【摘要】 以稀土氧化物为原料,用溶胶-凝胶法制备前驱液,加入适量的聚乙烯醇做成膜物质,用浸渍拉提法在石英玻璃表面上得到均匀的薄膜,然后经过适当的干燥和热处理得到Y2O3∶Eu3+发光薄膜.讨论了Eu3+的掺杂浓度和热处理温度对薄膜发光性能的影响.试验表明:Eu3+的最佳掺杂浓度为8%(摩尔分数),薄膜的发光性能随热处理温度提高而增强,当热处理温度达到700℃后,薄膜的发光性能基本上稳定.同时用原子力显微镜和X射线衍射分析了薄膜的表面形貌和结构.更多还原

【Abstract】 Y2O3∶Eu thin films were prepared by sol-gel method with inorganic salt as raw materials.PVA is added to sol as a filming additive.The gel film can be prepared by dip-coating technique on the surface of quartz glass.After dryed and sintered at appropriate temperature,the Y2O3∶Eu3+ thin film is formed.Influence of concentration of Eu3+ and sintered temperature to the luminescence intensity of film is researched in this paper.The optimal concentration of Eu3+ is 8%(mol/mol),luminescent properties of film enhanced with the annealing temperature up to 700 ℃.The surface characteristic and structures of film was investigated by AFM and XRD.更多还原