Thermoelectrics with a twist
Abstract
Thermoelectrics convert heat into electricity by enabling electron flow across a temperature gradient, but internal electrical resistance from Joule heating is a key limiting factor to conversion efficiency. In the pursuit of material platforms for the next generation of thermoelectrics, topological materials with high electron mobility, including topological insulators and topological semimetals, have attracted substantial attention. Topological insulators support protected current-carrying electron states that are robust to perturbations, reducing electrical resistance.
- Authors:
-
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Publication Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1572368
- Report Number(s):
- BNL-212241-2019-JAAM
Journal ID: ISSN 1476-1122
- Grant/Contract Number:
- SC0012704
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nature Materials
- Additional Journal Information:
- Journal Volume: 18; Journal Issue: 12; Journal ID: ISSN 1476-1122
- Publisher:
- Springer Nature - Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Li, Qiang. Thermoelectrics with a twist. United States: N. p., 2019.
Web. doi:10.1038/s41563-019-0523-0.
Li, Qiang. Thermoelectrics with a twist. United States. https://doi.org/10.1038/s41563-019-0523-0
Li, Qiang. Mon .
"Thermoelectrics with a twist". United States. https://doi.org/10.1038/s41563-019-0523-0. https://www.osti.gov/servlets/purl/1572368.
@article{osti_1572368,
title = {Thermoelectrics with a twist},
author = {Li, Qiang},
abstractNote = {Thermoelectrics convert heat into electricity by enabling electron flow across a temperature gradient, but internal electrical resistance from Joule heating is a key limiting factor to conversion efficiency. In the pursuit of material platforms for the next generation of thermoelectrics, topological materials with high electron mobility, including topological insulators and topological semimetals, have attracted substantial attention. Topological insulators support protected current-carrying electron states that are robust to perturbations, reducing electrical resistance.},
doi = {10.1038/s41563-019-0523-0},
journal = {Nature Materials},
number = 12,
volume = 18,
place = {United States},
year = {Mon Oct 28 00:00:00 EDT 2019},
month = {Mon Oct 28 00:00:00 EDT 2019}
}
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Figures / Tables:
Figure 1: Topological phase transition in Pb(Te, Se) - Sn(Te, Se). The valance band (VB) and conduction band (CB) in non-trivial topological crystal insulators Sn(Te, Se) have surface states (SS) that are inverted from that of trivial band insulators Pb(Te, Se). The band gap, the difference in energy E betweenmore »
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Works referenced in this record:
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Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.