Muñoz Noval, ÁlvaroHernando Perez, MercedesTorres Costa, VicenteMartin Palma, Raul J.de Pablo, Pedro J.Manso Silvan, Miguel2025-01-292025-01-292011-12-11Muñoz-Noval, Á.; Hernando Pérez, M.; Torres Costa, V.; Martín Palma, R.J.; De Pablo, P.J.; Manso Silván, M. High Surface Water Interaction in Superhydrophobic Nanostructured Silicon Surfaces: Convergence between Nanoscopic and Macroscopic Scale Phenomena. Langmuir 2012, 28, 1909–1913, doi:10.1021/la2041289.0743-746310.1021/la2041289https://hdl.handle.net/20.500.14352/116758In the present work, we investigate wetting phenomena on freshly prepared nanostructured porous silicon (nPS) with tunable properties. Surface roughness and porosity of nPS can be tailored by controlling fabrication current density in the range 40-120 mA/cm(2). The length scale of the characteristic surface structures that compose nPS allows the application of thermodynamic wettability approaches. The high interaction energy between water and surface is determined by measuring water contact angle (WCA) hysteresis, which reveals Wenzel wetting regime. Moreover, the morphological analysis of the surfaces by atomic force microscopy allows predicting WCA from a semiempiric model adapted to this material.engjournal articlehttps//doi.org/10.1021/la2041289https://pubs.acs.org/doi/full/10.1021/la2041289open access620.1Water contact angleWenzel wetting modelCassie-Baxter modelFísica de materiales3312 Tecnología de Materiales