覆盖铝的不连续锡膜结构及光学性质研究

该文研究了不连续锡膜上覆盖铝膜的光学性质.发现覆盖铝对不连续锡膜的光学性质影响很大,增强了可见光区的光谱选择吸收和红外反射率.不连续锡膜的填隙因子对这种膜系的光学性质影响较大.应用所建立的结构模型和Maxwell-Garnett理论,计算了这种双层结构膜的反射曲线,结果与实验基本相符.这种膜系具有各种美丽的反射色,有可能作为新型的建筑、灯具、室内等装饰用的镜面材料.

OPTICAL PROPERTIES OF GRANULAR Sn FILMS WITH Al COATING

The optical properties of the granular Sn films coated with Al films are studied. The experimental results indicate that the Al coating strongly affects the optical properties of the granular Sn films, enhancing the spectrum selectivity of solar energy in the visible region and the reflectance near the IR region. The filling factor Q of granular Sn films obviously influences the optical properties of the films system. Based on the installed structure model and the Maxwell-Garnett theory, the reflective spectra are calculated. The calculated results agree with the experimental cnes. It is also found that the Al coated granular Sn films have various kinds of reflective colors, thus they may be used as decorative mirrors for many purposes.