Functional Surfaces of Laser-microstructured Silicon Coated with Polymer Blends Switching Between Hydrophilicity and Hydrophobicity

We develop functional surfaces of laser-microstructured silicon, spin-coated with thermoresponsive PS/PNIPAM polymer blends and we study their switching wetting behavior between hydrophilicity and hydrophobicity upon heating. The transition is reversible for multiple heating/cooling cycles.