Physics

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Physics

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Start date: 2020Subject: search.filters.subject.Photovoltaic

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    Doped Metal Oxide Thin Films for Enhanced Solar Energy Applications
    (Springer, 2021) Eze, C. N.; Obodoa, R. M; Ezugwu, S. C; Ezemaa, F .I.
    Solar energy is energy from the sun and its provision is in abundance without payments. It is renewable and more promising than its counterpart energy source called fossil fuels. Fossil fuels have energy crises ranging from inadequacy to depletion, pollution etc. This solar energy could be technically collected, utilized but there could still be an improved method of collecting the solar energy for more advanced utilization called solar energy. Achieving this by the process of doping metal oxide thin films with impurities like carbon derivatives, organic synthetic dyes etc. will harnesses dopant characteristics for optimal performance. The doped materials help in controlling the composition and structure of dopants, which enhance their performance. The metal oxide semiconductor thin films are synthesized via varieties of processes on working active layer materials with stable interfaces for solar energy conversion and versatile applications in several areas valuable for humankind.
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    SCAPS-1D ANALYSIS OF NON-TOXIC LEAD-FREE MASnI 3 PEROVSKITE-BASED SOLAR CELL USING INORGANIC CHARGE TRANSPORT LAYERS
    (EAST EUROPEAN JOURNAL OF PHYSICS. 3. 447-455 (2024), 2024-08-19) YUSUF Abubakar Sadiq; Matthew I. Amanyi; Eghwubare Akpoguma; Stephen O. Eghaghe; James Eneye; Raymond M. Agaku; Lilian C. Echebiri; Emmanuel U. Echebiri; Emmanuel O. Ameh; Chinyere I. Eririogu; Nicholas N. Tasie; Anthony C. Ozurumba; Eli Danladi
    Perovskite solar cells (PSCs) have gained a lot of attention due to their high efficiency and low cost. In this research paper, a methylammonium tin iodide (CH3NH3SnI 3) based solar cell was simulated using a one-dimensional solar cell capacitance simulation (SCAPS-1D) tool. The SCAPS-1D tool is based on Poisson and the semiconductor equations. After thorough investigation, the initial device presents the following parameters; power conversion efficiency (PCE)=15.315%, fill factor (FF)=64.580%, current density (Jsc)=29.152 mA/cm 2, and open circuit voltage (Voc)=0.813 V. The effect of absorber and ETL thicknesses were explored systematically. The performance of the simulated device was significantly influenced by the thickness of the absorber and ETL. The optimized absorber thickness was 0.5 μm and the ETL thickness was 0.02 μm, giving rise to an optimized PCE of 15.411%, FF of 63.525%, Jsc of 29.812 mA/cm2, and Voc of 0.814 V. Additionally, the effect of temperature on the optimized device was evaluated and found that it affects the performance of the device. This model shows the prospect of CH3NH3SnI 3 as a perovskite material to produce toxic-free environment-friendly solar cells with high efficiency.