{Reference Type}: Journal Article
{Title}: A laser-processed micro/nanostructures surface and its photothermal de-icing and self-cleaning performance.
{Author}: Wang W;Chang J;Chen L;Weng D;Yu Y;Hou Y;Yu G;Wang J;Wang X;
{Journal}: J Colloid Interface Sci
{Volume}: 655
{Issue}: 0
{Year}: 2024 Feb 5
{Factor}: 9.965
{DOI}: 10.1016/j.jcis.2023.10.158
{Abstract}: Micro/nanostructures have garnered significant attention and widespread applications in areas such as photocatalysis, coated fabrics, microchips, and sensors. However, high-resolution and multifunctional micro/nanostructures fabrication remains a great challenge. In this work, a novel self-assembly-femtosecond laser processing for the regular micro squares and nano bumps surface on steel substrates is proposed, and a great potential in the field of anti-icing/de-icing and self-cleaning is demonstrated. The surface tension gradient-driven liquid-air self-assembly provides a silica microsphere monolayer, while the post-femtosecond laser process can give precise micro/nano decoration. We systematically explore the impact of laser repetition frequency, scanning speed, and laser incident power on the size and shape of micro/nano decorations that have been studied. The different performances of self-cleaning effects, ice adhesion, and the photothermal de-icing capability due to the change in surface wettability have been demonstrated. This research shows a new pathway for the creation of smart micro/nanostructures surface which possess stable super hydrophilic and highly adhesive superhydrophobic properties, as well as high abrasion resistance. The discovery achieves a suitable blend of multiple functions on the surface of a single material, which can be applied to various surface engineering fields.