The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Tracking Iodide and Bromide Ion Segregation in Mixed Halide Lead Perovskites during Photoirradiation
Abstract
Mixed halide lead perovskites (e.g., CH 3 NH 3 PbBr x I 3– x ) undergo phase segregation creating iodide-rich and bromide-rich domains when subjected to visible irradiation. This intriguing aspect of halide ion movement in mixed halide films is now being tracked through excited-state behavior using emission and transient absorption spectroscopy tools. These transient experiments have allowed us to establish the time scale with which such separation occurs under laser irradiation (405 nm, 25 mW/cm 2 to 1.7 W/cm 2 ) as well as dark recovery. While the phase separation occurs with a rate constant of 0.1–0.3 s –1, the recovery occurs over a time period of several minutes to an hour. The relative photoluminescence quantum yield observed for Br-rich regions (em. max 530 nm) is nearly 2 orders of magnitude lower than that of I-rich regions (em. max 760 nm) and arises from the fact that I-rich regions serve as sinks for photogenerated charge carriers. Understanding such cascading charge transfer to localized sites could further enable the design of gradient halide structures in mixed halide systems.
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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
Deschler, F., Price, M., Pathak, S., Klintberg, L. E., Jarausch, D.-D., Higler, R., Hüttner, S., Leijtens, T., Stranks, S. D., Snaith, H. J., et al. (2014) · The Journal of Physical Chemistry Letters · doi:10.1021/jz5005285 · Cited by 1,753
Post-synthetic halide conversion and selective halogen capture in hybrid perovskites
Solis-Ibarra, D., Smith, I. C., & Karunadasa, H. I. (2015) · Chemical Science · doi:10.1039/c5sc01135c · Cited by 127
Cited by
Origin of Reversible Photoinduced Phase Separation in Hybrid Perovskites
Bischak, C. G., Hetherington, C. L., Wu, H., Aloni, S., Ogletree, D. F., Limmer, D. T., & Ginsberg, N. S. (2017) · Nano Letters · doi:10.1021/acs.nanolett.6b04453 · Cited by 745
Causes and Solutions of Recombination in Perovskite Solar Cells
Chen, J., & Park, N. (2019) · Advanced Materials · doi:10.1002/adma.201803019 · Cited by 733
Progress on Perovskite Materials and Solar Cells with Mixed Cations and Halide Anions
Ono, L. K., Juarez-Perez, E. J., & Qi, Y. (2017) · ACS Applied Materials & Interfaces · doi:10.1021/acsami.7b06001 · Cited by 593
Frontiers, opportunities, and challenges in perovskite solar cells: A critical review
Ansari, M. I. H., Qurashi, A., & Nazeeruddin, M. K. (2018) · Journal of Photochemistry and Photobiology C: Photochemistry Reviews · doi:10.1016/j.jphotochemrev.2017.11.002 · Cited by 485
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
Metadata
- Authors
- Yoon, S. J., Draguta, S., Manser, J. S., Sharia, O., Schneider, W. F., Kuno, M., & Kamat, P. V.
- Venue
- ACS Energy Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2016-06-22
- Volume
- 1
- Issue
- 1
- Pages
- 290-296
- ISSN
- 2380-8195 (ISSN-L)
- OpenAlex
- W2470796292
- Cited by
- 419
- References
- 3
- FWCI
- 22.11
- Type
- journal article
- Language
- en
- Open access
- closed
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- Yoon, S. J., Draguta, S., Manser, J. S., Sharia, O., Schneider, W. F., Kuno, M., & Kamat, P. V. (2016). Tracking Iodide and Bromide Ion Segregation in Mixed Halide Lead Perovskites during Photoirradiation. ACS Energy Letters. https://doi.org/10.1021/acsenergylett.6b00158
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