Semiconducting Behaviour of Metal Thin Film composed of Green Synthesized Silver Nanoparticles

Abstract

Here, we demonstrated an easy, clean and eco-benign synthetic protocol for silver nanoparticle production from silver nitrate salt using Indian bay leaf (Cinnamomum tamala) extract. Production of silver nanoparticle was monitored at periodic intervals through ultra-violet visible spectroscopy (UV-Vis). X-ray powder diffraction (XRD) and high resolution electron microscopy (HRTEM) respectively indicated the crystal phases and shape of prepared nanoparticles. Infra-red spectroscopy (FTIR) of the nanoparticles revealed the role of functional organic molecules involved in surface capping and stabilization of the particles. Thin film of green synthesized silver nanoparticles was deposited carefully and then connected to regulated DC voltage to realize the conducting behaviour. The obtained result signified the semi-conductive behavior of silver thin film at ambient temperature.