Influence of Ni impurities on the thermoelectric properties of Ca-partially filled skutterudites CaxCo4Sb12.
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F12%3A00389332" target="_blank" >RIV/68378271:_____/12:00389332 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1063/1.4768439" target="_blank" >http://dx.doi.org/10.1063/1.4768439</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/1.4768439" target="_blank" >10.1063/1.4768439</a>
Alternative languages
Result language
angličtina
Original language name
Influence of Ni impurities on the thermoelectric properties of Ca-partially filled skutterudites CaxCo4Sb12.
Original language description
Polycrystalline samples of the skutterudite compounds CaxCo4Sb12 were synthesized and investigated by means of electrical resistivity, thermal conductivity, and thermopower in the 300?800K temperature range. Additional Hall effect measurements were performed between 2 and 300 K. Both Ni-free and Ni-containing Co powders were used as starting materials to elucidate the impact of Ni impurities at the ppm level on the thermoelectric properties. The presence of minute amounts of Ni atoms in the crystal structure leads to enhanced thermopower values with respect to the Ni-free samples, likely associated with the development of additional electron pockets near the Fermi level.Ni impurities, thus, play a significant role on the transport properties and lead to a spectacular increase in the dimensionless thermoelectric figure of merit ZT of up to 150% at 800 K.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2012
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 Letters
ISSN
0003-6951
e-ISSN
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Volume of the periodical
101
Issue of the periodical within the volume
22
Country of publishing house
US - UNITED STATES
Number of pages
4
Pages from-to
"222105-1"-"222105-4"
UT code for WoS article
000311967000040
EID of the result in the Scopus database
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