Publications Scientifiques

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Author: search.filters.author.Bensouici, Fayçal

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    Effect of TiN thin films deposited by oblique angle sputter deposition on sol-gel coated TiO2 layers for photocatalytic applications
    (Elsevier, 2024) Naas, Lazhari-Ayoub; Bouaouina, Boudjemaa; Bensouici, Fayçal; Mokeddem, Kamel; Abaidia, Seddik-El-Hak
    TiO2 monolayer and TiN/TiO2 bilayer coatings were deposited on soda-lime glass prepared by mixing two techniques, TiO2 was deposited by sol-gel dip-coating and TiN film was deposited by oblique angle deposition using reactive magnetron sputtering at α=45° Structural analysis showed typical peaks of TiO2 anatase phase and cubic (Na-Cl type) structure of TiN. Roughness value of 3 nm was obtained for the TiN/TiO2 bilayer film with a rise and elongated grains size. It was found that the optical band gap energy decreases after coupling the TiN sub-layer which is explained by the incorporation of N atoms into TiO2 structure. At constant UV irradiation time, the photo-degradation of methylene blue rate increased for TiN/TiO2 film by 4 % compared to TiO2 film
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    Study of Temperature and Concentration Effects for CZTS Layers using Spray Pyrolysis
    (IEEE, 2017) Haouanoh, Djedjiga; TalaIghil, Razika Zaïr; Toubane, Mahdia; Bensouici, Fayçal; Zair, Razika
    In this study, Cu 2 ZnSnS 4 (CZTS) layers were successfully deposited onto glass and silicon substrates by spray pyrolysis technique. The surface morphology, chemical, crystal phase structure and optical properties of (CZTS) thin films were characterized using a scanning electron microscopy (SEM), atomic force microscopy (AFM), X-ray diffractometer (XRD) and UV-visible spectrophotometer. Substrate temperatures and concentrations of precursor effects parameters were investigated. X-ray diffraction showed the formation of kesterite phase. SEM images revealed uniform, smooth, porous, and compact and densely packed morphology. A wide variation in the value of the band gap is observed when we have changed both parameters temperature and concentration.
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    Structural, optical, properties of czts layers deposited by spray pyrolysis technique
    (2015) Tala-Ighil, Razika; Haouanoh, Djedjiga; Toubane, Mahdia; Bensouici, Fayçal; Samantilleke, Anura Priyajith; Slimani, Amel