Relation between Zn content and thermoelectric properties of Zn 4+xSb3 (-0.12≤x≤0.12)

Takeshi Souma; Michitaka Ohtaki

doi:10.1109/ICT.2006.331384

Relation between Zn content and thermoelectric properties of Zn _4+xSb₃ (-0.12≤x≤0.12)

Takeshi Souma, Michitaka Ohtaki

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

A series of seven bulk crystals of Zn_4+xSb₃ (-0.12 ≤ x ≤ 0.12) are successfully prepared, and the relation between the Zn content and the thermoelectric properties is investigated. The sample with the nominal composition of Zn_3.96Sb₃ (x = -0.04) contain the maximum mass fraction of Zn₄Sb₃. The shapes of the S(T) and ρ(T) curves are drastically changed with varying x in the temperature range from 300 K to 700 K. Whereas the lower x leads to lower ρ, the magnitude of S unchanges, resulting in the fact that the power factor of the Zn-poor compositions in the Zn_4+xSb₃ system is lower than that of the Zn-rich compositions. The details of the influence of the Zn content and the scope of the improvement of the durability are discussed.

Original language	English
Title of host publication	Proceedings ICT'06 - 25th International Conference on Thermoelectrics
Pages	594-597
Number of pages	4
DOIs	https://doi.org/10.1109/ICT.2006.331384
Publication status	Published - 2006
Event	ICT'06 - 25th International Conference on Thermoelectrics - Vienna, Austria Duration: Aug 6 2006 → Aug 10 2006

Publication series

Name	International Conference on Thermoelectrics, ICT, Proceedings

Other

Other	ICT'06 - 25th International Conference on Thermoelectrics
Country/Territory	Austria
City	Vienna
Period	8/6/06 → 8/10/06

All Science Journal Classification (ASJC) codes

Engineering(all)

Access to Document

10.1109/ICT.2006.331384

Cite this

Relation between Zn content and thermoelectric properties of Zn _4+xSb₃ (-0.12≤x≤0.12). / Souma, Takeshi; Ohtaki, Michitaka.

Proceedings ICT'06 - 25th International Conference on Thermoelectrics. 2006. p. 594-597 4133363 (International Conference on Thermoelectrics, ICT, Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Souma, T & Ohtaki, M 2006, Relation between Zn content and thermoelectric properties of Zn _4+xSb₃ (-0.12≤x≤0.12). in Proceedings ICT'06 - 25th International Conference on Thermoelectrics., 4133363, International Conference on Thermoelectrics, ICT, Proceedings, pp. 594-597, ICT'06 - 25th International Conference on Thermoelectrics, Vienna, Austria, 8/6/06. https://doi.org/10.1109/ICT.2006.331384

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abstract = "A series of seven bulk crystals of Zn4+xSb3 (-0.12 ≤ x ≤ 0.12) are successfully prepared, and the relation between the Zn content and the thermoelectric properties is investigated. The sample with the nominal composition of Zn3.96Sb3 (x = -0.04) contain the maximum mass fraction of Zn4Sb3. The shapes of the S(T) and ρ(T) curves are drastically changed with varying x in the temperature range from 300 K to 700 K. Whereas the lower x leads to lower ρ, the magnitude of S unchanges, resulting in the fact that the power factor of the Zn-poor compositions in the Zn4+xSb3 system is lower than that of the Zn-rich compositions. The details of the influence of the Zn content and the scope of the improvement of the durability are discussed.",

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