NOVELTY - The silicon containing support (1) comprises a superhydrophobic outer surface, which is formed by a single layer of beads (5) that are treated with fluorosilane and/or fluorosiloxane compound having a hydrophobic organic group to form a fluorinated hydrophobic outer coating (6), and intermediate and/or primary layers. The silicon containing support has two opposite faces (2, 3). The outer surface has more than 99% of silicon dioxide. The beads of the outer layer have an average optical diameter of 70-300 nm, and a particle size of less than 20 nm.    USE - The silicon containing support such as a glass wall is useful in a solar panel such as a photovoltaic panel for collecting solar energy (all claimed).    ADVANTAGE - The transparent or translucent silicon containing support has excellent crushing and abrasion resistances and high flexibility, reduces the reflectance of solar panels, and prevents dust from adhering to the panel thus improving the performance of the solar panel.    DETAILED DESCRIPTION - The silicon containing support (1) comprises a superhydrophobic outer surface, which is formed by a single layer of beads (5) that are treated with fluorosilane and/or fluorosiloxane compound having a hydrophobic organic group to form a fluorinated hydrophobic outer coating (6), and intermediate and/or primary layers. The silicon containing support has two opposite faces (2, 3). The outer surface has more than 99% of silicon dioxide. The beads of the outer layer: have an average optical diameter of 70-300 nm, and a particle size of less than 20 nm that is less than 20% with respect to particles of visible monolayer; and are connected together by a binder adapted to attach the beads to the faces of the support or to the primary layer of the support. The binder is adapted to form and/or maintain a network of pores and/or cracks between the beads. The outer layer is disposed on a support layer or on primer layers (4) including a first layer and an inner monolayer of beads having more than 99% of silicon dioxide. The beads of inner monolayer have an average optical diameter of greater than 30 nm that is 10% less than the average optical diameter of the beads of the outer layer, and a particle size of less than 20 nm that is less than 10% with respect to the total number of particles of the inner monolayer. The beads (95%) of inner monolayer have an average particle size of 80-150 nm and 95% of silicon dioxide. The inner monolayer of the first layer forms, on the face of the support, a continuous layer of beads having 90% of silicon dioxide and an average optical diameter of greater than 30 nm that is less than the average optical diameter of the outer layer. The beads of the outer layer form a discontinuous layer such that portions of the inner monolayer are not covered by the beads of the outer layer. The fluorinated hydrophobic outer coating: covers the discontinuous layer of the outer layer; is a fluorinated polysiloxane coating, where each silicon atom of the coating is associated with a fluorinated aliphatic group having 6-10 carbon atoms and 12 fluorine atoms; and is a single layer having a thickness that is equal to the length of the silicon atom associated with the fluorinated aliphatic group. The beads of outer and/or inner layers are a mixture of silicon dioxide and titanium dioxide, where ratio of titanium dioxide/silicon dioxide is 0.005-0.01.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of a glass wall.    Support (1)    Two opposite faces (2, 3)    Primer layer (4)    Beads (5)    Fluorinated hydrophobic outer coating. (6)