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Titre: | Dependence of structural and optical properties of ZnO thin films grown by Sol–Gel Spin-Coating technique on solution molarity |
Auteur(s): | Chala, Slimane Bdirina, Madani Elba, Mourad Naoui, Yassine Benbouzid, Yazid Taouririt, Taki Eddine Labed, Mohamed Boumaraf, Rami Bouhdjar, Abdel Fodhil Sengouga, Nouredine Yakuphanoğlu, Fahrettin Rahmane, Saâd |
Mots-clés: | Sol–gel ZnO Molarity Thin film Optical properties |
Date de publication: | 2022 |
Editeur: | Springer |
Collection/Numéro: | Transactions on Electrical and Electronic Materials/ (2022);pp. 1-8 |
Résumé: | Zinc oxide (ZnO) thin films were deposited on glass substrates by using sol–gel spin coating technique. Zinc acetate dihy-
drate and 2-methoxyethanol were used as precursor with different molar concentrations, 0.2 M, 0.3 M and 0.6 M. The effect
of precursor concentration on the structural and optical properties, transmission (T), reflection (R), optical bandgap (Eg),
Urbach energy (E U ), refractive index (n), extinction coefficient (k), single-oscillator energy (E 0 ), dispersion energy (E d ),
moments M −1 and M −3 , dielectric constant (ε) and optical conductivity (σ), of the ZnO thin films was studied and investi-
gated. Although, the transmittance, slightly, decreased and the reflectance increased, as the molar concentration increased,
the measurements showed that all samples have high transparency and low reflectivity in the visible range which make them
suitable for solar cells applications. It is also found that, as the molarity increased, the ZnO thin films exhibited lower Eg
and E U and higher Ed, M −1 and M −3 |
URI/URL: | https://link.springer.com/article/10.1007/s42341-022-00386-9 https://doi.org/10.1007/s42341-022-00386-9 http://dlibrary.univ-boumerdes.dz:8080/handle/123456789/7648 |
ISSN: | 12297607 |
Collection(s) : | Publications Internationales
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