Superhydrophobic surfaces are widely used in many industrial settings, which mainly consist of rough solid protrusions that entrap air to minimize the liquid/solid area. The stability of the superhydrophobic state favors a relatively small spacing between protrusions. However, this in turn increases the lateral adhesion force that retards the mobility of drops. Thus, the simultaneous optimization of both stability of the Cassie state and minimization of the lateral adhesion force remains a great challenge for SHPOS with high performance.
