NaYF_4和NaGdF_4对稀土掺杂纳米粒子上转换发光性能的影响  

Effect of Nayf_4 and Na Gdf_4 on Upconversion Luminescence in Rard Earth Doped Nanoparticles

作　　者：王倩[1] 张国海[1] 李岩[1] 张静[1] 吕强[1,2] 

机构地区：[1]牡丹江师范学院理学院,黑龙江牡丹江157011 [2]黑龙江省肿瘤疾病防治重点实验室牡丹江医学院,黑龙江牡丹江157011

出　　处：《牡丹江医学院学报》2015年第2期18-20,17,共4页Journal of Mudanjiang Medical University

基　　金：牡丹江师范学院2014研究生学术科技创新项目(yjsxscx2014-18mdjnu)

摘　　要：目的探索基质成分对上转换发光性能的影响。方法采用热解法合成Na YF4:Yb3+,Er3+和Na Gd F4:Yb3+,Er3+;通过TEM、XRD和荧光光谱等方法表征样品的形貌、结构和发光性能;研究Na YF4和Na Gd F4基质对稀土掺杂纳米粒子上转换发光性能的影响。结果 Na YF4作为基质材料时的上转换发光要优于Na Gd F4。结论 Na YF4:Yb3+,Er3+纳米粒子能实现高效上转换发光,并可作为纳米荧光标记物应用于医学诊断。Objective To explore the effect of host materials on upconversion luminescence in rare earth doped nanoparti -cles.Methods NaYF4：Yb3＋,Er3＋and NaGdF4：Yb3＋,Er3＋ were prepared by thermal decomposition reaction.The morphology, structure , and luminescence property of samples were charactered by TEM , XRD and fluorescence spectrophotometer.Results Upcon-version luminescence intensity of NaYF 4：Yb3＋,Er3＋nanoparticles is superior to NaGdF 4：Yb3＋,Er3＋.Conclusion It is concluded that NaYF4：Yb3＋,Er3＋nanoparticles can emit efficient upconversion luminescence , and then have great potential to be used as nano-probe for fluorescence biolabels in the future.

关 键 词：上转换 纳米粒子 NaYF4:Yb3+ Er3+和NaGdF4:Yb3+ ER3+ 

分 类 号：R35[医药卫生—基础医学]