在预先用聚多巴胺薄膜处理的玻璃基底上,采用溶胶-凝胶法制备出三氧化钨(WO3)薄膜,用X射线衍射(XRD)和扫描电子显微镜(SEM)表征手段来分析其物相组成和形貌特征。对WO3薄膜在UV光照射下和黑暗的环境中发生亲水/疏水转换的现象进行研究,最后得出WO3薄膜表面润湿性转化的机理。
Tungsten oxide(WO3) thin film is successfully formed on the glass substrate,whose surface is pre-modified with polydopamine(PDA) film.The as-prepared film is characterized by X-ray diffraction(XRD) and scanning electron microscopy(SEM).The WO3 thin film exhibited hydrophilic/hydrophobic conversion un-der UV light irradiation and dark environment.The mechanism of wettability conversion on WO3 film is stud-ied.