Metal nanoparticle doped coloured coatings on glasses and plastics through tuning of surface plasmon band position

摘要

Several noble metal nanoparticles doped sola€“gel derived thin coloured films have been synthesized and characterized. These are pure (Ag, Au, Cu and Pt), mixed/alloy (Aga€“Cu, Aua€“Cu, Aua€“Ag and Aua€“Pt) nanoparticles in SiO₂, Au in mixed SiO₂a€“TiO₂ and SiO₂a€“ZrO₂, Au and Ag nanoparticles in inorganica€“organic hybrid film matrices etc. This investigation leads to the development of tailor-made coloured coatings by tuning the surface plasmon resonance (SPR) band positions originating from the embedded nanometals by controlling mainly