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Colloidal Synthesis and Charge‐Carrier Dynamics of Cs2AgSb1−yBiyX6 (X: Br, Cl; 0 ≤y ≤1) Double Perovskite Nanocrystals
Abstract
A series of lead‐free double perovskite nanocrystals (NCs) Cs 2 AgSb 1−yBiyX 6 (X: Br, Cl; 0≤y≤1) is synthesized. In particular, the Cs 2 AgSbBr 6 NCs is a new double perovskite material that has not been reported for the bulk form. Mixed Ag–Sb/Bi NCs exhibit enhanced stability in colloidal solution compared to Ag–Bi or Ag–Sb NCs. Femtosecond transient absorption studies indicate the presence of two prominent fast trapping processes in the charge‐carrier relaxation. The two fast trapping processes are dominated by intrinsic self‐trapping (ca. 1–2 ps) arising from giant exciton–phonon coupling and surface‐defect trapping (ca. 50–100 ps). Slow hot‐carrier relaxation is observed at high pump fluence, and the possible mechanisms for the slow hot‐carrier relaxation are also discussed.
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Shannon, R. D. (1976) · Acta Crystallographica Section A · doi:10.1107/s0567739476001551 · Cited by 66,145
Price, M. B., Butkus, J., Jellicoe, T. C., Sadhanala, A., Briane, A., Halpert, J. E., Broch, K., Hodgkiss, J. M., Friend, R. H., & Deschler, F. (2015) · Nature Communications · doi:10.1038/ncomms9420 · Cited by 704
Cited by
Rare-earth-containing perovskite nanomaterials: design, synthesis, properties and applications
Zeng, Z., Xu, Y., Zhang, Z., Gao, Z., Luo, M., Yin, Z., Zhang, C., Xu, J., Huang, B., Luo, F., et al. (2020) · Chemical Society Reviews · doi:10.1039/c9cs00330d · Cited by 422
Mn2+‐Doped Metal Halide Perovskites: Structure, Photoluminescence, and Application
Su, B., Zhou, G., Huang, J., Song, E., Nag, A., & Xia, Z. (2021) · Laser & Photonics Reviews · doi:10.1002/lpor.202000334 · Cited by 319
Emissive Bi-Doped Double Perovskite Cs2Ag1–xNaxInCl6 Nanocrystals
Locardi, F., Sartori, E., Buha, J., Zito, J., Prato, M., Pinchetti, V., Zaffalon, M. L., Ferretti, M., Brovelli, S., Infante, I., et al. (2019) · ACS Energy Letters · doi:10.1021/acsenergylett.9b01274 · Cited by 268
Mourdikoudis, S., Menelaou, M., Fiuza-Maneiro, N., Zheng, G., Wei, S., Pérez-Juste, J., Polavarapu, L., & Sofer, Z. (2022) · Nanoscale Horizons · doi:10.1039/d2nh00111j · Cited by 259
Chen, X., Wang, C., Li, Z., Hou, Z., & Yin, W.-J. (2020) · Science China Materials · doi:10.1007/s40843-019-1255-4 · Cited by 47
Metadata
- Authors
- Yang, B., Hong, F., Chen, J., Tang, Y., Yang, L., Sang, Y., Xia, X., Guo, J., He, H., Yang, S., Deng, W., & Han, K.
- Venue
- Angewandte Chemie International Edition
- Publisher
- Wiley
- Published
- 2019-01-25
- Volume
- 58
- Issue
- 8
- Pages
- 2278-2283
- ISSN
- 1433-7851 (ISSN-L)
- 1521-3773
- OpenAlex
- W2905746087
- Cited by
- 245
- References
- 2
- FWCI
- 12.42
- Type
- journal article
- Language
- en
- Open access
- closed
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- The paper
- Yang, B., Hong, F., Chen, J., Tang, Y., Yang, L., Sang, Y., Xia, X., Guo, J., He, H., Yang, S., Deng, W., & Han, K. (2019). Colloidal Synthesis and Charge‐Carrier Dynamics of Cs2AgSb1−yBiyX6 (X: Br, Cl; 0 ≤y ≤1) Double Perovskite Nanocrystals. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.201811610
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