研究目的
To review recent progress of the photo-responsive wettability on the superwetting surface and their typical applications, particularly on switchable wettability on photo-responsive surfaces and their applications including droplet actuation, adhesion control, liquid printing and oil-water separation.
研究成果
Despite much progress in the field of photo-responsive wettability on the superwetting surfaces, there are still numerous challenges remaining in practical applications. The chapter concludes with personal points on the prospects and remaining challenges of the photo-responsive wettability surfaces.
研究不足
Most of the photo-responsive surfaces are limited to laboratory research and not suitable for practical applications. The sensitivity and stability of the photo-responsive materials should be improved to enhance the response speed, precision and maneuverability.
1：Experimental Design and Method Selection:
The chapter reviews the switchable wettability on photo-responsive surfaces including inorganic-oxide, organic-compound, and polymer-based photo-responsive surfaces.
2：Sample Selection and Data Sources:
The study focuses on materials from inorganic materials to organic small molecules and polymer materials.
3：List of Experimental Equipment and Materials:
Includes typical oxide semiconductor such as ZnO, V2O5, SnO2, Ga2O3, and WO3, and organic compounds like azobenzenes, spiropyrans, diarylethene, cinnamates.
4：Experimental Procedures and Operational Workflow:
Describes the fabrication of light-responsive smart surfaces behaving reversibly wettability switch and their applications.
5：Data Analysis Methods:
The wettability change is analyzed based on the chemical group changes under photoirradiation, resulting in the surface free energy change and the surface wettability transition.
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