SYNTHESIS AND CHARACTERIZATION OF PVA-ENCAPSULATED ZNS NANOPARTICLES
Journal Title: International Journal of Engineering Sciences & Research Technology - Year 30, Vol 5, Issue 4
Abstract
A systematic study is presented on the synthesis of PVA capped ZnS nanoparticles by using precursor solution of ZnCl2 and Na2S by a simple chemical precipitation method and characterized by X-ray diffraction (XRD), Transmission electron microscopy (TEM), UV-visible absorption spectroscopy and impedance spectroscopy. The XRD patterns confirm formation of wurtzite hexagonal phase of ZnS with size ranging 2 to 6 nm. TEM studies have shown decrease in particle size with improve morphology on capping of PVA in ZnS latt ice and Optical absorption spectra of synthesized material reveal blue shift in the optical band gap confirm quantum confinement effect of ZnS powder. Enhancement of conductivity in PVA- capped ZnS nanoparticles have been obtained from impedance measurements at different temperatures and suitably correlated to Davis- Mott model.
Authors and Affiliations
Harit Kumar Sharma
Keywords
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- DOI 10.5281/zenodo.50436
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