The DOI matches its Crossref record; 42 of the 42 references it cites were found in a registry or an index.
Light-induced reversal of ion segregation in mixed-halide perovskites
Open accessAbstract
Bandgap instability due to light-induced phase segregation in mixed-halide perovskites presents a major challenge for their future commercial use. Here we demonstrate that photoinduced halide-ion segregation can be completely reversed at sufficiently high illumination intensities, enabling control of the optical bandgap of a mixed-halide perovskite single crystal by optimizing the input photogenerated carrier density. We develop a polaron-based two-dimensional lattice model that rationalizes the experimentally observed phenomena by assuming that the driving force for photoinduced halide segregation is dependent on carrier-induced strain gradients that vanish at high carrier densities. Using illumination sources with different excitation intensities, we demonstrate write–read–erase experiments showing that it is possible to store information in the form of latent images over several minutes. The ability to control the local halide-ion composition with light intensity opens opportunities for the use of mixed-halide perovskites in concentrator and tandem solar cells, as well as in high-power light-emissive devices and optical memory applications. Depending on its intensity, light irradiation is shown to induce not only segregation but also remixing of halide ions in mixed-halide perovskites, enabling in situ and localized control of chemical composition and optical bandgap in these materials.
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Cites
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A mixed-cation lead mixed-halide perovskite absorber for tandem solar cells
McMeekin, D. P., Sadoughi, G., Rehman, W., Eperon, G. E., Saliba, M., Hörantner, M. T., Haghighirad, A., Sakai, N., Korte, L., Rech, B., et al. (2016) · Science · doi:10.1126/science.aad5845 · Cited by 3,067
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Eames, C., Frost, J. M., Barnes, P. R. F., O’Regan, B. C., Walsh, A., & Islam, M. S. (2015) · Nature Communications · doi:10.1038/ncomms8497 · Cited by 2,889
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Reversible photo-induced trap formation in mixed-halide hybrid perovskites for photovoltaics
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Maximizing and stabilizing luminescence from halide perovskites with potassium passivation
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Cited by
Stability challenges for the commercialization of perovskite–silicon tandem solar cells
Duan, L., Walter, D., Chang, N., Bullock, J., Kang, D., Phang, S. P., Weber, K., White, T., Macdonald, D., Catchpole, K., et al. (2023) · Nature Reviews Materials · doi:10.1038/s41578-022-00521-1 · Cited by 444
Prospects for metal halide perovskite-based tandem solar cells
Wang, R., Huang, T., Xue, J., Tong, J., Zhu, K., & Yang, Y. (2021) · Nature Photonics · doi:10.1038/s41566-021-00809-8 · Cited by 409
Myung, C. W., Hajibabaei, A., Cha, J., Ha, M., Kim, J., & Kim, K. S. (2022) · Advanced Energy Materials · doi:10.1002/aenm.202202279 · Cited by 54
Direct laser writing on halide perovskites: from mechanisms to applications
Sheng, Y., Wen, X., Jia, B., & Gan, Z. (2024) · Light: Advanced Manufacturing · doi:10.37188/lam.2024.004 · Cited by 22
Metadata
- Authors
- Mao, W., Hall, C. R., Bernardi, S., Cheng, Y.-B., Widmer-Cooper, A., Smith, T. A., & Bach, U.
- Venue
- Nature Materials
- Published
- 2020-10-19
- Volume
- 20
- Issue
- 1
- Pages
- 55-61
- ISSN
- 1476-1122 (ISSN-L)
- 1476-4660
- OpenAlex
- W3093066450
- Cited by
- 265
- References
- 42
- FWCI
- 9.87
- Type
- journal article
- Language
- en
- Open access
- green
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