PEG20000对Ca2SiO4:Eu^2+绿色荧光粉发光性能及形貌的影响  

Effect of PEG20000 on Luminescence Performance and Morphology of Ca2SiO4:Eu^2+Green Phosphor

作　　者：周仁迪 季甲 杨桃红 舒名燕 杨光普 袁其娇 ZHOU Ren⁃di;JI Jia;YANG Tao⁃hong;SHU Ming⁃yan;YANG Guang⁃pu;YUAN Qi⁃jiao(Kaili University,Kaili,Guizhou,556011,China)

机构地区：[1]凯里学院大健康学院,贵州凯里556011

出　　处：《凯里学院学报》2020年第3期41-44,共4页Journal of Kaili University

基　　金：凯里学院2018年校级大学生创新创业训练计划项目(CX201840,CX201839)。

摘　　要：采用溶胶凝胶法,以PEG20000作表面活性剂,在氮气气氛下于1100℃合成了Ca2SiO4:Eu^2+绿色荧光粉,并通过X射线衍射仪、扫描电子显微镜和荧光分光光度计分析了样品的晶体结构、晶体形貌和发光性能,研究了PEG20000在不同浓度下样品的晶体形貌变化规律及对发光性能的影响.实验表明,加入适量的PEG20000,样品的晶体结构不会发生变化;样品的晶体形貌随PEG20000浓度的增加出现了花絮状组织;PEG20000的加入能有效的提高样品的发光强度,当PEG20000浓度为0.06 g/mL时,发光强度最大.Ca2SiO4:Eu^2+green phosphor was synthesized by Sol-gel method under nitrogen atmosphere at 1100℃,PEG20000 as surfactant.The phase structure,morphology,elements and luminescent properties of samples were characterized and analyzed in detail by X-ray diffraction(XRD),Scanning electron microscope(SEM),photo luminescence(PL).The experiment shows that the crystal structure of the sample does not change when PEG20000 is added.The shape of sample was flower-like patterns and the luminous intensity is the strongest with the increase of PEG20000 concentration.When the concentration of PEG20000 was 0.06 g/mL,the luminous intensity is strongest.

关 键 词：荧光粉 表面活性剂 PEG20000 发光性能 

分 类 号：TQ422[化学工程]