【摘 要】
：
采用熔融-淬冷法制备了铋离子掺杂无碱锌铝磷酸盐(ZAP)玻璃,采用红外光谱表征了它们的网络结构,并研究了它们的近红外荧光性质.结果表明：和碱金属铝磷酸盐(AAP)玻璃和碱土金属铝磷酸盐(AEAP)玻璃相比,铋离子掺杂ZAP玻璃表现出更高的近红外荧光发射强度和荧光寿命.当在470nm,690nm或808nm激发时,它们被的荧光强度以下的顺序按照逐渐降低：ZnO＞CaO＞SrO＞BaO＞Li2O ＞N
【机 构】
：
硅酸盐建筑材料国家重点实验室(武汉理工大学),武汉430070 硅酸盐建筑材料国家重点实验室(武汉
【出 处】
：
第七届中国功能玻璃学术研讨会暨新型光电子材料国际论坛
论文部分内容阅读
采用熔融-淬冷法制备了铋离子掺杂无碱锌铝磷酸盐(ZAP)玻璃,采用红外光谱表征了它们的网络结构,并研究了它们的近红外荧光性质.结果表明：和碱金属铝磷酸盐(AAP)玻璃和碱土金属铝磷酸盐(AEAP)玻璃相比,铋离子掺杂ZAP玻璃表现出更高的近红外荧光发射强度和荧光寿命.当在470nm,690nm或808nm激发时,它们被的荧光强度以下的顺序按照逐渐降低：ZnO＞CaO＞SrO＞BaO＞Li2O ＞Na2O ＞K2O.通过在1100nm,1260nm和1400nm的激发光谱,确认了在ZAP,AAP和AEAP玻璃中存在着3种不同类型的Bi发光中心.并结合红外光谱,讨论了网络外体阳离子种类对Bi发光中心的影响.此外,还研究了熔制温度和铋离子掺杂浓度对ZAP玻璃近红外荧光性质的影响.
其他文献
We report the preparation of uniform spherical shape silver nanocrystals doped sodium borosilicate monolithic transparent glass by sol-gel method.The characterization of the resulting Ag nanocrystals
A wide variety of activation ions have been used as near infrared (NIR) luminescent centres.However, when it comes to persistent luminescence, the numbers of known activators are relatively low.Here,
Based on the sintering of ytterbium doped nanoporous glass, a non-chemical-vapor-deposition process is proposed for the preparation of the active silica glass that aims for the fabrication of large mo
The 1.8 μm emission properties of Tm3+-doped zinc tellurite glasses modified by the substitution of ZnF2 are investigated in this paper.The thermal stability, Raman and phonon sideband spectra, transm
采用高温熔制法制备含稀土离子(V2O5+CeO2+SnO2)的Li2O-Al2O3-SiO2(LAS)系微晶玻璃,利用紫外-可见光谱(UV-Vis)、差热分析(DTA)、X射线衍射(XRD)及扫描电镜(SEM)等方法研究了着色剂成分对LAS微晶玻璃着色、核化及晶化过程的影响规律.结果表明：不同稀土离子组成可使LAS微晶玻璃呈现出褐色至黑色的可控颜色变化；稀土离子的加入基本不影响LAS微晶玻璃的晶相
We demonstrate all-solid optical fibers combined with fluoride and chalcogenide glasses.They are thermally matched in order to be drawn from a hybrid preform directly.The refraction difference between
A novel Tm3+-doped lead silicate glass with good thermal stability was prepared in this work.Various concentrations of Tm2O3 ranging from 0.1wt%, 1wt%,2wt%, 3wt%, 4wt% to 5wt% were doped into the glas
Yb3+/Al3+ co-doped silica glasses modified with different amounts of fluorine were prepared by sol-gel method combining with high temperature sintering.The optical and spectroscopic properties of thes
The Stark energy level splitting of Yb3+ ion in Fluorophosphate (FP) and Phosphate (P) glasses is derived from the low temperature absorption and emission spectra, respectively.It is shown that the St
配合料导热性能是影响玻璃生产能耗的决定性因素,通过配合料微观结构设计控制研究,提高配合料热传递能力,有助于促进料层温度的整体均匀性,提高配合料熔化速率(见图1).以玻璃配合料主要成分硅砂为例,通过研磨处理改变配合料粒度构成,并对配合料导热性能进行测试,研究分析配合料粒度对导热性能的影响规律.实验采用Hot Disk热常数分析仪.实验结果表明：不同硅砂粒度配合料的导热系数、热扩散系数均成呈抛物线变化