一种新型蓝色发光材料Na13Sr2Ta2(PO4)9:Tm3+的合成及性能研究  

Synthesis and Properties of A New Blue Phosphor Na13Sr2Ta2(PO4)9:Tm3+

作　　者：赵丹 赵丹丹 薛亚丽 ZHAO Dan;ZHAO Dan-dan;XUE Ya-li(School of Chemistry and Chemical Engineering,Henan Polytechnic University,Jiaozuo 454000,China;State Key Laboratory of Inorganic Synthesis and Preparative Chemistry,Jilin University,Changchun 130012,China)

机构地区：[1]河南理工大学化学化工学院,河南焦作454000 [2]吉林大学无机合成与制备化学国家重点实验室,长春130012

出　　处：《聊城大学学报（自然科学版）》2020年第5期66-73,共8页Journal of Liaocheng University:Natural Science Edition

基　　金：国家自然科学基金项目(21201056);无机合成与制备化学国家重点实验室(吉林大学)开放课题基金(2020-24)资助。

摘　　要：采用高温固相法制备出了一种新型的蓝色荧光粉Na13Sr2Ta2(PO4)9:xTm^3+.用X射线衍射法(XRD)对样品粉末的纯度和相结构进行了表征.在457 nm发射光的监测下,激发光谱包含一个位于359 nm处的尖锐的激发峰,对应于Tm^3+的3H6→1D2跃迁.在359 nm光激发下,产生457 nm附近的蓝色发射光,归因于Tm^3+离子1D2→3F4跃迁.Tm^3+的最佳掺杂浓度是12%,浓度猝灭的主导机制是偶极-偶极相互作用.变温荧光光谱研究表明,材料Na13Sr1.88Tm0.12Ta2(PO4)9在150℃时的发光强度是起始温度12.5℃时的54.3%.Na13Sr1.88Tm0.12Ta2(PO4)9荧光粉的CIE坐标测定值为(0.153,0.035),对应于蓝光.我们认为,荧光粉Na13Sr2Ta2(PO4)9:xTm^3+具有潜在的发展和应用前景.A new type of blue phosphor Na13Sr2Ta2(PO4)9:xTm^3+was synthesized via high-temperature solid state reaction method.The purity and crystal structure were determined via X-Ray diffraction(XRD)method.By monitoring 457 nm emission,a sharp exciting peak could be observed at 359 nm due to the 3H6→1D2 Under 359 nm excitation,a blue emitting band centered at 457 nm was observed due to the Tm^3+:1D2→3F4 transition.transaction of Tm^3+.The optimized concentration of Tm^3+is 12%,and the concentration quenching effect is mainly caused by Dipole-Dipole interactions.Under 150℃temperature,the emission of Na13Sr1.88Tm0.12Ta2(PO4)9 retrains 54.3%intensity that of 12.5℃.The CIE coordinates of Na13Sr1.88Tm0.12Ta2(PO4)9 was measure to be(0.153,0.035),falling in the blue region.We think phosphor Na13Sr2Ta2(PO4)9:xTm^3+has potential application and further development prospects.

关 键 词：高温固相法 蓝色荧光粉 光致发光 

分 类 号：TB32[一般工业技术—材料科学与工程]