Passivation Strategies through Surface Reconstruction toward Highly Efficient and Stable Perovskite Solar Cells on n-i-p Architecture
Abstract
:1. Introduction
2. Surface Reconstruction with Formation of Three-Dimensional Perovskite Interlayer
3. Surface Reconstruction with Formation of Low-Dimensional Perovskite Interlayer
4. Surface Reconstruction with Mixed-Salt Passivation through Synergistic Effect
5. Summary and Outlook
- (1)
- Reconstructing the perovskite surface through the formation of an optimized layer of either 3D or low-dimensional perovskite aiming to reduce trap defects, hinder ion migration and suppress the non-radiative recombination centers.
- (2)
- Adjusting the energy levels through the newly formed interlayer to improve the charge carrier extraction and/or block electron transfer.
- (3)
- Enhancing the surface hydrophobicity through the formation of a more robust low-dimensional perovskite layer, which consequently improves the device stability, especially under humid conditions. In comparison, the formation of an additional 3D perovskite interlayer shows limited improvement in long-term stability due to the inherent instability of the 3D perovskite against moisture.
- (4)
- Combined improvements provided by mixed-salt system through synergistic effect.
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Conflicts of Interest
References
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Suo, J.; Yang, B.; Hagfeldt, A. Passivation Strategies through Surface Reconstruction toward Highly Efficient and Stable Perovskite Solar Cells on n-i-p Architecture. Energies 2021, 14, 4836. https://doi.org/10.3390/en14164836
Suo J, Yang B, Hagfeldt A. Passivation Strategies through Surface Reconstruction toward Highly Efficient and Stable Perovskite Solar Cells on n-i-p Architecture. Energies. 2021; 14(16):4836. https://doi.org/10.3390/en14164836
Chicago/Turabian StyleSuo, Jiajia, Bowen Yang, and Anders Hagfeldt. 2021. "Passivation Strategies through Surface Reconstruction toward Highly Efficient and Stable Perovskite Solar Cells on n-i-p Architecture" Energies 14, no. 16: 4836. https://doi.org/10.3390/en14164836