Nikhil Shrivastav, Savita Kashyap, R. Pandey, Jaya Madan
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Design and Simulation of 7% Efficient Lead-Free Perovskite Single Junction Solar Cell
Due to the low cost, low-temperature coefficient, direct bandgap, long-term stability, and high absorption coefficient, lead-free perovskite materials are the most promising materials for solar cell. Thus, in this work, a single-junction solar cell based on cesium tin-germanium triiodide solid solution perovskite (CsSn0.5Ge0.5I3) material (1.5 eV) has been used to design solar cell. To assist the light generated charge carrier flow PCBM: C60 and Spiro-OMeTAD are utilized as ETL and HTL respectively. Using the SCAPS-1D tool, the cell is tuned for maximum conversion efficiency (7%) by collectively adjusting the thickness and donor density of the perovskite (CsSn0.5Ge0.5I3) layer.
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