Recent Advances in Interface Engineering to Stabilize Formamidinium-Based Perovskite Solar Cells

Area of Science:

• Materials Science
• Renewable Energy
• Photovoltaics

Background:

• Formamidinium (FA)-based perovskite solar cells (PSCs) offer excellent performance and low cost.
• The primary limitation for FA-based PSCs is the instability of the black-phase formamidinium lead iodide (α-FAPbI₃).

Purpose of the Study:

• To review advancements in interface engineering for stabilizing FA-based PSCs.
• To emphasize phase stabilization and the advantages of interface engineering over other methods.
• To present strategies for improving PSC durability and power conversion efficiency.

Main Methods:

• Review of recent literature on interface engineering in FA-based PSCs.
• Analysis of phase stabilization techniques.
• Discussion of various interface engineering strategies.

Main Results:

• Interface engineering is a crucial and superior strategy for stabilizing FA-based PSCs.
• Specific interface engineering approaches can enhance both durability and power conversion efficiency.
• The review consolidates understanding of current stabilization methods.

Conclusions:

• Interface engineering is key to overcoming the instability of α-FAPbI₃ in FA-based PSCs.
• Further research into interface engineering promises high-efficiency and durable PSCs.
• The study provides insights for future PSC design and fabrication.