The DOI matches its Crossref record; 46 of the 46 references it cites were found in a registry or an index.
High figure-of-merit and power generation in high-entropy GeTe-based thermoelectrics
Abstract
The high-entropy concept provides extended, optimized space of a composition, resulting in unusual transport phenomena and excellent thermoelectric performance. By tuning electron and phonon localization, we enhanced the figure-of-merit value to 2.7 at 750 kelvin in germanium telluride–based high-entropy materials and realized a high experimental conversion efficiency of 13.3% at a temperature difference of 506 kelvin with the fabricated segmented module. By increasing the entropy, the increased crystal symmetry delocalized the distribution of electrons in the distorted rhombohedral structure, resulting in band convergence and improved electrical properties. By contrast, the localized phonons from the entropy-induced disorder dampened the propagation of transverse phonons, which was the origin of the increased anharmonicity and largely depressed lattice thermal conductivity. We provide a paradigm for tuning electron and phonon localization by entropy manipulation, but we have also demonstrated a route for improving the performance of high-entropy thermoelectric materials.
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Self-citationAdvanced Thermoelectric Design: From Materials and Structures to Devices
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Clarifying the four core effects of high-entropy materials
Hsu, W.-L., Tsai, C.-W., Yeh, A.-C., & Yeh, J.-W. (2024) · Nature Reviews Chemistry · doi:10.1038/s41570-024-00602-5 · Cited by 928
Metadata
- Authors
- Jiang, B., Wang, W., Liu, S., Wang, Y., Wang, C., Chen, Y., Xie, L., Huang, M., & He, J.
- Venue
- Science
- Published
- 2022-07-08
- Volume
- 377
- Issue
- 6602
- Pages
- 208-213
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W4284692924
- Cited by
- 729
- References
- 46
- FWCI
- 40.39
- Type
- journal article
- Language
- en
- Open access
- closed
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- Jiang, B., Wang, W., Liu, S., Wang, Y., Wang, C., Chen, Y., Xie, L., Huang, M., & He, J. (2022). High figure-of-merit and power generation in high-entropy GeTe-based thermoelectrics. Science. https://doi.org/10.1126/science.abq5815
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