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The Role of Dimethylammonium Iodide in CsPbI3 Perovskite Fabrication: Additive or Dopant?
Abstract
The controllable growth of CsPbI 3 perovskite thin films with desired crystal phase and morphology is crucial for the development of high efficiency inorganic perovskite solar cells (PSCs). The role of dimethylammonium iodide (DMAI) used in CsPbI 3 perovskite fabrication was carefully investigated. We demonstrated that the DMAI is an effective volatile additive to manipulate the crystallization process of CsPbI 3 inorganic perovskite films with different crystal phases and morphologies. The thermogravimetric analysis results indicated that the sublimation of DMAI is sensitive to moisture, and a proper atmosphere is helpful for the DMAI removal. The time‐of‐flight secondary ion mass spectrometry and nuclear magnetic resonance results confirmed that the DMAI additive would not alloy into the crystal lattice of CsPbI 3 perovskite. Moreover, the DMAI residues in CsPbI 3 perovskite can deteriorate the photovoltaic performance and stability. Finally, the PSCs based on phenyltrimethylammonium chloride passivated CsPbI 3 inorganic perovskite achieved a record champion efficiency up to 19.03 %.
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Kim, H.-S., Lee, C.-R., Im, J.-H., Lee, K.-B., Moehl, T., Marchioro, A., Moon, S.-J., Humphry-Baker, R., Yum, J.-H., Moser, J. E., et al. (2012) · Scientific Reports · doi:10.1038/srep00591 · Cited by 8,092
Cited by
Controlled n‐Doping in Air‐Stable CsPbI2Br Perovskite Solar Cells with a Record Efficiency of 16.79%
Han, Y., Zhao, H., Duan, C., Yang, S., Yang, Z., Liu, Z., & Liu, S. (. (2020) · Advanced Functional Materials · doi:10.1002/adfm.201909972 · Cited by 367
Metadata
- Authors
- Wang, Y., Liu, X., Zhang, T., Wang, X., Kan, M., Shi, J., & Zhao, Y.
- Venue
- Angewandte Chemie International Edition
- Publisher
- Wiley
- Published
- 2019-10-04
- Volume
- 58
- Issue
- 46
- Pages
- 16691-16696
- ISSN
- 1433-7851 (ISSN-L)
- 1521-3773
- OpenAlex
- W2974335174
- Cited by
- 546
- References
- 1
- FWCI
- 28.46
- Type
- journal article
- Language
- en
- Open access
- closed
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- Wang, Y., Liu, X., Zhang, T., Wang, X., Kan, M., Shi, J., & Zhao, Y. (2019). The Role of Dimethylammonium Iodide in CsPbI3 Perovskite Fabrication: Additive or Dopant? Angewandte Chemie International Edition. https://doi.org/10.1002/anie.201910800
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