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Updated: Aug 6, 2026
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Flash Infrared Annealing for Perovskite Solar Cell Processing
Published on: February 3, 2021
Fully Unlocking Additive's Effects for High-Performance Perovskite Photovoltaics by Incorporating During
Guojun Mi1,2,3, Qing Lian1, Dongyang Li1
1Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China.
Small (Weinheim an Der Bergstrasse, Germany)
|July 26, 2026
Summary
Incorporating additives during crystallization (DC) enhances perovskite film quality by precisely controlling their distribution. This novel approach minimizes defects and strain, boosting solar cell efficiency and stability.
Area of Science:
- Materials Science
- Photovoltaics
- Nanotechnology
Background:
- Perovskite films are crucial for solar energy conversion.
- Defects and strain in perovskite films limit photovoltaic performance and durability.
- Conventional additive engineering methods struggle with optimal spatial distribution and efficacy.
Purpose of the Study:
- To develop a new strategy for incorporating additives during perovskite crystallization (DC).
- To investigate the multifunctional roles of additives when incorporated during crystallization.
- To achieve strain-free, defect-tolerant perovskite films for enhanced solar cell performance.
Main Methods:
- Developing a 'during crystallization' (DC) additive incorporation strategy.
- Precisely controlling additive accumulation at grain boundaries.
- Optimizing nucleation temperature alongside DC additive incorporation.
Main Results:
- The DC strategy enables precise additive distribution at grain boundaries, modulating kinetics, orientation, and strain.
- Achieved strain-free, defect-tolerant perovskite films.
- Demonstrated a champion power conversion efficiency of 26.32% in solar cells.
- Exhibited excellent operational stability, retaining 92% performance after 1200 hours.
Conclusions:
- The spatiotemporal additive-engineering paradigm (DC) fully leverages additive multifunctionality.
- This approach provides a generalizable route to high-performance and durable perovskite optoelectronics.
- The DC method overcomes limitations of conventional additive engineering for perovskite films.
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