We have tried by heat treatment method and it requires some corrections. In which, batch chemicals caintaining silver nitrate were melted at 1100 degree and then poured on to te brass plate and annealed for 3 hr at 350 degree. Then it was bring to the room temperature. Further it was heat treated at 400 degree for 10hrs. Tis is the procedure we are following but it requires some optimizations. From TEM analysis, the presence of Ag NPs were conformed but we are not able get SPR band. Please give your suggesions?
The glass samples were obtained by the melt-quenching method using the following composition: 75GeO2-20PbO -10ZnO-5K2O-0.5Er2O3 (GPZK), 75GeO2-20PbO -10ZnO-5K2O-0.5Er2O3 -0.1Ag2O (GPZKA) 80B2O3-10ZnO-10Na2O-1Eu2O3 (BZN) and 80B2O3-10ZnO-10Na2O-1Eu2O3 -0.1Ag2O (BZNA). The reagents were melted in a platinum crucible at 1100-1400℃, and then cooled rapidly to room temperature to prevent reduction and precipitation of the silver. Silver particles were grown by heating at 500℃ for 10, 20, 30, 40,60 minutes.
when Ag is doped more than 10% for example 60B2O3-10ZnO-10Na2O-20Ag, we are not able get SPR band
I am telling you a difficult solution, but there are some reports available to produce nanoparticles embedded matrices of different materials by ion beam irradiation and subsequent annealing. Just look for ion beam irradiation studies for your materials/system in related journals/literature.
The best solution is, request the local glass manufacturer to mix the nanoparticle of your concentration during the production process itself.
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