Spectroscopic Evaluation of Optical Parameters of a Transition Metal Salt Filled Polymer Material

M. Banerjee; Amit Jain; G. S. Mukherjee

doi:10.14429/dsj.68.12331

M. Banerjee Nano Science and Nanotechnology Laboratory, School of Physics, Devi Ahilya University, Indore – 452 001
Amit Jain Department of Engineering Sciences and Humanities, Indore Institute of Science and Technology, Indore – 453 331
G. S. Mukherjee DRDO-Defence Scientific Information and Documentation Centre, Delhi – 110 054

DOI: https://doi.org/10.14429/dsj.68.12331

Keywords: Polymer, Metal salt, Optical material

Abstract

Transition metal salt, manganese chloride was incorporated into polyvinyl alcohol (PVA) to prepare metal salt filled polymer material (M-PVA) and their optical properties were evaluated. XRD, UV-vis, and FTIR analyses reveal that there is strong interaction between PVA and the manganese chloride salt. From XRD analysis, the inter-chain separation in pristine PVA and M-PVA was found to be 5.62 Ǻ and 4.70 Ǻ, respectively; thus indicating that the packing of polymer chains is more compact under the influence of manganese chloride. Optical band gap of PVA was found as 5.06 eV but such band gap was reduced on incorporation of manganese chloride into the PVA matrix system with corresponding increase in optical conductivity. Spectral evaluation indicates that refractive index of M-PVA decreases faster than that of PVA in the visible range. Abbe Number was found to have decreased on incorporation of manganese chloride into the PVA matrix system indicating increase in optical dispersion in conformity with the trend of increase in dispersion energy (Ed). The average interband oscillator wavelength was found close to the respective values of absorption edges.

Author Biographies

M. Banerjee, Nano Science and Nanotechnology Laboratory, School of Physics, Devi Ahilya University, Indore – 452 001

Dr Mandira Banerjee is Professor of Physics in Devi Ahilya University, Indore. Her present research interests are microstructural, optical and magnetic properties of nano-materials and polymers including nano-composites. She has successfully completed research projects sponsored by different National funding Agencies including DRDO and is carrying on new projects in contemporary fields involving use of synchrotronradiations.

Amit Jain, Department of Engineering Sciences and Humanities, Indore Institute of Science and Technology, Indore – 453 331

Mr Amit Jain obtained his MSc (Physics) and MPhil (Physics) from School of Physics, Devi Ahilya University, Indore. Currently pursuing his PhD from Devi Ahilya University Indore. He received best presentation award in two International conferences held in India.

G. S. Mukherjee, DRDO-Defence Scientific Information and Documentation Centre, Delhi – 110 054

Dr G.S. Mukherjee received his MTech, PhD from Calcutta University. He was also a member of DRDO Think Tank. He is recipients of Indian National Science Academy (INSA) visiting Fellowship; International recognitions–‘Sentinel of Science (Materials Sci.)-2016’; and ‘Publons Peer Review Award-2017’. He is a Fellow Royal Society of Chemistry (FRSC). His current research interest is in materials systems, siloxane modified resins.