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Study of optical and conducting properties of FeCl3 doped PVA polymers
Institution:1. Dept of PG Studies in Physics, Davangere University, Davangere, India;2. Dept of Studies in Physics, Government Science College, Chitradurga, India;3. Dept of Studies and Research in Physics, Manasagangotri, University of Mysore, Mysore, India;1. Academy of Scientific and Innovative Research, CSIR-NPL Campus, New Delhi, India;2. SAED, CSIR-National Physical Laboratory, New Delhi, 110012, India;1. Institute of Electronics, Atomic Energy Research Establishment, Bangladesh Atomic Energy Commission, Dhaka, Bangladesh;2. Dept. of Physics, Jahangirnagar University, Bangladesh;3. Dept. of EEE, Gono Bishwabidyalay, Bangladesh;4. Dept. of ETE, Begum Rokeya University, Bangladesh;5. Dept. of GCE, BUET, Bangladesh;1. Department of Mechanical Engineering, Invertis University, Bareilly, India;2. University School of Chemical Technology, G.G.S. Indraprastha University, New Delhi, India;3. Jaypee University of Information Technology Solan, Himachal Pradesh, India;4. Middle East College, Knowledge Oasis Muscat, Muscat, Oman;1. Department of Physics, Mangalore University, Mangalagangotri 574199, India;2. Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India;3. Department of Chemistry, Mangalore University, Mangalagangotri 574199, India;4. Department of Physics, University of Mysore, Manasagangotri 570006, India;1. College of Physics, Chongqing University, Chongqing, 400030, PR China;2. College of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400030, PR China;3. Chengdu Green Energy and Green Manufacturing Technology R&D Center, Southwest Airport Economic Development Zone, Shuangliu, Chengdu, 610207, PR China
Abstract:In the present work, PVA and various concentrations of FeCl3 doped PVA polymer were prepared and optical studies like IR and UV/Visible analysis were carried out on them in solution form also the cast films were examined for their conductance. The variation of optical band gap of PVA polymer with the addition of Fe3+ transition metal ion has been determined by the Tauc plot method. It is found that the optical band gap and the transmittance of the polymer solutions being decreased with the increase in the concentration of Fe3+ ion, and thus obeys Beer's Law. This is supported by conductivity obtained for these polymers and FT-IR spectra which shows the stretching of the various bonds of the polymer due to the addition of transition metal (Fe3+) ions.
Keywords:IR spectra  UV/Visible transmission & absorbance  Band gap energy  Optical property
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