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Isomer‐Pure Bis‐PCBM‐Assisted Crystal Engineering of Perovskite Solar Cells Showing Excellent Efficiency and Stability
Open accessAbstract
A fullerene derivative (α‐bis‐PCBM) is purified from an as‐produced bis‐phenyl‐C 61‐butyric acid methyl ester (bis‐[60]PCBM) isomer mixture by preparative peak‐recycling, high‐performance liquid chromatography, and is employed as a templating agent for solution processing of metal halide perovskite films via an antisolvent method. The resulting α‐bis‐PCBM‐containing perovskite solar cells achieve better stability, efficiency, and reproducibility when compared with analogous cells containing PCBM. α‐bis‐PCBM fills the vacancies and grain boundaries of the perovskite film, enhancing the crystallization of perovskites and addressing the issue of slow electron extraction. In addition, α‐bis‐PCBM resists the ingression of moisture and passivates voids or pinholes generated in the hole‐transporting layer. As a result, a power conversion efficiency (PCE) of 20.8% is obtained, compared with 19.9% by PCBM, and is accompanied by excellent stability under heat and simulated sunlight. The PCE of unsealed devices dropped by less than 10% in ambient air (40% RH) after 44 d at 65 °C, and by 4% after 600 h under continuous full‐sun illumination and maximum power point tracking, respectively.
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Cites
Achieving long-term stable perovskite solar cells via ion neutralization
Back, H., Kim, G., Kim, J., Kong, J., Kim, T. K., Kang, H., Kim, H., Lee, J., Lee, S., & Lee, K. (2016) · Energy & Environmental Science · doi:10.1039/c6ee00612d · Cited by 337
Cited by
Tailored Amphiphilic Molecular Mitigators for Stable Perovskite Solar Cells with 23.5% Efficiency
Zhu, H., Liu, Y., Eickemeyer, F. T., Pan, L., Ren, D., Ruiz‐Preciado, M. A., Carlsen, B., Yang, B., Dong, X., Wang, Z., et al. (2020) · Advanced Materials · doi:10.1002/adma.201907757 · Cited by 412
Self-citationZhang, F., Bi, D., Pellet, N., Xiao, C., Li, Z., Berry, J. J., Zakeeruddin, S. M., Zhu, K., & Grätzel, M. (2018) · Energy & Environmental Science · doi:10.1039/c8ee02252f · Cited by 341
Self-citationKosasih, F. U., & Ducati, C. (2018) · Nano Energy · doi:10.1016/j.nanoen.2018.02.055 · Cited by 86
Metadata
- Authors
- Zhang, F., Shi, W., Luo, J., Pellet, N., Yi, C., Li, X., Zhao, X., Dennis, T. J. S., Li, X., Wang, S., Xiao, Y., Zakeeruddin, S. M., Bi, D., & Grätzel, M.
- Venue
- Advanced Materials
- Publisher
- Wiley
- Published
- 2017-02-27
- Volume
- 29
- Issue
- 17
- ISSN
- 0935-9648 (ISSN-L)
- 1521-4095
- OpenAlex
- W2594454110
- Cited by
- 390
- References
- 1
- FWCI
- 26.07
- Type
- journal article
- Language
- en
- Open access
- green
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- Zhang, F., Shi, W., Luo, J., Pellet, N., Yi, C., Li, X., Zhao, X., Dennis, T. J. S., Li, X., Wang, S., Xiao, Y., Zakeeruddin, S. M., Bi, D., & Grätzel, M. (2017). Isomer‐Pure Bis‐PCBM‐Assisted Crystal Engineering of Perovskite Solar Cells Showing Excellent Efficiency and Stability. Advanced Materials. https://doi.org/10.1002/adma.201606806
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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