The wetting of gold and silicon nanoscale arrays.
The relative hydrophobicity of surfaces containing highly regular, nanoscale (<100 nm) topological features (50 nm diameter, 5 nm height, 100 nm spacing) was measured and compared with their flat counterparts. The results are described in the context of both the Wenzel and Cassie models for wetting rough surfaces. Wenzel-type wetting is observed for these high areal density nanostructures (approximately 10(10)/cm2) whose aspect ratios range from 0.2 to 0.7.
Meli
Maria-Victoria
MV
Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 2K6, Canada.
Lennox
R Bruce
RB