The DOI matches its Crossref record; 53 of the 53 references it cites were found in a registry or an index.
Electronic Traps and Phase Segregation in Lead Mixed-Halide Perovskite
Open accessAbstract
Abstract An understanding of the factors driving halide segregation in lead mixed-halide perovskites is required for their implementation in tandem solar cells with existing silicon technology. Here we report that the halide segregation dynamics observed in the photoluminescence from CH3NH3Pb(Br0.5I0.5)3 is strongly influenced by the atmospheric environment, and that encapsulation of films with a layer of poly(methyl methacrylate) allows for halide segregation dynamics to be fully reversible and repeatable. We further establish an empirical model directly linking the amount of halide segregation observed in the photoluminescence to the fraction of charge carriers recombining through trap-mediated channels, and the photon flux absorbed. From such quantitative analysis we show that under pulsed illumination, the frequency of the modulation alone has no influence on the segregation dynamics. Additionally, we extrapolate that working CH3NH3Pb(Br0.5I0.5)3 perovskite cells would require a reduction of the trap-related charge carrier recombination rate to ≲105s–1 in order for halide segregation to be sufficiently suppressed.
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Cites
Detailed Balance Limit of Efficiency of p-n Junction Solar Cells
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Self-citationIonic transport in hybrid lead iodide perovskite solar cells
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Self-citationLi, H., Zhang, C., Gong, C., Zhang, D., Zhang, H., Zhuang, Q., Yu, X., Gong, S., Chen, X., Yang, J., et al. (2023) · Nature Energy · doi:10.1038/s41560-023-01295-8 · Cited by 404
Performance-limiting nanoscale trap clusters at grain junctions in halide perovskites
Doherty, T. A. S., Winchester, A. J., Macpherson, S., Johnstone, D. N., Pareek, V., Tennyson, E. M., Kosar, S., Kosasih, F. U., Anaya, M., Abdi-Jalebi, M., et al. (2020) · Nature · doi:10.1038/s41586-020-2184-1 · Cited by 369
Yang, J.-N., Song, Y., Yao, J.-S., Wang, K.-H., Wang, J.-J., Zhu, B.-S., Yao, M.-M., Rahman, S. U., Lan, Y.-F., Fan, F.-J., et al. (2020) · Journal of the American Chemical Society · doi:10.1021/jacs.9b11719 · Cited by 361
Light-induced reversal of ion segregation in mixed-halide perovskites
Mao, W., Hall, C. R., Bernardi, S., Cheng, Y.-B., Widmer-Cooper, A., Smith, T. A., & Bach, U. (2021) · Nature Materials · doi:10.1038/s41563-020-00826-y · Cited by 265
Metadata
- Authors
- Knight, A. J., Wright, A. D., Patel, J. B., McMeekin, D. P., Snaith, H. J., Johnston, M. B., & Herz, L. M.
- Venue
- ACS Energy Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2018-11-27
- Volume
- 4
- Issue
- 1
- Pages
- 75-84
- ISSN
- 2380-8195 (ISSN-L)
- OpenAlex
- W2903174026
- Cited by
- 313
- References
- 53
- FWCI
- 11.38
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Knight, A. J., Wright, A. D., Patel, J. B., McMeekin, D. P., Snaith, H. J., Johnston, M. B., & Herz, L. M. (2019). Electronic Traps and Phase Segregation in Lead Mixed-Halide Perovskite. ACS Energy Letters. https://doi.org/10.1021/acsenergylett.8b02002
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