Photocorrosion at Irradiated Perovskite/Electrolyte Interfaces

Area of Science:

• Materials Science
• Electrochemistry
• Photocatalysis

Background:

• Metal-halide perovskites have revolutionized optoelectronics.
• Their application in photocatalysis is limited by instability and photocorrosion.
• Understanding photocorrosion mechanisms is crucial for stable device development.

Purpose of the Study:

• To discuss thermodynamic and kinetic aspects of perovskite photocorrosion.
• To reveal underlying mechanisms using advanced electrochemical techniques.
• To explore strategies for mitigating photocorrosion.

Main Methods:

• In situ and operando electrochemical techniques.
• Analysis of thermodynamic and kinetic factors in photocorrosion.
• Review of existing and emerging mitigation strategies.

Main Results:

• Photocorrosion mechanisms at perovskite interfaces were elucidated.
• The role of electrolytes in photocorrosion was investigated.
• Effective strategies for enhancing stability were identified.

Conclusions:

• A deeper understanding of photocorrosion is essential for advancing perovskite-based photocatalysis.
• Combined electrochemical methods provide critical mechanistic insights.
• Surface protection, materials, and electrolyte engineering offer promising avenues for stabilization.