Electrical conductivity characterization of Chitosan/Poly (vinyl alcohol) doped by bismuth oxide nanoparticles

• Published in: Composites communications Vol. 25; p. 100692
• Main Author: Tommalieh, M.J.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01-06-2021
• Subjects: Bismuth oxide nanoparticles; Chitosan/PVA matrix; Electrical conductivity; Chitosan/PVA matrix; Electrical conductivity; Bismuth oxide nanoparticles
• ISSN: 2452-2139; 2452-2139
• DOI: 10.1016/j.coco.2021.100692

Chitosan/Poly (Vinyl Alcohol) blend embedded by bismuth(III) oxide nanoparticles (Bi2O3 NPs) as a new composite substance to improve electrical properties. Chitosan/PVA/Bi2O3 nanocomposite films were prepared via laser ablation. XRD perform the appearing of patterns related to the planes of bismuth rhombohedral crystal structure NPs (code: 01-085-1330). The average crystal size of bismuth oxide nanoparticles has been found to be 47 nm. The bands of Bi–O stretching vibration was obtained at about 1517 cm-1 and 1423 cm-1 and confirm the existance of bismuth oxide nanoparticles. Due to increasing the conductive pathways between the filled (bismuth nanoparticles), higher values of ϭac relative to Chitosan/PVA rise and the volume of space charge rises due to increased conductivity.
•Bismuth (III) oxide nanoparticles scattered in Chitosan/PVA via laser ablation route.•XRD approved the formation and interaction of Bi2O3 NPs within Chitosan/PVA matrix.•Bi2O3 NPs enhance the electrical properties of Chitosan/PVA blend.•Chitosan/PVP/Bi2O3 NPs system suggested for use in electronic application.