Internal Encapsulation for Perovskite Solar Cells

Area of Science:

• Materials Science
• Renewable Energy
• Photovoltaics

Background:

• Perovskite solar cells (PSCs) offer high efficiency and low-cost fabrication.
• Their commercialization is limited by inherent instability issues.
• External encapsulation has limitations in protecting PSCs.

Purpose of the Study:

• To systematically review internal encapsulation strategies for perovskite solar cells.
• To elucidate the mechanisms and material design principles of internal encapsulation.
• To discuss the application effects, challenges, and future prospects of this technology.

Main Methods:

• Review of internal encapsulation techniques including macrocyclic chelators, crosslinking molecules, and functional polymers.
• Analysis of material design and cross-device layer integration.
• Evaluation of application effects on perovskite stability and performance.

Main Results:

• Internal encapsulation effectively enhances PSC stability by addressing defect passivation and ion migration.
• Specific materials and design principles are identified for improved device longevity.
• Internal encapsulation complements external methods for superior protection.

Conclusions:

• Internal encapsulation is a key strategy for overcoming perovskite solar cell instability.
• Further research into material design and application is crucial for commercial viability.
• This approach holds significant promise for next-generation photovoltaic technologies.