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Updated: Oct 11, 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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23.7% Efficient inverted perovskite solar cells by dual interfacial modification.
Matteo Degani1,2, Qingzhi An2, Miguel Albaladejo-Siguan2
1Department of Chemistry and INSTM, University of Pavia, Via T. Taramelli 14, 27100 Pavia, Italy.
Science Advances
|December 1, 2021
Summary
Researchers improved inverted perovskite solar cells using dual interfacial modification with large organic cations. This boosts efficiency and stability, overcoming previous performance gaps in this solar cell architecture.
Area of Science:
- Materials Science
- Renewable Energy
- Photovoltaics
Background:
- Inverted perovskite solar cells show promise but lag behind standard architectures in performance.
- Interfacial engineering is crucial for optimizing perovskite solar cell efficiency and stability.
Purpose of the Study:
- To enhance the performance of inverted perovskite solar cells.
- To investigate a dual interfacial modification strategy using large organic cations.
Main Methods:
- Incorporation of large organic cations at the bottom and top interfaces of the perovskite active layer.
- Compatibility testing with bulk modification using ionic liquids.
Main Results:
- Simultaneous improvement in open-circuit voltage (up to 1.184 V) and fill factor (up to 85%).
- Achieved a champion device efficiency of 23.7%.
- Demonstrated compatibility with ionic liquid bulk modification for enhanced stability.
Conclusions:
- Dual interfacial modification with large organic cations is an effective strategy for improving inverted perovskite solar cells.
- This approach leads to highly efficient and stable perovskite solar devices.
- The method is compatible with existing perovskite processing techniques.
