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research article
Harnessing Topological Band Effects in Bismuth Telluride Selenide for Large Enhancements in Thermoelectric Properties through Isovalent Doping
2016
Dilute isovalent sulfur doping simultaneously increases electrical conductivity and Seebeck coefficient in Bi2Te2Se nanoplates, and bulk pellets made from them. This unusual trend at high electron concentrations is underpinned by multifold increases in electron effective mass attributable to sulfur-induced band topology effects, providing a new way for accessing a high thermoelectric figure-of-merit in topological-insulator-based nanomaterials through doping.
Use this identifier to reference this record
Type
research article
Web of Science ID
WOS:000382480100019
Authors
Devender, xyz
•
Gehring, Pascal
•
Gaul, Andrew
•
Hoyer, Alexander
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Vaklinova, Kristina
•
Mehta, Rutvik J.
•
•
Borca-Tasciuc, Theodorian
•
Singh, David J.
•
Publication date
2016
Publisher
Published in
Volume
28
Issue
30
Start page
6436
End page
6441
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
October 18, 2016