Mariem Louhichi1, Zied Ben Hamed1*, Chadlia El Manaa1,4, Samir Romdhane1,2, 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
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 TA 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 TA as well as Al% content. We also showed that the optical constants are considerably influenced by the Al% and TA. 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
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.
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.