Structural, Optical and Thermal Properties of PVA / KI Based Solid Polymer Electrolyte
M.I. Mohammed; Ismail, Ahmed; Salem G.F;
Abstract
Solid polymer electrolyte films of polyvinyl alcohol (PVA) doped
with different amounts of potassium iodide (KI) were prepared using
solution cast technique. Formation of complex structure between PVA
polymer and KI salt was confirmed by Fourier transform infrared (FTIR)
spectroscopy. The changes of crystallization nature and transition
temperatures of the solid polymer electrolyte films were investigated by
X-ray diffraction (XRD) and differential scanning calorimetry (DSC). The
optical absorption spectra in the wavelength range from 200 to 800 nm
were measured and analyzed in terms of absorption formula for noncrystalline materials. The optical band gap energy, refractive index, and
dielectric constants were investigated and showed a clear dependence on
the KI content. The optical band gap (both direct and indirect) was
determined and explained on the bases of incorporation of charge
transfer complexes by the dopants. The calculated values of refractive
index and the dielectric constants of the solid polymer electrolyte films
increased with increasing KI content
with different amounts of potassium iodide (KI) were prepared using
solution cast technique. Formation of complex structure between PVA
polymer and KI salt was confirmed by Fourier transform infrared (FTIR)
spectroscopy. The changes of crystallization nature and transition
temperatures of the solid polymer electrolyte films were investigated by
X-ray diffraction (XRD) and differential scanning calorimetry (DSC). The
optical absorption spectra in the wavelength range from 200 to 800 nm
were measured and analyzed in terms of absorption formula for noncrystalline materials. The optical band gap energy, refractive index, and
dielectric constants were investigated and showed a clear dependence on
the KI content. The optical band gap (both direct and indirect) was
determined and explained on the bases of incorporation of charge
transfer complexes by the dopants. The calculated values of refractive
index and the dielectric constants of the solid polymer electrolyte films
increased with increasing KI content
Other data
Title | Structural, Optical and Thermal Properties of PVA / KI Based Solid Polymer Electrolyte | Authors | M.I. Mohammed; Ismail, Ahmed ; Salem G.F | Issue Date | 2017 | Publisher | 2017 | Journal | Egypt. J. Solids | Volume | 40 | Issue | 1 | Start page | 79 | End page | 94 | ISSN | 2735-5640 | DOI | 10.21608/ejs.2017.148265 |
Attached Files
File | Description | Size | Format | Existing users please Login |
---|---|---|---|---|
EJS_Volume 40_Issue 1_Pages 79-94.pdf | 525.62 kB | Adobe PDF | Request a copy |
Similar Items from Core Recommender Database
Items in Ain Shams Scholar are protected by copyright, with all rights reserved, unless otherwise indicated.