科研之友
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摘要
A new strategy derived from seed-mediated growth was applied to attach and grow dense and uniform silver nanoparticles (AgNPs) on indium tin oxide (ITO) thin films deposited on glass substrate. This approach allowed obtaining narrower nanoparticle's size distribution and a much denser attachment compared with the classical seed-mediated growth method. Adjusting growth time permitted preparing relatively small and uniform Ag nanoparticles of less than 40 nm in size. The size, density and the regularity of AgNPs were found to be slightly affected by the nature of ITO substrate, which thus affects the plasmon absorbance spectra. The observed differences are attributed to the cavities existing between large grains and sub-grains of ITO thin films.
