Mariem Louhichi¹, Zied Ben Hamed¹*, Chadlia El Manaa^1,4, Samir Romdhane^1,2, Shaimaa Ali³ and Habib Bouchriha¹

¹Laboratoire Matériaux Avancés et Phénomènes Quantiques, Faculté des Sciences de Tunis, Université El Manar, Tunis, Tunisia
²Faculté des Sciences de Bizerte, Université de Carthage, Tunisia
³Center for Photonic and Smart Materials (CPSM), Zewail City of Science and Technology, Sheikh Zayed District, Giza, Egypt
⁴Department of Physics, Jazan University, Jazan, Jazan Saudi Arabia

*Corresponding Author: Zied Ben Hamed, Laboratoire Matériaux Avancés et Phénomènes Quantiques, Faculté des Sciences de Tunis, Université El Manar, Tunis, Tunisia.

Received: February 28, 2022; Published: March 31, 2022

Abstract

Al-doped zinc oxide (ZnO: Al%) based on powders prepared via Polyol method is deposited on glass substrate by spin coating. Samples were annealed at 220°C, 295°C, and 370°C for 1 hour in ambient conditions. The effects of annealing and aluminum doping concentration (Al%) on the structural and optical properties of ZnO: Al% thin films are investigated by X-ray diffraction, AFM, and UV-Vis-IR spectroscopic techniques. The smallest crystallite size for ZnO: Al% is obtained with 0.6% doping owing to the formation of Al-O-Zn in the crystal lattice. The microstrain (ξ) decreases with the increasing T_A which confirms the improvement of the crystalline quality of thin films. The AFM data are used to illustrate the surface morphology variation of thin films at different T_A as well as Al% content. We also showed that the optical constants are considerably influenced by the Al% and T_A. Photoluminescence spectra of ZnO: Al% powders analyzed based on Franck-Condon progression.

Keywords: Al-doped ZnO Thin Films; Polyol Method; X-ray Diffraction; Transmission; AFM

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Citation

Citation: Zied Ben Hamed., et al. “Investigation of Al-doped ZnO Thin Films Based on Powders Prepared Via Chemical Precipitation Method in Polyols". Acta Scientific Applied Physics 2.4 (2022): 09-27.

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Copyright: © 2022 Zied Ben Hamed., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.