The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
Hot carrier cooling mechanisms in halide perovskites
Open accessAbstract
Halide perovskites exhibit unique slow hot-carrier cooling properties capable of unlocking disruptive perovskite photon–electron conversion technologies (e.g., high-efficiency hot-carrier photovoltaics, photo-catalysis, and photodetectors). Presently, the origins and mechanisms of this retardation remain highly contentious (e.g., large polarons, hot-phonon bottleneck, acoustical–optical phonon upconversion etc.). Here, we investigate the fluence-dependent hot-carrier dynamics in methylammonium lead triiodide using transient absorption spectroscopy, and correlate with theoretical modeling and first-principles calculations. At moderate carrier concentrations (around 10 18 cm−3), carrier cooling is mediated by polar Fröhlich electron–phonon interactions through zone-center delayed longitudinal optical phonon emissions (i.e., with phonon lifetime τLO around 0.6 ± 0.1 ps) induced by the hot-phonon bottleneck. The hot-phonon effect arises from the suppression of the Klemens relaxation pathway essential for longitudinal optical phonon decay. At high carrier concentrations (around 10 19 cm−3), Auger heating further reduces the cooling rates. Our study unravels the intricate interplay between the hot-phonon bottleneck and Auger heating effects on carrier cooling, which will resolve the existing controversy.
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Cites
Lead halide perovskite nanowire lasers with low lasing thresholds and high quality factors
Zhu, H., Fu, Y., Meng, F., Wu, X., Gong, Z., Ding, Q., Gustafsson, M. V., Trinh, M. T., Jin, S., & Zhu, X.-Y. (2015) · Nature Materials · doi:10.1038/nmat4271 · Cited by 2,836
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
Triple-halide wide–band gap perovskites with suppressed phase segregation for efficient tandems
Xu, J., Boyd, C. C., Yu, Z. J., Palmstrom, A. F., Witter, D. J., Larson, B. W., France, R. M., Werner, J., Harvey, S. P., Wolf, E. J., et al. (2020) · Science · doi:10.1126/science.aaz5074 · Cited by 1,080
Zheng, Q., Chu, W., Zhao, C., Zhang, L., Guo, H., Wang, Y., Jiang, X., & Zhao, J. (2019) · WIREs Computational Molecular Science · doi:10.1002/wcms.1411 · Cited by 452
From Ultrafast to Ultraslow: Charge-Carrier Dynamics of Perovskite Solar Cells
Shi, J., Li, Y., Li, Y., Li, D., Luo, Y., Wu, H., & Meng, Q. (2018) · Joule · doi:10.1016/j.joule.2018.04.010 · Cited by 341
Myung, C. W., Hajibabaei, A., Cha, J., Ha, M., Kim, J., & Kim, K. S. (2022) · Advanced Energy Materials · doi:10.1002/aenm.202202279 · Cited by 54
Metadata
- Authors
- Fu, J., Xu, Q., Han, G., Wu, B., Huan, C. H. A., Leek, M. L., & Sum, T. C.
- Venue
- Nature Communications
- Published
- 2017-11-03
- Volume
- 8
- Issue
- 1
- Pages
- 1300-1300
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2766644147
- Cited by
- 540
- References
- 2
- FWCI
- 18.12
- Type
- journal article
- Language
- en
- Open access
- gold
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- Fu, J., Xu, Q., Han, G., Wu, B., Huan, C. H. A., Leek, M. L., & Sum, T. C. (2017). Hot carrier cooling mechanisms in halide perovskites. Nature Communications. https://doi.org/10.1038/s41467-017-01360-3
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