M. BOUZNIT Yazid

Prof

Directory of teachers

Department

Departement of Chemistry

Research Interests

Specialized in Departement of Chemistry. Focused on academic and scientific development.

Contact Info

University of M'Sila, Algeria

Email : yazid.bouznit@univ-msila.dz

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Recent Publications

2025-08-12

Novel multi-spray approach for preparing Cu₂ZnSnS₄ films for efficient solar photoelectrochemical water splitting

In this paper, a novel multi-spray approach was adopted and optimized to prepare high quality Cu2ZnSnS4 films. To achieve the Cu2ZnSnS4 phase under optimized conditions using this technique, a series of samples with different Cu:Zn:Sn:S atomic ratios were prepared and investigated using various characterization methods. X-ray diffraction (XRD) analysis indicated that the crystalline quality was strongly dependent on the Cu:Zn:Sn:S atomic ratios. In all cases, a pure Cu2ZnSnS4 kesterite phase structure with (112) orientation was obtained. All prepared films exhibited low transmittance (approximately 30 %) in the visible region. Electrochemical photocurrent tests showed that the films presented a cathodic photocurrent, thus confirming the p-type conductivity of the prepared films. Films deposited using a solution with the stoichiometric composition (Cu2ZnSnS4) exhibited excellent structural, morphological and electrochemical properties, with photocurrent density reaching up to 6 mA/cm2.
Citation

M. BOUZNIT Yazid, (2025-08-12), "Novel multi-spray approach for preparing Cu₂ZnSnS₄ films for efficient solar photoelectrochemical water splitting", [international] Chemical Physics , ELSEVIER

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2023-12-21

Dual effect to improve the electrical properties of fcSZO/fc films grown by nitrogen pneumatic spray pyrolysis

The principal aim of this study is to reduce considerably, via Sn doping, the resistivity of ZnO thin films prepared by simple, flexible, and cost-effective nitrogen pneumatic spray pyrolysis (NPSP) method on glass substrates at a temperature of 400°C. Different Sn content was tested (Sn/Zn = 0, 1, 3, 5 wt%) in an attempt to reduce the concentration of excessive oxygen atoms and create more free electrons. The microstructural, optical, morphological, and electrical properties of the films have been studied. The x-ray diffraction analysis demonstrated that tin-doped SZO films exhibited polycrystalline nature with a preferential orientation along (002) plane with the appearance of a new orientation (101) with the increase of Sn concentration leading then to bidirectional growth. The deposited SZO films showed an average optical transmittance of about 80% in the UV–visible region (200–800 nm) with optical band gap values at around 3.27 eV. Photoluminescence emissions of SZO samples presented three main peaks: near band edge emission, violet emission, and the blue–green emission. The surface morphology of the films obtained by scanning electron microscope (SEM) exhibited the change in morphology with increasing the Sn content. A minimum electrical resistivity value of about 17·10−3 Ω·cm was obtained for 3% SZO films. SZO films prepared by the NPSP method can be used as transparent window layer and electrodes in solar cells.
Citation

M. BOUZNIT Yazid, fethichouikh@yahoo.fr, , (2023-12-21), "Dual effect to improve the electrical properties of fcSZO/fc films grown by nitrogen pneumatic spray pyrolysis", [international] Microscopy Research and Technique , John Wiley & Sons, Inc.

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2019

EFFECT OF THE DEPOSITION TEMPERATURE OF CUO-CU2O SYSTEM BY CHEMICAL SPRAY

In the present work, CuO-Cu2O thin films were deposited on cleaned glass substrates with various temperature namely (200°,260°,320°,380°,440°,500°) by spray technique. To investigate the influence of the deposition temperature on the structural, optical and electrical properties of CuOCu2O thin films, the resulting films were characterized by means of X-ray diffraction, UV-visible spectrophotometer, photocurrent. X-ray diffraction analysis indicated that copper oxide (CuO) thin films prepared has polycrystalline structure and when increase the temperature of thin film over than 440° C ,the thin film turns from phase Cu2O to CuO phase. The optical studies showed that the gradual decrease in the transmittance of the layers with the increase of the deposition temperature. In conclusion, we have been able to develop a thin layers of copper oxide CuO-Cu2O system) by a simple chemical method and the properties of the considered interesting and motivating.
Citation

M. BOUZNIT Yazid, Amroune.Ibtissam, Bendjedi.Bouchra, Dilmi.Toufiq, , (2019), "EFFECT OF THE DEPOSITION TEMPERATURE OF CUO-CU2O SYSTEM BY CHEMICAL SPRAY", [international] 4th INTERNATIONAL SYMPOSIUM ON MATERIALS AND SUSTAINABLE DEVELOPMENT (ISMSD2019) , Boumerdes - Algeria

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