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Published on: February 3, 2021
Rationalization of passivation strategies toward high-performance perovskite solar cells
Zhihao Zhang1,2, Lu Qiao3, Ke Meng4
1CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China. peng.gao@fjirsm.ac.cn.
This review classifies passivation strategies for perovskite solar cells (PSCs) to improve efficiency and stability. It highlights chemical, physical, energetic, and field-effect methods, along with advanced characterization techniques, to overcome defects.
Area of Science:
- Materials Science
- Renewable Energy
- Photovoltaics
Background:
- Perovskite solar cells (PSCs) demonstrate rapid advancements in efficiency and stability.
- Material defects in PSCs significantly impact charge recombination, ion migration, and degradation.
- Effective passivation strategies are crucial for high-performance PSCs.
Purpose of the Study:
- To classify and review existing and emerging passivation strategies for PSCs.
- To provide guidance on passivation protocols for improved PSC performance.
- To identify challenges and future research directions in PSC passivation.
Main Methods:
- Classification of passivation strategies into chemical, physical, energetic, and field-effect types.
- Review of established and novel passivation techniques.
- Discussion of advanced characterization methods for mechanism scrutiny.
Main Results:
- Detailed overview of defect passivation mechanisms in PSCs.
- Categorization of strategies addressing charge recombination, ion migration, and degradation.
- Emphasis on the role of advanced characterization in understanding passivation effects.
Conclusions:
- Judicious combinations of different passivation strategies are key for future high-efficiency and stable PSCs.
- Further research is needed to advance passivation techniques and characterization methods.
- Addressing material defects through passivation is essential for the commercial viability of PSCs.
