Optimization of MAPbI3 Film Using Response Surface Methodology for Enhancement in Photovoltaic Performance
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In the present study, optimization of process parameters for the deposition of methylamine lead iodide (CH3NH3PbI3 or MAPbI3) film is focus upon using parametric study and response surface methodology (RSM), respectively. The independent parameters to be optimized are PbI2:CH3NH3I ratio (1:2–1:4); spin speed (2000–3000 rpm); and annealing temperature (60–100 °C). The dependent parameter considered in this study is power conversion efficiency (PCE) of perovskite solar cell (PSC) fabricated using MAPbI3 layer. The value of the device efficiency at parametric optimum condition was 7.30%. Furthermore, to achieve specific optimum condition, RSM was applied to estimate the impact of deposition parameters on device efficiency. The predicted value of the PCE of PSC at optimum condition using RSM was 8.52%. The improvement of 16.7% in efficiency of the device can be clearly observed after the application of RSM.
KeywordsMAPbI3 perovskite Response surface methodology Spin coating Perovskite solar cell Power conversion efficiency
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