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In this thesis we describe the successful design and fabrication of three distinct high-order hierarchical structures based on silica to invoke super-hydrophobicity and oleophobicity on optically transparent surfaces, which may find application in display screens, solar cell panels and smart windows. These include directly synthesized and highly irregular SiO2 nano-clusters, dual size raspberry-like micro-nano-structures that were self-assembled by electrostatic attraction, and a novel structure of a suspended regular hexagonal mesh comprised of monodisperse silica spheres. Additionally, mechanically durable super-hydrophobic surfaces were created through direct incorporation of various nanostructures by reactive ion etching of different mask materials.
Treball fet en col·laboració amb Universitat Autònoma de Barcelona (UAB), Universitat de Barcelona (UB) i Institut de Ciències Fotòniques (ICFO)
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