COMPOSITE SYSTEM COMPRISING A MATRIX AND SCATTERING ELEMENTS, PROCESS FOR PREPARING IT AND USE THEREOF

A composite system for light diffusion comprises a matrix of a material that is transparent to light; the matrix contains a dispersion of scattering elements having a core that is a nanocluster of inorganic nanoparticles, and a shell comprising silane compounds and dispersing agents; the nanocluster having average dimensions in the range of 20 nm to 300 nm.