Abstract
Solid polymer electrolyte films based on polymer blends of poly(vinyl alcohol) (PVA) and poly(ethylene oxide) (PEO), with different concentration of copper (II) chloride (CuCl2) were prepared using casting technique. Optical studies were performed using Fourier transform infrared (FT-IR) and Ultraviolet-visible (UV-Vis) spectroscopy. The optical properties of these films were varied by varying CuCl2 concentration. The results show the absorption edge for electrolyte samples shifts toward a lower energy region by increasing the salt concentration, leading to the band gap reduction. The band gap energy data showed that the incorporation of CuCl2 into the polymeric system causes charge transfer complexes in the blend polymer, which lead to increase in the electrical conductivity, by providing additional charges in the lattice. The PVA/PEO/CuCl2 solid polymer electrolyte films exhibit good UV shielding properties in the wavelength range from 190 to 400 nm.
Highlights
Optical spectroscopy is one of the most powerful techniques to determine the band structure of materials
The changes in the electronic band structure of the crystal can be investigated via optical spectroscopy [4,5,6,7]
The main purpose of this work was to achieve a deeper insight into the fundamental physical properties of Polyvinyl alcohol (PVA)/Polyethylene oxide (PEO) blend films doped with different concentration of CuCl2 salt
Summary
Optical spectroscopy is one of the most powerful techniques to determine the band structure of materials. There has been considerable interest in the optical spectra because of both the interesting physics involved and potential applications in materials [1,2,3]. Polyvinyl alcohol (PVA) polymers have attracted much attention in view of their variety applications in optical devices [9]. Some studies reveal that the physical properties of the PVA can be controlled by doping for different applications [11,12,13]. Polyethylene oxide (PEO) is the most widely utilized interesting material as a result of it is high chemical and thermal stability [14]. PEO is a semicrystalline polymer, possessing both crystalline and amorphous phases at room temperature
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
