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Updated: Sep 21, 2025
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Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance
Published on: February 27, 2017
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High-Performance and Stable Semi-Transparent Perovskite Solar Cells through Composition Engineering
Jae Choul Yu1, Bin Li1, Christopher J Dunn2
1ARC Centre of Excellence in Exciton Science, Department of Materials Science and Engineering, Monash University, Clayton, Victoria, 3800, Australia.
Summary
Cesium and formamidinium modified perovskite solar cells offer high efficiency and visible transmittance for solar windows. These semi-transparent perovskite solar cells demonstrate excellent performance and stability, paving the way for advanced solar energy applications.
Area of Science:
- Materials Science
- Photovoltaics
- Solid-State Chemistry
Background:
- Semi-transparent perovskite solar cells (ST-PeSCs) are promising for solar window applications due to their high efficiency and tunable visible transmittance.
- Research is needed to understand how perovskite composition affects ST-PeSC performance and long-term stability.
Purpose of the Study:
- To investigate the impact of A- and X-site modifications in APbX3 perovskites on ST-PeSC performance and stability.
- To optimize perovskite composition for enhanced solar window applications.
Main Methods:
- Experimental synthesis and characterization of various perovskite compositions.
- Device fabrication and performance testing of ST-PeSCs.
- Computational simulations to understand material properties.
- Long-term stability testing under operational stress (illumination and heating).
Main Results:
- A perovskite composition with cesium (Cs) and formamidinium (FA) at the A-site yielded optimal device performance across various band gaps tuned by X-site anions.
- Achieved power conversion efficiencies of 15.5% and 4.1% for ST-PeSCs with average visible transmittance ranging from 20.7% to 52.4%.
- CsFA-based ST-PeSCs exhibited superior long-term operational stability.
Conclusions:
- A- and X-site modification is crucial for tuning ST-PeSC performance and stability.
- The CsFA perovskite composition is highly effective for high-efficiency, stable semi-transparent solar windows.
- CsFA precursor solutions demonstrate enhanced stability compared to other mixed A-site compositions.
