Synthesis of silver nanoparticles by sparking process

Abstract

Silver nanoparticles (Ag NPs) were synthesized by sparking process. The NPs were continuously deposited onto the substrate by varying the number of sparking cycles ranging from 100-200 and deposited on the glass substrate and annealing at 250-500 °C for 1 hr. The effect of Ag NPs on their structure and optical characteristics were investigated. The optical properties of the NPs have been studied from by Raman spectroscopy and UV-vis spectrophotometer. The morphology of Ag NP was characterized by Scanning Electron Microscope (SEM) and Atomic force microscope (AFM). The results have shown mainly spherical structure of Ag NPs in diameter ranging from 80-100 nm. This study demonstrated that the Ag NPs can be synthesized by sparking process and simply with low cost. © 2016 Trans Tech Publications, Switzerland.