 483 nm,which was attributed to the cooperative luminescence of Yb^(3+)dimer.Further excitation of BaSiO_(3):Yb^(3+),Eu^(3+)phosphor with a 980 nm laser resulted in simultaneous emission spectra of the Yb^(3+)dimer at 483 nm and Eu^(3+)ions at 575~705 nm,suggesting that the Yb^(3+)dimer transfers its energy to the Eu^(3+)ions through upconversion co-luminescence.The color coordinates are(0.4989,0.3505),and the color temperature is 1840 k.[Conclusions]Therefore,the study of this material has potential applications in anti-counterfeiting,solar cells and lighting.

关 键 词：稀土掺杂 荧光光谱 上转换发光 合作发光 色坐标 

分 类 号：TQ422[化学工程]