热处理过程对Ag_2O-SiO_2复合薄膜光学性能的影响  

The Influence of Heat-treatment on Optical Properties of Ag_2O-SiO_2 Composite Thin Films

作　　者：何峰[1] 李锦[1] 

机构地区：[1]武汉理工大学硅酸盐材料工程教育部重点实验室,湖北武汉430070

出　　处：《玻璃与搪瓷》2008年第2期6-11,16,共7页Glass & Enamel

基　　金：湘潭大学低维材料及其应用技术教育部重点实验室开放研究基金资助项目(KF0603)

摘　　要：利用溶胶-凝胶法在浮法玻璃上制备了Ag2O-SiO2复合薄膜,通过改变热处理温度和时间得到不同条件下的试样。利用GD751型紫外-可见分光光度计和RF-5301PC型荧光光度计研究了试样的光吸收性能和光致发光性能,并对其发光机理进行初步探讨。在nAg/nSi=0.03的浓度下,探讨热处理温度与时间对Ag2O-SiO2复合薄膜光学性能的影响。在本实验中,当热处理温度为500℃时,复合薄膜的光学性能相对较好。银颗粒的尺寸和化学状态对Ag2O-SiO2复合薄膜的发光性能影响非常大。The Ag2O - SiO2 composite thin films were prepared on float glass by sol - gel process. Different samples were gained by changing the heat -treatment schedule. Optical absorption and photoluminescence of those samples were analyzed, and the luminescence mechanism has been proposed. In this test when the heat - treatment temperature was 500℃, the best optical properties of Ag2O -SiO2 composite thin films could be obtained. Meanwhile, the particle size and the chemical status of Ag were very sensitive to the optical properties of Ag2O - SiO2 composite thin films.

关 键 词：复合薄膜 表面等离子体共振吸收 光致发光 热处理 

分 类 号：TQ171.112[化学工程—玻璃工业]