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Light-Induced Phase Segregation in Halide-Perovskite Absorbers
Abstract
In the few short years since the inception of single-junction perovskite solar cells, their efficiencies have skyrocketed. Perovskite absorbers have at least as much to offer tandem solar cells as they do for single-junction cells due in large part to their tunable band gaps. However, modifying the perovskite band structure via halide substitution, the method that has been most effective at tuning band gaps, leads to instabilities in the material for some compositions. Here, we discuss the thermodynamic origin and consequences of light-induced phase segregation observed in mixed-halide perovskites. We propose that, as the phase segregation is rooted in halide migration and possibly affected by lattice strain, modifying the perovskite composition and lattice structure, increasing compositional uniformity, and reducing defect concentrations could significantly improve stability.
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Stranks, S. D., Eperon, G. E., Grancini, G., Menelaou, C., Alcocer, M. J. P., Leijtens, T., Herz, L. M., Petrozza, A., & Snaith, H. J. (2013) · Science · doi:10.1126/science.1243982 · Cited by 10,413
Cited by
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Opportunities and challenges for tandem solar cells using metal halide perovskite semiconductors
Leijtens, T., Bush, K. A., Prasanna, R., & McGehee, M. D. (2018) · Nature Energy · doi:10.1038/s41560-018-0190-4 · Cited by 1,121
Self-citationPrasanna, R., Gold-Parker, A., Leijtens, T., Conings, B., Babayigit, A., Boyen, H.-G., Toney, M. F., & McGehee, M. D. (2017) · Journal of the American Chemical Society · doi:10.1021/jacs.7b04981 · Cited by 893
Self-citationLight-induced lattice expansion leads to high-efficiency perovskite solar cells
Tsai, H., Asadpour, R., Blancon, J.-C., Stoumpos, C. C., Durand, O., Strzalka, J. W., Chen, B., Verduzco, R., Ajayan, P. M., Tretiak, S., et al. (2018) · Science · doi:10.1126/science.aap8671 · Cited by 770
Causes and Solutions of Recombination in Perovskite Solar Cells
Chen, J., & Park, N. (2019) · Advanced Materials · doi:10.1002/adma.201803019 · Cited by 733
Metadata
- Authors
- Slotcavage, D. J., Karunadasa, H. I., & McGehee, M. D.
- Venue
- ACS Energy Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2016-11-16
- Volume
- 1
- Issue
- 6
- Pages
- 1199-1205
- ISSN
- 2380-8195 (ISSN-L)
- OpenAlex
- W2550552823
- Cited by
- 712
- References
- 1
- FWCI
- 30.19
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Light-Induced Phase Segregation in Halide-Perovskite Absorbers. https://app.cochat.ai/papers/10.1021/acsenergylett.6b00495
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- Slotcavage, D. J., Karunadasa, H. I., & McGehee, M. D. (2016). Light-Induced Phase Segregation in Halide-Perovskite Absorbers. ACS Energy Letters. https://doi.org/10.1021/acsenergylett.6b00495
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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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