Thickness Variation Study of Perovskite Layer Over the Range 100-1300 nm and Its Influence on the Performance of Perovskite Solar Cells Using SCAPS Software
Keywords:Perovskite, Solar cells, Absorber thickness, Quantum efficiency, SCAPS software
The thickness of the light-absorbing layer plays a critical role in determining the metrics of perovskite solar cells (PSCs). Herein, the simulation of Tin-based perovskite solar cells using one-dimensional Solar Cell Capacitance Simulator (SCAPS-1D) software was reported systematically. The effect of absorber thickness on the performance metrics was investigated. The variation of the thickness of the absorber layer was varied from 100 nm to 1300 nm. The results of the initial device showed performance in Short Circuit Current Density (JSC) of 20.991 mAcm−2, Open Circuit Voltage (VOC) of 0.741 V, Fill Factor (FF) of 54.048 %, and Power Conversion Efficiency (PCE) of 8.256 %. The Quantum Efficiency (QE) of the device shows strong activity within the visible region of the electromagnetic spectrum. Controlling the perovskite layer thickness, results to best PCE of 8.382 %, Jsc of 21.166 mAcm-2, Voc of 0.741 V and FF of 53.439 % at thickness of 0.5 μm. When the optimized result is compared with the initial device, an improvement of ~1.02 times in PCE, ~ 1.01 in Jsc was obtained over the initial device. The results obtained show that, for better PSCs performance, careful selection of the thickness of the absorber layer is important for good photon absorption.
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