Enhanced physical characteristics of ZnO thin films through Sr and Mg co-doping

被引：0
|
作者：
Battal W. [1 ]
Rouchdi M. [1 ]
Ouafi M. [2 ]
Shaili H. [1 ]
Hassanain N. [1 ]
Mzerd A. [1 ]
机构：
[1] Centre De Recherche En Énergie, Équipe Des Semi-conducteurs Et Technologie Des Capteurs Pour L’environnement, Faculty of Sciences, Mohammed V University, Rabat
[2] LCS, Faculty of Sciences, Mohammed V University, Rabat
来源：
Materials Research Innovations | 2022年 / 26卷 / 04期
关键词：
band gap; hall effect; SMZO; SZO; thin films; ultrasonic spray; ZnO;
D O I：
10.1080/14328917.2021.1949894
中图分类号：
学科分类号：
摘要：
In this study, undoped ZnO, (Sr, Mg) co-doped ZnO (SMZO) thin films were synthetised on heated glass substrates at a temperature of 250°C by using ultrasonic spray technique. Doping strontium (Sr) and magnesium (Mg) into zinc oxide (ZnO) offers an important way to modify various properties. X-ray diffraction (XRD) confirmed that the films exhibited the hexagonal wurtzite structure of ZnO with a favored orientation along (002) plane. Scanning electron microscope (SEM) showed a strong change in the surface morphology while Energy dispersive X-ray spectrometer (EDX) and mapping confirmed the purity of the films. UV-Visible studies demonstrated that the optical transmittance was improved to an average value above 94% and that Mg-doping induces an increase of the band gap indicating high optical quality of the films. From the fabricated films, SMZO3 is the most appropriate for optoelectronic applications where a low resistivity and high figure of merit were obtained. © 2021 Informa UK Limited, trading as Taylor & Francis Group.
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页码：240 / 248
页数：8
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