The DOI matches its Crossref record; 54 of the 54 references it cites were found in a registry or an index.
All-Inorganic Halide Perovskites as Potential Thermoelectric Materials: Dynamic Cation off-Centering Induces Ultralow Thermal Conductivity
Abstract
Halide perovskites are anticipated to impact next generation high performance solar cells because of their extraordinary charge transport and optoelectronic properties. However, their thermal transport behavior has received limited attention. In this work, we studied the thermal transport and thermoelectric properties of the CsSnBr 3-x I x perovskites. We find a strong correlation between lattice dynamics and an ultralow thermal conductivity for series CsSnBr 3-x I x reaching 0.32 Wm –1 K –1 at 550 K. The CsSnBr 3-x I x also possess a decent Seebeck coefficient and controllable electrical transport properties. The crystallography data and theoretical calculations suggest the Cs atom deviates from its ideal cuboctahedral geometry imposed by the perovskite cage and behaves as a heavy atom rattling oscillator. This off-center tendency of Cs, together with the distortion of SnX 6 (X = Br or I) octahedra, produces a highly dynamic and disordered structure in CsSnBr 3-x I x, which gives rise to a very low Debye temperature and phonon velocity. Moreover, the low temperature heat capacity data suggests strong coupling between the low frequency optical phonons and heat carrying acoustical phonons. This induces strong phonon resonance scattering that induces the ultralow lattice thermal conductivity of CsSnBr 3-x I x .
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Cites
Organometal Halide Perovskites as Visible-Light Sensitizers for Photovoltaic Cells
Kojima, A., Teshima, K., Shirai, Y., & Miyasaka, T. (2009) · Journal of the American Chemical Society · doi:10.1021/ja809598r · Cited by 23,090
Complex thermoelectric materials
Snyder, G. J., & Toberer, E. S. (2008) · Nature Materials · doi:10.1038/nmat2090 · Cited by 11,455
Self-citationEfficient Hybrid Solar Cells Based on Meso-Superstructured Organometal Halide Perovskites
Lee, M. M., Teuscher, J., Miyasaka, T., Murakami, T. N., & Snaith, H. J. (2012) · Science · doi:10.1126/science.1228604 · Cited by 10,687
Sequential deposition as a route to high-performance perovskite-sensitized solar cells
Burschka, J., Pellet, N., Moon, S.-J., Humphry-Baker, R., Gao, P., Nazeeruddin, M. K., & Grätzel, M. (2013) · Nature · doi:10.1038/nature12340 · Cited by 9,547
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The emergence of perovskite solar cells
Green, M. A., Ho-Baillie, A., & Snaith, H. J. (2014) · Nature Photonics · doi:10.1038/nphoton.2014.134 · Cited by 7,432
Stoumpos, C. C., Malliakas, C. D., & Kanatzidis, M. G. (2013) · Inorganic Chemistry · doi:10.1021/ic401215x · Cited by 5,416
Self-citationUltralow thermal conductivity and high thermoelectric figure of merit in SnSe crystals
Zhao, L.-D., Lo, S.-H., Zhang, Y., Sun, H., Tan, G., Uher, C., Wolverton, C., Dravid, V. P., & Kanatzidis, M. G. (2014) · Nature · doi:10.1038/nature13184 · Cited by 5,218
Self-citationHigh-performance bulk thermoelectrics with all-scale hierarchical architectures
Biswas, K., He, J., Blum, I. D., Wu, C.-I., Hogan, T. P., Seidman, D. N., Dravid, V. P., & Kanatzidis, M. G. (2012) · Nature · doi:10.1038/nature11439 · Cited by 4,740
Self-citationBright light-emitting diodes based on organometal halide perovskite
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Metadata
- Authors
- Xie, H., Hao, S., Bao, J., Slade, T. J., Snyder, G. J., Wolverton, C., & Kanatzidis, M. G.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2020-04-22
- Volume
- 142
- Issue
- 20
- Pages
- 9553-9563
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W3017252316
- Cited by
- 298
- References
- 54
- FWCI
- 13.42
- Type
- journal article
- Language
- en
- Open access
- closed
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- Xie, H., Hao, S., Bao, J., Slade, T. J., Snyder, G. J., Wolverton, C., & Kanatzidis, M. G. (2020). All-Inorganic Halide Perovskites as Potential Thermoelectric Materials: Dynamic Cation off-Centering Induces Ultralow Thermal Conductivity. Journal of the American Chemical Society. https://doi.org/10.1021/jacs.0c03427
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