Figure of Merit of quaternary (Sb0,75Bi0,25)2-xInxTe3 single crystals

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F08%3A00007765" target="_blank" >RIV/00216275:25310/08:00007765 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Figure of Merit of quaternary (Sb0,75Bi0,25)2-xInxTe3 single crystals

Original language description

Single crystals of a quaternary system based on (Sb0,75Bi0,25)2Te3 doped with In were prepared using the Bridgman technique. Samples with varying content of In were characterized by the measurements of electrical conductivity c, Hall coefficient RH(B||c), Seebeck coefficient S(Tc) and thermal conductivity (Tc). The measurements indicate that by incorporating In in (Sb0,75Bi0,25)2Te3 one lowers the concentration of free holes. This effect is explained in terms of a point defect model in the crystal lattice. We also discuss the temperature dependence of the thermoelectric figure of merit Z=S2/ of the samples. It is observed that low concentrations of In atoms in the (Sb0,75Bi0,25)2Te3 crystal lattice result in a substantial increase in the parameter Z inthe temperature region 100K - 300K.

Czech name

Figure of Merit kvaternárních monokrystalů (Sb0,75Bi0,25)2-xInxTe3

Czech description

Monokrystaly (Sb0,75Bi0,25)2-xInxTe3 byly připraveny Bridgmanovou metodou. Byly měřeny transportní a termoelektrické vlastnosti. Byl zjištěn významný vzrůst parametru Z.

Type

J_x - 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

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2008

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Applied Physics

ISSN

0021-8979

e-ISSN

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Volume of the periodical

104

Issue of the periodical within the volume

104

Country of publishing house

US - UNITED STATES

Number of pages

4

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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