纳米级MgSiO_3∶Mn^(2+),Nd^(3+)红色发光材料的制备及发光性能  

Preparation of nano-MgSiO_3:Mn^(2+),Nd^(3+) red light-emitting material

作　　者：朱亚楠[1] 闫彦红[1] 葛明桥[1] 

机构地区：[1]江南大学纺织服装学院,无锡214122

出　　处：《化工新型材料》2013年第7期33-35,共3页New Chemical Materials

基　　金：国家自然科学基金资助项目(21171074/B010201);江苏省2012年度普通高校研究生科研创新计划项目(CXLX12_0727)

摘　　要：采用静电纺丝法制备MgO,SiO2,Nd2O3,MnCO3与PVA膜混合物,再通过高温固相法制备长余辉发光材料MgSiO3∶Mn2+,Nd3+,对这种红色长余辉材料的发光性能进行了研究。借助SEM对其表面形态进行表征,激发光谱、发射光谱和余辉衰减曲线表征样品的发光性能。研究发现,PVA及纺丝工艺没有对MgSiO3∶Mn2+,Nd3+样品的晶体结构造成破坏,样品发射峰型没有变化,相对可见光样品对紫外光的吸收更好。采用静电纺丝法制备的发光材料与高温固相法制备的发光材料相比其发光性能及粒径都有一定程度的改善。MgO, SiO2,Nd2 03, MnCO3 and PVA film were prepared by electrospinning mixture, then through high- temperature solid-phase preparation of long afterglow luminescence material MgSiO3 = Mn2＋ , Nd3＋ , the red luminescence properties of the material were studied. The morphology characterization of membrane surface by SEM, characterization of sample by x-ray powder diffraction crystal structure and excitation spectra, emission spectra and luminescent decay curve characterization of luminescent properties of the sample were carried out. Study found that PVA and the spinning process not damaged the crystal structure of the sample MgSiO3. ：Mn2＋ , Nd3＋ , the sample emission peak shape did not change, the absorption of sample for ultraviolet light was better compared with visible light. The luminescent propertiesof luminescent material by electrospinning preparation were little better than materialof high-temperature solid-phase method ／and in parti- cle size was significantly smaller nano-level.

关 键 词：静电纺丝 PVA MgSiO3∶Mn2+ Nd3+ 

分 类 号：TN104.3[电子电信—物理电子学]