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Updated: Jul 1, 2026
05:15
Flash Infrared Annealing for Perovskite Solar Cell Processing
Published on: February 3, 2021
Interfacial stability in single- and multi-junction perovskite solar cells.
Liangchen Qian1, Bohong Chang1, Danpeng Gao1
1Department of Chemistry, City University of Hong Kong Hong Kong P. R. China zonglzhu@cityu.edu.hk.
Chemical Science
|June 30, 2026
Summary
Perovskite solar cells show great promise but degrade at interfaces. This review unifies understanding of interfacial chemistry to guide design rules for improved operational stability in perovskite photovoltaics.
Area of Science:
- Materials Science
- Chemistry
- Physics
Background:
- Perovskite photovoltaics (PV) achieve high efficiencies and low costs.
- Operational stability, particularly at interfaces, is a critical bottleneck for perovskite PV.
- Single- and multi-junction perovskite cells demonstrate significant future potential.
Purpose of the Study:
- To analyze perovskite solar cell interfaces as metastable chemical microenvironments.
- To establish a unified framework for comparing degradation pathways in single-junction versus tandem cells.
- To distill actionable design rules from chemical insights for enhanced interfacial stability.
Main Methods:
- Review and analysis of interfacial chemistry in perovskite solar cells.
- Characterization of interfaces considering defect densities, chemical potential gradients, electric fields, and mechanical stress.
- Comparative analysis of degradation mechanisms in single-junction and tandem architectures.
Main Results:
- Interfaces in perovskite PV are identified as complex microenvironments prone to degradation.
- A unified framework based on interfacial chemistry evolution is proposed for degradation pathway comparison.
- Actionable chemistry-to-function design rules are derived for improving stability.
Conclusions:
- Understanding interfacial chemistry is crucial for enhancing the operational stability of perovskite photovoltaics.
- Critical gaps in multi-junction interfacial stability require further investigation.
- Scalable engineering solutions are needed to translate laboratory advancements into commercial applications.
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