Related Experiment Video
Updated: Aug 5, 2026
08:12
Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films
Published on: September 8, 2017
Crystallization Modulation for Stable Wide-Bandgap Perovskite Solar Cells and Modules
Leyu Bi1,2, Jiarong Wang2,3, Qiang Fu2,3,4
1Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong.
Advanced Materials (Deerfield Beach, Fla.)
|August 1, 2026
Summary
Wide-bandgap perovskites are crucial for high-efficiency perovskite solar cells (PSCs). This review details how controlling their crystallization addresses challenges like phase segregation and defects, paving the way for advanced solar technology.
Area of Science:
- Materials Science
- Renewable Energy
- Photovoltaics
Background:
- Single-junction perovskite solar cells (PSCs) approach theoretical efficiency limits.
- Perovskite-based tandem solar cells (TSCs) offer a path to higher performance.
- Wide-bandgap (WBG) perovskites are key for TSCs but face crystallization challenges.
Purpose of the Study:
- To review challenges in WBG perovskite crystallization.
- To explore strategies for modulating WBG perovskite crystallization.
- To outline future directions for WBG perovskite development.
Main Methods:
- Review of literature on WBG perovskite crystallization.
- Analysis of strategies for crystallization modulation (interface, composition, solvent, process, additive engineering).
- Summary of large-area fabrication and stability studies.
Main Results:
- Inhomogeneous crystallization causes phase segregation, defects, and instability in WBG perovskites.
- Various engineering strategies can precisely control nucleation and growth for high-quality WBG perovskites.
- Advances in large-area fabrication and stability are emerging.
Conclusions:
- Controlling WBG perovskite crystallization is essential for high-performance solar cells.
- Tailoring crystallization through engineering approaches is critical for overcoming current limitations.
- Further research is needed for stable, large-area WBG perovskite fabrication.
