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Updated: Jan 25, 2026
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Flash Infrared Annealing for Perovskite Solar Cell Processing
Published on: February 3, 2021
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Defect and Contact Passivation for Perovskite Solar Cells
Erkan Aydin1, Michele De Bastiani1, Stefaan De Wolf1
1King Abdullah University of Science and Technology (KAUST), KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), Thuwal, 23955-6900, Kingdom of Saudi Arabia.
Advanced Materials (Deerfield Beach, Fla.)
|May 8, 2019
Summary
Metal-halide perovskites offer affordable, high-efficiency solar cells. Passivating contacts reduce defects and voltage loss, paving the way for market-ready perovskite solar cells (PSCs).
Area of Science:
- Materials Science
- Photovoltaics
- Solid-State Physics
Background:
- Metal-halide perovskites are promising for low-cost, high-performance solar cells.
- Perovskite solar cells (PSCs) have achieved over 24% power conversion efficiency (PCE).
- Defects and grain boundaries in perovskites cause nonradiative recombination, limiting voltage and efficiency.
Purpose of the Study:
- Investigate voltage-limiting mechanisms in PSCs.
- Discuss strategies to mitigate these limitations.
- Highlight the role of contact passivation in improving PSC performance and stability.
Main Methods:
- Analysis of defect origins and their impact on recombination.
- Review of contact passivation techniques.
- Evaluation of strategies for reducing hysteresis and enhancing device stability.
Main Results:
- Nonradiative recombination due to defects is a key factor in open-circuit voltage deficit.
- Contact passivation effectively reduces recombination and hysteresis.
- Passivation strategies enhance the operational stability of PSCs.
Conclusions:
- Addressing defects and optimizing contact passivation are crucial for exceeding the theoretical efficiency limit of PSCs.
- Passivating contacts are vital for improving PSC stability and accelerating market readiness.
- Further research in contact design is needed to unlock the full potential of high-efficiency PSCs.
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