Thermoelectric properties and nonstoichiometry of GaGeTe

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F12%3A39895842" target="_blank" >RIV/00216275:25310/12:39895842 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1063/1.4731548" target="_blank" >http://dx.doi.org/10.1063/1.4731548</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/1.4731548" target="_blank" >10.1063/1.4731548</a>

Result language
angličtina
Original language name
Thermoelectric properties and nonstoichiometry of GaGeTe
Original language description
The polycrystalline samples of composition Ga(1+x)Ge(1-x)Te (x = (?0.03)-0.07) were synthesized from elements of 5N purity using solid state reaction. The products of synthesis were identified by X-ray diffraction. The samples for transport measurementswere prepared using hot-pressing. They were characterized by the measurement of electric conductivity, Hall coefficient and Seebeck coefficient over a temperature range 80-450K and thermal conductivity over a temperature range 300-500 K. The samples showall p-type conductivity and we observe an increase in hole concentration with increasing x (content of Ga). We discuss the influence of Ga/Ge ratio on the phase purity of the samples and free carrier concentration. The investigation of thermoelectric properties shows that ZT parameter of these samples is too low at room temperature but increase distinctly with temperature.
Czech name
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Czech description
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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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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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