Y_2O_3∶Eu^(3+)薄膜的制备及发光性能的研究  

Study on Luminescence Properties of Y_2O_3∶Eu Film

作　　者：黄永平[1] 

机构地区：[1]长沙大学应用化学与环境科学系,湖南长沙410003

出　　处：《感光科学与光化学》2007年第2期110-114,共5页Photographic Science and Photochemistry

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.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 simered at appropriate temperature, the Y2O3 ： Eu^3＋ thin film is formed. Influence of concentration of Eu^3＋ and sintered temperature to the luminescence intensity of film is researched in this paper. The optimal concentration of Eu^3 ＋ 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.

关 键 词：溶胶-凝胶法 Y2O3:Eu^3+薄膜 原子力显微镜 

分 类 号：O614.322[理学—无机化学]