High temperature thermoelectric properties of PbTe prepared by high pressure method

• Autorzy: Fan H. , Su T. , Li H. , Zeng Y. , Li S. , Hu M. , Ma H. , Jia X.

Identyfikatory

DOI

10.1515/msp-2015-0004

• Języki publikacji: EN

Abstrakty

EN

Thermoelectric materials PbTe were synthesized by high pressure method. The microstructure and temperature dependence of thermoelectric properties were studied. Some second phases with nano-structure were found in the high pressure synthesized samples. Compared with that of PbTe prepared at an atmospheric pressure, the samples prepared by high pressure method had smaller grain sizes, lower resistivity and lower phonon thermal conductivity. The maximum figure of merit, Z reached 8.86 × 10₄ K₁ for the sample prepared at 4 GPa. This value was about twice times higher than that of the sample prepared at ambient pressure and it matched to that of highly doped PbTe.

Słowa kluczowe

EN

thermoelectric material; high pressure; PbTe

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2015
• Tom: Vol. 33, No. 1
• Strony: 152--156
• Opis fizyczny: Bibliogr. 15 poz., rys., tab.

Twórcy

autor

Fan H.

• Institute of Materials Science and Engineering, Cultivating Base for Key Laboratory of Environment-friendly Inorganic Materials in University of Henan Province, Henan Polytechnic University, Jiaozuo 454000, China

autor

Su T.

• Institute of Materials Science and Engineering, Cultivating Base for Key Laboratory of Environment-friendly Inorganic Materials in University of Henan Province, Henan Polytechnic University, Jiaozuo 454000, China

autor

Li H.

• Shanghai Entry-Exit Inspection & Quarantine Bureau, Shanghai 200135, China

autor

Zeng Y.

• Department of Physics, Mudanjiang Normal College, Heilongjiang Province Key laboratory of New Carbon-base Functional and Superhard Material, Mudanjiang 157011, China

autor

Li S.

• Institute of Materials Science and Engineering, Cultivating Base for Key Laboratory of Environment-friendly Inorganic Materials in University of Henan Province, Henan Polytechnic University, Jiaozuo 454000, Chin

autor

Hu M.

• Institute of Materials Science and Engineering, Cultivating Base for Key Laboratory of Environment-friendly Inorganic Materials in University of Henan Province, Henan Polytechnic University, Jiaozuo 454000, China

autor

Ma H.

• National Lab of Superhard Materials, Jilin University, Changchun 130012, China

autor

Jia X.

• National Lab of Superhard Materials, Jilin University, Changchun 130012, China

Bibliografia

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