The DOI matches its Crossref record; 31 of the 31 references it cites were found in a registry or an index.
Emissive Bi-Doped Double Perovskite Cs2Ag1–xNaxInCl6 Nanocrystals
Abstract
We report the composition-dependent optical properties of Bi-doped Cs 2 Ag 1– x Na x InCl 6 nanocrystals (NCs) having a double perovskite crystal structure. Their photoluminescence (PL) was characterized by a large Stokes shift, and the PL quantum yield increased with the amount of Na up to ∼22% for the Cs 2 Ag 0.4 Na 0.6 InCl 6 stoichiometry. The presence of Bi 3+ dopants was crucial to achieve high PL quantum yields (PLQYs) as nondoped NC systems were not emissive. Density functional theory calculations revealed that the substitution of Ag + with Na + leads to localization of AgCl 6 energy levels above the valence band maximum, whereas doping with Bi 3+ creates BiCl 6 states below the conduction band minimum. As such, the PL emission stems from trapped emission between states localized in the BiCl 6 and AgCl 6 octahedra, respectively. Our findings indicated that both the partial replacement of Ag + with Na + ions and doping with Bi 3+ cations are essential in order to optimize the PL emission of these systems.
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Generalized Gradient Approximation Made Simple
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Hutter, J., Iannuzzi, M., Schiffmann, F., & VandeVondele, J. (2014) · WIREs Computational Molecular Science · doi:10.1002/wcms.1159 · Cited by 3,008
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
Self-citationEfficient and stable emission of warm-white light from lead-free halide double perovskites
Luo, J., Wang, X., Li, S., Liu, J., Guo, Y., Niu, G., Yao, L., Fu, Y., Gao, L., Dong, Q., et al. (2018) · Nature · doi:10.1038/s41586-018-0691-0 · Cited by 2,247
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Self-citationCs2InAgCl6: A New Lead-Free Halide Double Perovskite with Direct Band Gap
Volonakis, G., Haghighirad, A. A., Milot, R. L., Sio, W. H., Filip, M. R., Wenger, B., Johnston, M. B., Herz, L. M., Snaith, H. J., & Giustino, F. (2017) · The Journal of Physical Chemistry Letters · doi:10.1021/acs.jpclett.6b02682 · Cited by 1,176
Toward Lead-Free Perovskite Solar Cells
Giustino, F., & Snaith, H. J. (2016) · ACS Energy Letters · doi:10.1021/acsenergylett.6b00499 · Cited by 1,141
Present status and future prospects of perovskite photovoltaics
Snaith, H. J. (2018) · Nature Materials · doi:10.1038/s41563-018-0071-z · Cited by 803
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Self-citationMeng, W., Wang, X., Xiao, Z., Wang, J., Mitzi, D. B., & Yan, Y. (2017) · The Journal of Physical Chemistry Letters · doi:10.1021/acs.jpclett.7b01042 · Cited by 672
Metadata
- Authors
- Locardi, F., Sartori, E., Buha, J., Zito, J., Prato, M., Pinchetti, V., Zaffalon, M. L., Ferretti, M., Brovelli, S., Infante, I., De Trizio, L., & Manna, L.
- Venue
- ACS Energy Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2019-07-18
- Volume
- 4
- Issue
- 8
- Pages
- 1976-1982
- ISSN
- 2380-8195 (ISSN-L)
- OpenAlex
- W2963397823
- Cited by
- 268
- References
- 31
- FWCI
- 12.42
- Type
- journal article
- Language
- en
- Open access
- closed
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- Locardi, F., Sartori, E., Buha, J., Zito, J., Prato, M., Pinchetti, V., Zaffalon, M. L., Ferretti, M., Brovelli, S., Infante, I., De Trizio, L., & Manna, L. (2019). Emissive Bi-Doped Double Perovskite Cs2Ag1–xNaxInCl6 Nanocrystals. ACS Energy Letters. https://doi.org/10.1021/acsenergylett.9b01274
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