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Bifunctional Stabilization of All-Inorganic α-CsPbI3 Perovskite for 17% Efficiency Photovoltaics
Abstract
The all-inorganic α-CsPbI 3 perovskite with the most suitable band gap faces serious challenges of low phase stability and high moisture sensitivity. We discover that a simple phenyltrimethylammonium bromide (PTABr) post-treatment could achieve a bifunctional stabilization including both gradient Br doping (or alloying) and surface passivation. The PTABr treatment on CsPbI 3 only induces less than 5 nm blue shift in UV–vis absorbance but significantly stabilize the perovskite phase with much better stability. Finally, the highly stable PTABr treated CsPbI 3 based perovskite solar cells exhibit a reproducible photovoltaic performance with a champion efficiency up to 17.06% and stable output of 16.3%. Therefore, this one-step bifunctional stabilization of perovskite through gradient halide doping and surface organic cation passivation presents a novel and promising strategy to design stable and high performance all-inorganic lead halide.
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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
Strongly emissive perovskite nanocrystal inks for high-voltage solar cells
Akkerman, Q. A., Gandini, M., Di Stasio, F., Rastogi, P., Palazon, F., Bertoni, G., Ball, J. M., Prato, M., Petrozza, A., & Manna, L. (2016) · Nature Energy · doi:10.1038/nenergy.2016.194 · Cited by 721
Cited by
Chemical stability and instability of inorganic halide perovskites
Zhou, Y., & Zhao, Y. (2019) · Energy & Environmental Science · doi:10.1039/c8ee03559h · Cited by 784
Self-citationRecent progress of inorganic perovskite solar cells
Tai, Q., Tang, K.-C., & Yan, F. (2019) · Energy & Environmental Science · doi:10.1039/c9ee01479a · Cited by 528
Myths and reality of HPbI3 in halide perovskite solar cells
Ke, W., Spanopoulos, I., Stoumpos, C. C., & Kanatzidis, M. G. (2018) · Nature Communications · doi:10.1038/s41467-018-07204-y · Cited by 304
Perovskite Solar Cells: Can We Go Organic‐Free, Lead‐Free, and Dopant‐Free?
Miyasaka, T., Kulkarni, A., Kim, G. M., Öz, S., & Jena, A. K. (2020) · Advanced Energy Materials · doi:10.1002/aenm.201902500 · Cited by 293
High-Efficiency Silicon Heterojunction Solar Cells: Materials, Devices and Applications
Liu, Y., Li, Y., Wu, Y., Yang, G., Mazzarella, L., Procel-Moya, P., Tamboli, A. C., Weber, K., Boccard, M., Isabella, O., et al. (2020) · Materials Science and Engineering: R: Reports · doi:10.1016/j.mser.2020.100579 · Cited by 293
Metadata
- Authors
- Wang, Y., Zhang, T., Kan, M., & Zhao, Y.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2018-09-24
- Volume
- 140
- Issue
- 39
- Pages
- 12345-12348
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2893566826
- Cited by
- 690
- References
- 2
- FWCI
- 36.88
- Type
- journal article
- Language
- en
- Open access
- closed
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- Wang, Y., Zhang, T., Kan, M., & Zhao, Y. (2018). Bifunctional Stabilization of All-Inorganic α-CsPbI3 Perovskite for 17% Efficiency Photovoltaics. Journal of the American Chemical Society. https://doi.org/10.1021/jacs.8b07927
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