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Nanoparticules Sn02 et SnO2 dopées à l'Al synthétisées par le procédé Sol-Gel

Nanoparticules Sn02 et SnO2 dopées à l'Al synthétisées par le procédé Sol-Gel


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About the Book

Les oxydes métalliques, tels que ZnO, CdO, SnO2 et Al2O3, suscitent l'intérêt des chercheurs depuis des décennies en raison de leurs propriétés uniques. Le SnO2 est un matériau actif dans la fabrication de dispositifs et ses propriétés peuvent être améliorées par l'ajout de dopants, tels que Tb3+, Eu3+, Mn2+ et Al3+. Cette étude s'est concentrée sur l'ajout d'aluminium, qui possède un rayon ionique similaire à celui de l'étain et qui est abondant sur Terre. Les chercheurs ont examiné les propriétés structurelles, optiques, thermiques et électriques de nanoparticules de SnO2 pures et dopées à l'aluminium, avec des concentrations de dopage allant de 0,2 % en poids à 4,0 % en poids. L'ajout de dopants a réduit la taille des cristallites et a affecté la structure des bandes, ce qui a eu un impact sur les propriétés électriques et diélectriques. Les propriétés électriques des nanoparticules de SnO2 dopées à l'aluminium pourraient être affinées en vue d'une utilisation dans l'industrie des condensateurs. Les chercheurs ont également découvert que le SnO2 non dopé présentait la conductivité la plus élevée, tandis que le dopage à l'Al réduisait la constante diélectrique et les valeurs de perte diélectrique dans une gamme de fréquences spécifique, ce qui le rendait adapté à certaines applications. Dans l'ensemble, cette étude fournit des informations précieuses sur les propriétés du SnO2 et sur la manière dont elles peuvent être adaptées à des applications spécifiques.


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Product Details
  • ISBN-13: 9786206064756
  • Publisher: KS Omniscriptum Publishing
  • Publisher Imprint: Editions Notre Savoir
  • Height: 229 mm
  • No of Pages: 88
  • Spine Width: 5 mm
  • Width: 152 mm
  • ISBN-10: 6206064751
  • Publisher Date: 06 Jun 2023
  • Binding: Paperback
  • Language: French
  • Returnable: N
  • Weight: 190 gr


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