Thermoelectric properties of quaternary BixSbyPbzSe3 single crystals

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Thermoelectric properties of quaternary BixSbyPbzSe3 single crystals

Popis výsledku v původním jazyce

Single crystals of quaternary system based on Bi2Se3 co-doped with Sb and Pb were prepared using the Bridgman technique. Samples with varying content of Pb and Sb were characterized by measurements of the lattice parameters, electrical resistivity, Hallcoefficient, Seebeck coefficient and thermal conductivity. Atomic emission spectroscopy was used to find the concentration profiles of Sb and Pb along the single-crystalline ingots. The measurements indicate that by incorporating Pb and Sb in Bi2Se3 onelowers the concentration of free electrons and changes the character of electrical conductivity from n-type to p-type. This effect is explained in terms of point defects. Further, the evolution of the figure of merit is presented as a function of the impurity content.

Název v anglickém jazyce

Thermoelectric properties of quaternary BixSbyPbzSe3 single crystals

Popis výsledku anglicky

Single crystals of quaternary system based on Bi2Se3 co-doped with Sb and Pb were prepared using the Bridgman technique. Samples with varying content of Pb and Sb were characterized by measurements of the lattice parameters, electrical resistivity, Hallcoefficient, Seebeck coefficient and thermal conductivity. Atomic emission spectroscopy was used to find the concentration profiles of Sb and Pb along the single-crystalline ingots. The measurements indicate that by incorporating Pb and Sb in Bi2Se3 onelowers the concentration of free electrons and changes the character of electrical conductivity from n-type to p-type. This effect is explained in terms of point defects. Further, the evolution of the figure of merit is presented as a function of the impurity content.

Druh

D - Stať ve sborníku

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

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

Název statě ve sborníku

4th Europe Confer. on Thermoelectrics

ISBN

0 9519286 3 5

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

90-93

Název nakladatele

School of Engineering Cardiff University

Místo vydání

Cardiff

Místo konání akce

Cardiff

Datum konání akce

9. 4. 2006

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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