Journal of New Technology and Materials
Volume 9, Numéro 1, Pages 22-27
2019-07-04

Structural Characterization Of Sol Gel-synthesized Zno Nano Powders With Different Sources Of Al Doping



Authors : Mahcene Fatima . Chari Abdelhamid . Hioual Ouided . Belabed Naoual . Kasouit Samir .

Abstract

Nanorystalline zinc oxide powders with atomic Aluminum to Zinc ratio varying between 0.1% and 20% were synthetized using a simple solgel method and annealed at different temperatures. The samples were characterized by X ray diffraction, Raman spectroscopy and SEM imaging. It is found that Aluminum doping induces a monotonous decrease in ZnO grain size for annealing temperatures of 700°C and beyond. No such effect was observed below 500°C. furthermore, peaks associated with the ZnAl2O4 spinel phase were observed at high doping concentrations on both the X ray and infrared spectral.

Keywords

ZnO ; Al203 ; DRX ; Infra Red ; Sol-gel ; SEM ; ZnAl2O4 ; nano composite ZnO/PMMA

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