PLASMON RESONANCE IN SILVER AND GOLD NANOCLUSTERS OBTAINED UPON REDUCTIVE ADSORPTION ON SILICAS WITH DIFFERENT SURFACES

摘要

A study was carried out on plasmon resonance in silver and gold nanoclusters immobilized by reductive adsorption on the hydridopolysiloxane surface. Nanocluster sizes were determined by scanning electron microscopy. An increase in the diameter of the nanoclusters from 10 to 80 nm was found to lead to a shift in the maxima of the plasmon absorption bands towards longer wavelengths. The experimental data correspond to the calculated energies of the plasmon transitions in nanoclusters of given size.