International Science Community Association Research Journal of Physical Sciences 2320 - 4796 3 6 2015 August 4 Effect of Reactant concentration on Structural and Optical properties of ZnS - PVA nanocomposite 16 19 EN Atsor A.J. 1 Department of Physics, Benue State University Makurdi, Benue State, NIGERIA Akpa T.C. 2 Akombor A.A. 3 Samantaray S. 1 Department of Physics, Christ College, Cuttack-753003, Odisha, INDIA Paikaray R. 2 Department of Physics, Ravenshaw University, Cuttack-753001, Odisha, INDIA Sahoo G. 3 Institute for Plasma Resaerch, Bhat, Gandhinagar, Gujarat-382428, INDIA Das P. 4 Ghosh J. 5 Deka D.C. 1 Department of Instrumentation and USIC, Gauhati University, Guwahati -781014, Assam, INDIA Bordaloi S. 2 > Research Paper 2015 6 22 2015 August 4 ZnS-PVA nanocomposite thin films are deposited on glass substrate by chemical route. Effect of reactant concentration on the as synthesized ZnS-PVA nanocomposites are studied by taking three different concentrations of zinc source keeping the sulphur source concentration fixed. For structural and morphological studies the as synthesized thin films are characterized by using XRD and TEM. The X-ray diffractogram of the samples show wurtzite structure with preferred orientations along (002), (110) and (112) planes. The crystallite sizes of the films are found to vary from 3.54 - 4.09 nm which are in good agreement with TEM results. The bandgap of the synthesized nanomaterials are calculated using UV- visible spectral analysis and bandgap plot. The bandgap value is found to be within the range 3.7-3.8eV. Also we have used photoluminescence study to identify the defects in the nanostructure. Copyright@ International Science Community Association