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Strain Control to Stabilize Perovskite Solar Cells.
Hui Zhang1,2, Nam-Gyu Park2,3
1Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Nanjing Tech University, Nanjing 211816, Jiangsu, China.
Angewandte Chemie (International Ed. in English)
|September 19, 2022
Summary
Controlling strain in perovskite solar cells (PSCs) is crucial for improving their stability and performance. Understanding and managing strain effects are key to developing reliable and efficient PSCs for commercial use.
Area of Science:
- Materials Science
- Renewable Energy
- Solid-State Physics
Background:
- Perovskite solar cells (PSCs) show high efficiency and low cost, but suffer from instability.
- Undesirable strain in PSCs impacts device stability by promoting phase transitions, decomposition, and mechanical fragility.
Purpose of the Study:
- To elucidate the evolution of strain in perovskite thin films.
- To analyze the effect of strain on PSC device performance.
- To systematically review state-of-the-art strain modulation strategies for stable PSCs.
Main Methods:
- Review of existing literature on strain in perovskite thin films.
- Analysis of strain's impact on perovskite solar cell performance metrics.
- Systematic categorization of strain modulation techniques.
Main Results:
- Strain significantly affects perovskite thin film properties and device stability.
- Various strategies exist for controlling strain in PSCs.
- Strain engineering is vital for enhancing PSC durability.
Conclusions:
- A comprehensive understanding of strain phenomena is essential for designing stable PSCs.
- Effective strain control is a critical pathway to achieving desired perovskite material properties.
- Addressing strain is indispensable for the practical deployment of perovskite solar technology.
