Reversible wettability of a chemical vapor deposition prepared ZnO film between superhydrophobicity and superhydrophilicity
Reversible wettability of a chemical vapor deposition prepared ZnO film between superhydrophobicity and superhydrophilicity
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DOI：
10.1021/la036280o
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发表时间：
2004-07-06
期刊：
影响因子：
3.9
通讯作者：
Zhu, DB
中科院分区：
文献类型：
--
作者：
Liu, H;Feng, L;Zhu, DB
采用金催化化学气相沉积法制备了超疏水ZnO薄膜。薄膜表面呈现出纳米结构在亚微米结构上的层次结构。水接触角（CA）为164.3 °，经紫外光照射后变为超亲水性（CA <5 °），可通过避光或加热恢复。该膜与基体结合紧密，具有良好的稳定性和耐久性。用扫描电子显微镜和原子力显微镜对表面结构进行了表征。
A superhydrophobic ZnO thin film was fabricated by the Au-catalyzed chemical vapor deposition method. The surface of the film exhibits hierarchical structure with nanostructures on sub-microstructures. The water contact angle (CA) was 164.3degrees, turning into a superhydrophilic one (CA < 5degrees) after UV illumination, which can be recovered through being placed in the dark or being heated. The film was attached tightly to the substrate, showing good stability and durability. The surface structures were characterized by scanning electron microscopy and atomic force microscopy.