Origins of promising thermoelectric performance in quaternary selenide BaAg2SnSe4
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F19%3A10409810" target="_blank" >RIV/00216208:11310/19:10409810 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=CGXS5dWd0D" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=CGXS5dWd0D</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.7567/1882-0786/ab29e1" target="_blank" >10.7567/1882-0786/ab29e1</a>
Alternative languages
Result language
angličtina
Original language name
Origins of promising thermoelectric performance in quaternary selenide BaAg2SnSe4
Original language description
Motivated by the recent discovery of low thermal conductivity in 1-2-1-4 quaternary selenides, we studied the origins of promising thermoeletric performance of BaAg2SnSe4 using ab initio calculations. We have shown that BaAg2SnSe4 is a model material of valley degeneracy, either conduction valleys or valence valleys are highly degenerate, yielding promising electronic transport performance. Meanwhile, the extremely low thermal conductivity arises primarily from lattice contribution. Due to both advantages of electronic and phonon transport properties, the calculated thermoelectric figure of merit ZT exceeds 1 at room temperature. Our results highlight the advantages of quaternary BaAg2SnSe4 as a promising bulk thermoelectric material.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)
Result continuities
Project
—
Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Applied Physics Express
ISSN
1882-0778
e-ISSN
—
Volume of the periodical
12
Issue of the periodical within the volume
7
Country of publishing house
GB - UNITED KINGDOM
Number of pages
4
Pages from-to
071006
UT code for WoS article
000473125700002
EID of the result in the Scopus database
2-s2.0-85073659881