摘要
利用超声喷雾方法在玻璃基板上喷涂SnO2 :F薄膜 ,制备了低辐射玻璃 (Low E玻璃 ) .通过光谱测量 ,得到其可见光透过率为 85 %以上 ,在近红外波段出现高反射 .利用四探针测量仪 ,测量其面电阻在 2Ω/cm2 以下 .扫描电镜测量结果表明膜的均匀性较好 ,平均颗粒直径约在 5 0nm .利用等离子体截止波长理论 ,解释了低辐射玻璃红外反射的物理机制 .
Low-emission glass is prepared by spraying SnO 2:F films on glass substrate using ultrasonic spray deposition method. Transmission in visible region is over 85%, and high reflectance appears in near-infrared region. The sheet resistance is below 2 Ω/cm 2 measured by a four-point probe. SEM observation indicates that the average particle size is 50 nm with good uniformity. The physical mechanism about reflection of low-emission glass in near-infrared region is explained by using plasma cut-off frequency theory .
出处
《物理实验》
北大核心
2004年第12期16-19,共4页
Physics Experimentation
