Abstract
We demonstrated that wettability of metal-dome and polymer-pillar hybrid structured surfaces regulated by difference of dome density. The metal-dome and polymer-pillar hybrid surface was prepared by simple all-wet electroless plating of self-organized honeycomb-patterned porous films, and was composed of three independent components; micro-scaled metal-domes, nano-scaled polymer-pillars, and air pockets. The metal-dome density was changed from 0 to 100% only by temperatures of the catalytic solution before electroless plating. Water contact angles of the hybrid surfaces having different dome density were well conformed to the Cassie-Baxter equation. It was obvious from the results that the Cassie-Baxter equation could be adapted to structural surfaces composed of three components.
