{"title":"Relation between zn content and thermoelectric properties of zn4+xsb3 (-0.12⩽x⩽0.12)","authors":"T. Souma, M. Ohtaki","doi":"10.1109/ICT.2006.331384","DOIUrl":null,"url":null,"abstract":"A series of seven bulk crystals of Zn<sub>4+x</sub>Sb<sub>3</sub> (-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<sub>3.96 </sub>Sb<sub>3</sub> (x = -0.04) contain the maximum mass fraction of Zn <sub>4</sub>Sb<sub>3</sub>. 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<sub>4+x</sub>Sb<sub>3</sub> 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.","PeriodicalId":346555,"journal":{"name":"2006 25th International Conference on Thermoelectrics","volume":"25 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2006-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2006 25th International Conference on Thermoelectrics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICT.2006.331384","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
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 Zn3.96 Sb3 (x = -0.04) contain the maximum mass fraction of Zn 4Sb3. 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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