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Pure Cs4PbBr6: Highly Luminescent Zero-Dimensional Perovskite Solids
Open accessAbstract
Abstract So-called zero-dimensional perovskites, such as Cs4PbBr6, promise outstanding emissive properties. However, Cs4PbBr6 is mostly prepared by melting of precursors that usually leads to a coformation of undesired phases. Here, we report a simple low-temperature solution-processed synthesis of pure Cs4PbBr6 with remarkable emission properties. We found that pure Cs4PbBr6 in solid form exhibits a 45% photoluminescence quantum yield (PLQY), in contrast to its three-dimensional counterpart, CsPbBr3, which exhibits more than 2 orders of magnitude lower PLQY. Such a PLQY of Cs4PbBr6 is significantly higher than that of other solid forms of lower-dimensional metal halide perovskite derivatives and perovskite nanocrystals. We attribute this dramatic increase in PL to the high exciton binding energy, which we estimate to be ∼353 meV, likely induced by the unique Bergerhoff–Schmitz–Dumont-type crystal structure of Cs4PbBr6, in which metal-halide-comprised octahedra are spatially confined. Our findings bring this class of perovskite derivatives to the forefront of color-converting and light-emitting applications.
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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
Perovskite Nanocrystals as a Color Converter for Visible Light Communication
Dursun, I., Shen, C., Parida, M. R., Pan, J., Sarmah, S. P., Priante, D., Alyami, N., Liu, J., Saidaminov, M. I., Alias, M. S., et al. (2016) · ACS Photonics · doi:10.1021/acsphotonics.6b00187 · Cited by 272
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Cited by
Genesis, challenges and opportunities for colloidal lead halide perovskite nanocrystals
Akkerman, Q. A., Rainò, G., Kovalenko, M. V., & Manna, L. (2018) · Nature Materials · doi:10.1038/s41563-018-0018-4 · Cited by 2,287
All-inorganic perovskite nanocrystal scintillators
Chen, Q., Wu, J., Ou, X., Huang, B., Almutlaq, J., Zhumekenov, A. A., Guan, X., Han, S., Liang, L., Yi, Z., et al. (2018) · Nature · doi:10.1038/s41586-018-0451-1 · Cited by 2,052
Self-citationChemical stability and instability of inorganic halide perovskites
Zhou, Y., & Zhao, Y. (2019) · Energy & Environmental Science · doi:10.1039/c8ee03559h · Cited by 784
Akkerman, Q. A., Park, S., Radicchi, E., Nunzi, F., Mosconi, E., De Angelis, F., Brescia, R., Rastogi, P., Prato, M., & Manna, L. (2017) · Nano Letters · doi:10.1021/acs.nanolett.6b05262 · Cited by 600
Structural Diversity in White-Light-Emitting Hybrid Lead Bromide Perovskites
Mao, L., Guo, P., Kepenekian, M., Hadar, I., Katan, C., Even, J., Schaller, R. D., Stoumpos, C. C., & Kanatzidis, M. G. (2018) · Journal of the American Chemical Society · doi:10.1021/jacs.8b08691 · Cited by 508
Metadata
- Authors
- Saidaminov, M. I., Almutlaq, J., Sarmah, S., Dursun, I., Zhumekenov, A. A., Begum, R., Pan, J., Cho, N., Mohammed, O. F., & Bakr, O. M.
- Venue
- ACS Energy Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2016-09-29
- Volume
- 1
- Issue
- 4
- Pages
- 840-845
- ISSN
- 2380-8195 (ISSN-L)
- OpenAlex
- W2525658420
- Cited by
- 595
- References
- 2
- FWCI
- 27.59
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Saidaminov, M. I., Almutlaq, J., Sarmah, S., Dursun, I., Zhumekenov, A. A., Begum, R., Pan, J., Cho, N., Mohammed, O. F., & Bakr, O. M. (2016). Pure Cs4PbBr6: Highly Luminescent Zero-Dimensional Perovskite Solids. ACS Energy Letters. https://doi.org/10.1021/acsenergylett.6b00396
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