Fabrication of nanoscale T-shaped reentrant structures and its hydrophobic analysis

The present work proposes a facile method for fabricating robust hydrophobic surfaces with T-shaped reentrant nanostructures based on nano-patterning approach. The prepared surface demonstrates regularly arrangement over a large area. The hydrophobic stability of the prepared surface was analyzed theoretically using the Gibbs free energy approach, followed by being investigated experimentally. Experimental results show that the T-shaped reentrant nanostructures can significantly improve the hydrophobic stability of the surface, which is in line with the theoretical predictions. The proposed preparation method for T-shaped reentrant nanostructures provides a cost-effective and convenient way to fabricate robust hydrophobic surfaces.