Gil, C.C.GilGarcia-Heras, M.M.Garcia-HerasCarmona, N.N.CarmonaVillegas, M.A.M.A.Villegas2022-03-032022-03-032004https://publica.fraunhofer.de/handle/publica/20566610.3989/revmetalm.2004.v40.i2.254Amorphous silica-based materials bulk and superficially doped with silver nanocolloids were prepared. Bulk doped glasses were obtained by conventional melting and doped monolithic slabs by sol-gel. Superficially doped glasses were obtained by ion-exchange and doped coatings by sol-gel. The samples were characterised by TEM and UV-VIS spectrophotometry. Depending on the composition, the silver incorporation process, and the thermal treatments, several colourings were obtained. By controlling these parameters, metallic silver nanocolloids can be generated in the matrices studied. Colloids aggregation and growing up depends on the matrix nature and on the experimental process carried out.en666669journal article