Enhanced dielectric characteristics of Cr2O3 nanoparticles doped PVA/PEG for electrical applications / Mohammed H. Abbas in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 33, N° 4 (08/2023)  

[article]  inREVUE DES COMPOSITES ET DES MATERIAUX AVANCES > Vol. 33, N° 4 (08/2023) . - p. 261-266 Titre : Enhanced dielectric characteristics of Cr2O3 nanoparticles doped PVA/PEG for electrical applications Type de document : texte imprimé Auteurs : Mohammed H. Abbas, Auteur ; Aseel Hadi, Auteur ; Bahaa H. Rabee, Auteur ; Majeed Ali Habeeb, Auteur Année de publication : 2023 Article en page(s) : p. 261-266 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Composites -- Propriétés électriques Diélectriques Nanoparticules Oxydes de chrome Polyacétate de vinyle Polyéthylène glycol Index. décimale : 668.9 Polymères Résumé : This study examines the dielectric properties of polyvinyl alcohol (PVA)/polyethylene glycol (PEG) doped with chromium oxide (Cr2O3) nanoparticles, with the aim of leveraging these properties in electronic and electric nanodevices. The effect of Cr2O3 nanoparticle concentration on the dielectric constant, dielectric loss, and AC electrical conductivity of the composites was systematically investigated. The results demonstrate that both the dielectric constant and dielectric loss decrease with increasing frequency, but increase with the concentration of Cr2O3 nanoparticles. Conversely, AC electrical conductivity was found to increase with both frequency and Cr2O3 nanoparticle concentration. The enhanced dielectric properties of the PVA/PEG/Cr2O3 nanocomposites make them suitable for various applications in the field of electronics and energy storage. The study provides new insights into the design of materials for electrical and electronics applications. DOI : https://doi.org/10.18280/rcma.330407 En ligne : https://www.iieta.org/download/file/fid/106430 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40433 [article]

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Enhancement of optical properties in in2O3-doped PVA-PEG nanostructured films for optoelectronic applications / Dhay Ali Sabur in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 33, N° 6 (12/2023)  

[article]  inREVUE DES COMPOSITES ET DES MATERIAUX AVANCES > Vol. 33, N° 6 (12/2023) Titre : Enhancement of optical properties in in2O3-doped PVA-PEG nanostructured films for optoelectronic applications Type de document : texte imprimé Auteurs : Dhay Ali Sabur, Auteur ; Ahmed Hashim, Auteur ; Aseel Hadi, Auteur ; Majeed Ali Habeeb, Auteur ; Bahaa H. Rabee, Auteur ; Musaab Khudhur Mohammed, Auteur Année de publication : 2023 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Alcool polyvinylique Couches minces -- Propriétés optiques Matériaux -- Propriétés optoélectroniques Nanostructures Oxyde d'indium L'oxyde d'indium(III) (In2O3) est un composé chimique, un oxyde amphotère d'indium. (Wikipedia) Polyéthylène glycol Index. décimale : 668.4 Plastiques, vinyles Résumé : In this investigation, nanostructured films comprising polyvinyl alcohol (PVA)/polyethylene glycol (PEG) blended with indium oxide (In2O3) nanoparticles were fabricated using a casting technique. The study focused on examining the impact of varying the ratios of PVA/PEG blend and In2O3 nanoparticle content on the optical properties of these nanostructures. Optical assessments were conducted across a spectrum ranging from 220 nm to 820 nm. It was observed that an increase in In2O3 nanoparticle concentration resulted in elevated absorbance levels in the PVA/PEG matrix, particularly within the ultraviolet spectrum, while simultaneously causing a decrease in transmittance. This effect was attributed to the interaction between the polymer matrix and the In2O3 nanoparticles, leading to altered electronic and photonic interactions within the material. A notable reduction in the energy band gap was also recorded with increasing In2O3 content, suggesting enhanced electron mobility and photon interaction within the nanostructures. These findings underscore the potential of In2O3-doped PVA/PEG films in optoelectronic applications, particularly in fields requiring controlled optical properties such as photonics and advanced optical systems. The improved optical parameters, specifically in terms of absorbance and band gap manipulation, highlight the versatility of these nanostructures in various optoelectronic applications. DOI : https://doi.org/10.18280/rcma.330606 En ligne : https://www.iieta.org/download/file/fid/115612 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40767 [article]

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