Four Birds with One Stone: Enhancing Integrated Current Density beyond 25.5 mA cm^-2 in Perovskite Solar Cells through...

Area of Science:

• Materials Science
• Renewable Energy
• Photovoltaics

Background:

• Perovskite solar cells achieve high efficiencies but face stability challenges, particularly with FAPbI3-based materials.
• Stabilizing the narrow bandgap structure of FAPbI3 is crucial for widespread perovskite solar technology adoption.
• Current high efficiencies are largely limited to specialized research settings.

Purpose of the Study:

• To investigate strategies for enhancing the performance of FAPbI3-based perovskite solar cells.
• To systematically analyze the effects of substrate selection, annealing, additives, and passivation on device performance.
• To overcome the stability limitations of FAPbI3 perovskites for practical applications.

Main Methods:

• Systematic investigation of substrate selection.
• Optimization of annealing processes.
• Incorporation of specific additives.
• Application of passivation strategies.

Main Results:

• Achieved optimized device performance with an integrated current density of 25.59 mA cm-2.
• Reached a maximum power conversion efficiency of 21.86%.
• Significantly improved upon reference device values (23.11 mA cm-2 and 18.23% efficiency).

Conclusions:

• The study successfully enhanced FAPbI3-based perovskite solar cell performance through parameter optimization.
• The findings contribute to overcoming stability issues and improving efficiency in perovskite photovoltaics.
• This research supports the broader adoption and practical realization of high-performance perovskite solar technologies.