The DOI matches its Crossref record; 50 of the 50 references it cites were found in a registry or an index.
Highly Emissive Divalent-Ion-Doped Colloidal CsPb1–xMxBr3 Perovskite Nanocrystals through Cation Exchange
Open accessAbstract
Abstract Colloidal CsPbX3 (X = Br, Cl, and I) perovskite nanocrystals (NCs) have emerged as promising phosphors and solar cell materials due to their remarkable optoelectronic properties. These properties can be tailored by not only controlling the size and shape of the NCs but also postsynthetic composition tuning through topotactic anion exchange. In contrast, property control by cation exchange is still underdeveloped for colloidal CsPbX3 NCs. Here, we present a method that allows partial cation exchange in colloidal CsPbBr3 NCs, whereby Pb2+ is exchanged for several isovalent cations, resulting in doped CsPb1–xMxBr3 NCs (M= Sn2+, Cd2+, and Zn2+; 0 < x ≤ 0.1), with preservation of the original NC shape. The size of the parent NCs is also preserved in the product NCs, apart from a small (few %) contraction of the unit cells upon incorporation of the guest cations. The partial Pb2+ for M2+ exchange leads to a blue-shift of the optical spectra, while maintaining the high photoluminescence quantum yields (>50%), sharp absorption features, and narrow emission of the parent CsPbBr3 NCs. The blue-shift in the optical spectra is attributed to the lattice contraction that accompanies the Pb2+ for M2+ cation exchange and is observed to scale linearly with the lattice contraction. This work opens up new possibilities to engineer the properties of halide perovskite NCs, which to date are demonstrated to be the only known system where cation and anion exchange reactions can be sequentially combined while preserving the original NC shape, resulting in compositionally diverse perovskite NCs.
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Ionic transport in hybrid lead iodide perovskite solar cells
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Quantum dot–induced phase stabilization of α-CsPbI 3 perovskite for high-efficiency photovoltaics
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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
Wei, Y., Cheng, Z., & Lin, J. (2019) · Chemical Society Reviews · doi:10.1039/c8cs00740c · Cited by 1,206
Doping Lanthanide into Perovskite Nanocrystals: Highly Improved and Expanded Optical Properties
Pan, G., Bai, X., Yang, D., Chen, X., Jing, P., Qu, S., Zhang, L., Zhou, D., Zhu, J., Xu, W., et al. (2017) · Nano Letters · doi:10.1021/acs.nanolett.7b04575 · Cited by 935
Metal-Doped Lead Halide Perovskites: Synthesis, Properties, and Optoelectronic Applications
Zhou, Y., Chen, J., Bakr, O. M., & Sun, H.-T. (2018) · Chemistry of Materials · doi:10.1021/acs.chemmater.8b02989 · Cited by 650
Dong, Y., Qiao, T., Kim, D., Parobek, D., Rossi, D., & Son, D. H. (2018) · Nano Letters · doi:10.1021/acs.nanolett.8b00861 · Cited by 580
Metadata
- Authors
- van der Stam, W., Geuchies, J. J., Altantzis, T., van den Bos, K. H. W., Meeldijk, J. D., Van Aert, S., Bals, S., Vanmaekelbergh, D., & de Mello Donega, C.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2017-03-10
- Volume
- 139
- Issue
- 11
- Pages
- 4087-4097
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2593574896
- Cited by
- 732
- References
- 50
- FWCI
- 35.69
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- van der Stam, W., Geuchies, J. J., Altantzis, T., van den Bos, K. H. W., Meeldijk, J. D., Van Aert, S., Bals, S., Vanmaekelbergh, D., & de Mello Donega, C. (2017). Highly Emissive Divalent-Ion-Doped Colloidal CsPb1–xMxBr3 Perovskite Nanocrystals through Cation Exchange. Journal of the American Chemical Society. https://doi.org/10.1021/jacs.6b13079
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