Synthesis and characterization of aluminum doped zinc oxide nanoparticles via a novel and low cost aqueous chemical process

• Published in: Materials letters Vol. 353; p. 135230
• Main Authors: Moussa Tankari, A., Medjnoun, K., Nouiri, M., Briot, O., Juillaguet, S., Peyre, H., Belaqziz, M., Djessas, K.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15.12.2023; Elsevier
• Subjects: Aluminum doped ZnO; Condensed Matter; Crystallographic structure; Nanoparticles; Photoluminescence; Physics; Nanoparticles; Crystallographic structure; Photoluminescence; Aluminum doped ZnO
• ISSN: 0167-577X; 1873-4979
• DOI: 10.1016/j.matlet.2023.135230

[Display omitted] •Achieving of Aluminum doped Zinc Oxide Nanoparticles (AZO NPs) by a green and low cost aqueous chemical process.•Easy control of aluminum doping in AZO NPs has been demonstrated.•High crystal quality of AZO NPs has been confirmed by structural analyzes.•Absence of deep defects exhibited the purity of AZO NPs by Photoluminescence analysis.•Aqueous chemical process AZO NPs is easily transferred to an industrial scale. Pure and Aluminum doped Zinc Oxide Nanoparticles (AZO NPs) with various doping concentrations were synthesized using an original aqueous chemical process under atmospheric pressure and moderate temperature, using only deionized water as a solvent with a filtration step followed by heat treatment. The X-Ray Diffraction (XRD), Raman and Field Emission Scanning Electron Microscopy- Energy-Dispersive X-ray Spectroscopy (FESEM-EDS) analysis of nanoparticles reveals a hexagonal wurtzite structure, with a size around 60 nm and the presence of aluminum in our samples. Optical investigations demonstrate that the material is of high quality, with few deep structural defects, since Photoluminescence (PL) is largely dominated by excitonic emission at low temperatures.