Optical Analysis and UV-Blocking Filter of Cadmium Iodide-Doped Polyvinyl Alcohol Polymeric Composite Films: Synthesis and Dielectric Properties

Polymer electrolyte films containing polyvinyl alcohol (PVA) with various CdI 2 inorganic salt contents are prepared using an ultrasonic wave and a casting method for studying the effect of cadmium iodide (CdI 2 ) additions on the microstructure, optic and dielectric characteristics of the PVA film....

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Bibliographic Details
Published in:Journal of inorganic and organometallic polymers and materials 2020-10, Vol.30 (10), p.3940-3952
Main Authors: Bouzidi, A., Jilani, W., Yahia, I. S., Zahran, H. Y., Assiri, M. A.
Format: Article
Language:English
Subjects:
Cadmium
Chemical synthesis
Chemistry
Chemistry and Materials Science
Crystallites
Dielectric properties
Electrical resistivity
Electrolytes
Electromagnetic absorption
Energy gap
Inorganic Chemistry
Inorganic salts
Ion currents
Ions
Microstructure
Optical properties
Organic Chemistry
Parameters
Polymer films
Polymer Sciences
Polymers
Polyvinyl alcohol
Protection systems
Shielding
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Summary:Polymer electrolyte films containing polyvinyl alcohol (PVA) with various CdI 2 inorganic salt contents are prepared using an ultrasonic wave and a casting method for studying the effect of cadmium iodide (CdI 2 ) additions on the microstructure, optic and dielectric characteristics of the PVA film. Incorporating CdI 2 inorganic salt affects the microstructural parameters of the proposed films. UV–Vis–NIR optical spectroscopy explores the influence of the inorganic CdI 2 salt content on the optical characteristics. For 3.7 wt% CdI 2 inorganic salt sample, each of the materials is a possible candidate for UV-shielding applications, the prepared polymeric electrolyte films begin a blocking light between 190 and 276 nm of UV–Vis light. The gap energy in the visible region attributes to a reduction in the size of the crystallite, with increasing CdI 2 concentrations. The band gaps enhance the behavior of light absorption and the materials examined were suited for optical UV protection systems. The ionic conductivity of the polymer electrolyte films is studied as a function of the added CdI 2 inorganic salt. The AC impedance in PVA polymeric electrolyte film behaviors also depends on the incorporation of CdI 2 inorganic salt which improves their dielectric parameters. CdI 2 /PVA composite films showed a new trend in the electrical and optical behavior for many applications especially UVC light blocking. Graphic Abstract
ISSN:1574-1443
1574-1451
DOI:10.1007/s10904-020-01534-5