可逆光致变色的Ag@TiO2纳米复合膜（英文）

为了防止活性等离子体对下层银膜的破坏,采用多晶TiO2半导体烧结靶,使用射频磁控溅射方法在纯氩等离子气氛中制备了大面积均匀的TiO2、Ag@TiO2薄膜。为了了解其结构与电子和光学特性间的相互作用,对TiO2和TiO2/Ag/TiO2样品的制备参数(如射频功率、总压和直流电压的共同影响)进行了研究。采用掠入射X射线衍射、紫外可见吸收、拉曼光谱等技术研究了根据其结构调整光学性能的可能性。结果显示,沉积的TiO2薄膜具有与在氩气和氧气混合气氛中沉积所得薄膜相似的形貌、电子和光学特性、能隙带宽和晶相;且所制备的Ag@TiO2薄膜银具有可逆的光致变色特性,可作为智能窗、多波长光存储器和可擦写高密度电子纸使用。

Reversible Photochromic Ag@TiO_2 Nanocomposite Film

In order to protect the Ag underlayer against reactive plasma,large-scale uniform TiO2 film and Ag@TiO2 films were prepared by RF magnetron sputtering in pure Ar plasma using polycrystalline TiO2 semiconductor sintered target.TiO2 and TiO2/Ag/TiO2 samples,with particular attention to the combined influence of RF power,total pressure and DC potential,were studied to obtain a better understanding of the interaction of the structure with electronic and optical properties.Grazing incidence XRD,ultraviolet-visib...