Abstract
AbstractPerovskite‐based tandem solar cells (SCs) show significant potential for improving efficiency. In this study, three configurations were designed and optimized: a top cell (ITO/ZnSe/CH3NH3GeI3/CuSCN/Ni), a bottom cell (ITO/ZnSe/CH3NH3SnI3/CuI/Ni), and a tandem cell combining both. Using SCAPS‐1D, the study evaluated how the absorber layer thickness, doping concentration, and defect density affected photovoltaic (PV) performance. It also explored the influence of doping in the back surface field (BSF), interface defect densities, temperature, and back contact work function. The top cell achieved a power conversion efficiency (PCE) of 28.47%, with an open‐circuit voltage (VOC) of 1.21 V, a short‐circuit current density (JSC) of 27.17 mA/cm2, and a fill factor (FF) of 86.24%. The bottom cell reached a PCE of 18.46%, with a VOC of 0.83 V, a JSC of 27.17 mA/cm2, and an FF of 81.839%. The optimized tandem structure demonstrated a notably higher efficiency of 46.89%, with a JSC of 27.17 mA/cm2, a VOC of 2.04 V, and an FF of 84.31%. These results suggest the proposed CH3NH3GeI3/CH3NH3SnI3 tandem design could pave the way for efficient, eco‐friendly, and cost‐effective PV cells in a near future.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.