Monographies

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Author: search.filters.author.Tala-Ighil, Razika

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    Livre sur les cellules solaires, SnO2 : F sur Silicium (N+/P) avec contact sérigraphié
    (Editions universitaires europeennes, 2011) Tala-Ighil, Razika
    Les Energies renouvelables et plus spécialement l'Energie solaire photovoltaïque, constituent une réelle alternative aux énergies fossiles qui s'amenuisent de jour en jour. Le présent ouvrage étudie l'optimisation d'une cellule solaire au silicium sur laquelle est déposée une fenêtre optique d'oxyde d'étain dopé au fluor par spray pyrolyse. Afin de réaliser des cellules solaires à moindre coût et à grande echelle, la métallisation par sérigraphie a été employée. D'où la nécessité d'étudier et de préserver les propriétés du SnO2:F avec le recuit de frittage à hautes températures. L'oxyde d'étain non dopé peut aussi être une couche anti-reflet. Ce livre est destiné aux étudiants et enseignants travaillant dans le domaine des Energies renouvelables ainsi qu'à toute personne voulant s'initier au photovoltaïque.
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    Effect of Thickness on Photocatalytic Activity of TiO2 Thin Films
    (Springer link, 2015) Bensouici, F.; Bououdina, Mohamed; Iratni, A.; Tala-Ighil, Razika
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    Nanomaterials in Solar Cells
    (2015) Tala-Ighil, Razika
    Reducing cost and improving conversion efficiency are the main tasks in order to make photovoltaic energy competitive and able to substitute traditional fossil energies. Nanotechnology seems to be the way by which photovoltaics can be developed, whether in inorganic or organic solar cells. Wide-bandgap nanostructured materials (nanomaterials) prepared from II–VI and III–V elements are attracting an increased attention for their potential applications in emerging energy. They can be prepared in different geometric shapes, including nanowires (NWs), nanobelts, nanosprings, nanocombs, and nanopagodas. Variations in the atom arrangements in order to minimize the electrostatic energy originated from the ionic charge on the polar surface are responsible for a wide range of nanostructures. This book chapter will focus on contribution of nanomaterials in solar cell technology advancement
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    Sol Gel Synthesis and Thermal Treatment Effect on Ce3+ Doped GdBO3 Nanoclusters Obtained in Silica Glass
    (2020) Ladjouzi, Samia; Tala-Ighil, Razika; Guerbous, Lakhdar; Bensouici, F.
    Silica glass samples containing GdBO3/Ce³⁺ nanoclusters were prepared by sol gel process. The effect of thermal treatment on the structural and optical properties was investigated. From DSC and XRD analysis, it was found that the GdBO3 hexagonal vaterite phase crystallizes inside the silica glass above 700 ℃. The average crystallites size ranges between 20 to 50 nm when the temperature increases from 800 ℃ to 1000 ℃. TEM-EDS analysis evidenced the presence of GdBO3:Ce³⁺ nanoclusters inside the silica matrix. Fourier transform infrared spectroscopy (FTIR) shows the presence of silica and borate linkages with significant changes in the intensity when the temperature increases from 500 ℃ to 1000 ℃. Finally, photoluminescence measurements showed that the sample heat treated at 1000 ℃ presents the maximum photoluminescence intensity assigned to the 5d Open image in new window 4f transition of Ce³⁺ ions