The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
All-scale hierarchical thermoelectrics: MgTe in PbTe facilitates valence band convergence and suppresses bipolar thermal transport for high performance
Abstract
We report a high ZT of ∼2.0 at 823 K for 2% Na-doped PbTe with 6% MgTe with excellent thermal stability. We attribute the high thermoelectric performance to a synergistic combination of enhanced power factor, reduction of the lattice thermal conductivity and simultaneous suppression of bipolar thermal conductivity. MgTe inclusion in PbTe owns triple functions: the Mg alloying within the solubility limit in PbTe modifies the valence band structure by pushing the two valence bands (L and Σ bands) closer in energy, thereby facilitating charge carrier injection. When the solubility limit of Mg is exceeded, ubiquitous endotaxial nanostructures form, which when coupled with mesoscale microstructuring results in a very low (lattice) thermal conductivity through all-scaled length phonon scattering. Meanwhile, most significantly, the Mg alloying enlarges the energy gap of conduction band (C band) and light valence band (L band), thereby suppresses the bipolar thermal conductivity through an increase in band gap.
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Cites
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Perdew, J. P., Burke, K., & Ernzerhof, M. (1996) · Physical Review Letters · doi:10.1103/physrevlett.77.3865 · Cited by 215,824
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set
Kresse, G., & Furthmüller, J. (1996) · Physical Review B · doi:10.1103/physrevb.54.11169 · Cited by 123,652
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Blöchl, P. E. (1994) · Physical Review B · doi:10.1103/physrevb.50.17953 · Cited by 92,732
Cited by
Rationally Designing High-Performance Bulk Thermoelectric Materials
Tan, G., Zhao, L.-D., & Kanatzidis, M. G. (2016) · Chemical Reviews · doi:10.1021/acs.chemrev.6b00255 · Cited by 2,355
Self-citationAnharmoncity and low thermal conductivity in thermoelectrics
Chang, C., & Zhao, L.-D. (2018) · Materials Today Physics · doi:10.1016/j.mtphys.2018.02.005 · Cited by 359
Self-citationRevisiting lattice thermal transport in PbTe: The crucial role of quartic anharmonicity
Xia, Y. (2018) · Applied Physics Letters · doi:10.1063/1.5040887 · Cited by 155
Su, H., Lei, S., Chen, Y., Lv, Y., & Zhang, Q. (2025) · ACS Applied Materials & Interfaces · doi:10.1021/acsami.5c16158 · Cited by 4
Metadata
- Authors
- Zhao, L. D., Wu, H. J., Hao, S. Q., Wu, C. I., Zhou, X. Y., Biswas, K., He, J. Q., Hogan, T. P., Uher, C., Wolverton, C., Dravid, V. P., & Kanatzidis, M. G.
- Venue
- Energy & Environmental Science
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2013
- Volume
- 6
- Issue
- 11
- Pages
- 3346
- ISSN
- 1754-5692 (ISSN-L)
- 1754-5706
- OpenAlex
- W2071509666
- Cited by
- 767
- References
- 3
- FWCI
- 19.54
- Type
- journal article
- Language
- en
- Open access
- closed
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- The paper
- Zhao, L. D., Wu, H. J., Hao, S. Q., Wu, C. I., Zhou, X. Y., Biswas, K., He, J. Q., Hogan, T. P., Uher, C., Wolverton, C., Dravid, V. P., & Kanatzidis, M. G. (2013). All-scale hierarchical thermoelectrics: MgTe in PbTe facilitates valence band convergence and suppresses bipolar thermal transport for high performance. Energy & Environmental Science. https://doi.org/10.1039/c3ee42187b
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