Crystal Structure and Thermoelectric Properties of ReSi1.75 Based Alloys

S. Harada; Katsushi Tanaka; Kyosuke Kishida; Haruyuki Inui

doi:10.4028/www.scientific.net/AMR.26-28.197

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 26-28Crystal Structure and Thermoelectric Properties of...

Crystal Structure and Thermoelectric Properties of ReSi_1.75 Based Alloys

Abstract:

Effect of the ternary element of Mo on the crystal structure and thermoelectric properties of ReSi1.75 has been investigated. The crystal structure of Mo-containing ReSi1.75 has shear structure up to 1.5 at%, the structure changes into adaptive structure at larger Mo contents. The concentration of Si vacancies estimated from the crystal structures determined decreases with increasing Mo content. Thermoelectric properties of Mo-containing ReSi1.75 indicate that the character changes from p- to n-type semiconductor upon alloying with Mo, which is explained by the decrease in Si vacancy concentration.

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Periodical:

Advanced Materials Research (Volumes 26-28)

Pages:

197-200

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.26-28.197

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Online since:

October 2007

Authors:

S. Harada, Katsushi Tanaka, Kyosuke Kishida, Haruyuki Inui

Keywords:

Crystal Structure, Ordered Vacancy, Silicide, TEM, Thermoelectric Material

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