Effect of tin content on thermoelectric properties of p-type lead tin telluride

M. Orihashi, Y. Noda, L. D. Chen, T. Goto, T. Hirai

研究成果: Article査読

71 被引用数 (Scopus)

抄録

Pb1-xSnxTe single crystals with various Sn contents (x) were prepared by the Bridgman method. Electrical conductivity (σ), hole concentration (p), Seebeck coefficient (α), and thermal conductivity (κ) were measured in the temperature range of 300-700 K. All samples showed p-type conduction at 300 K. Hole concentration at 300 K changed from 3.1 × 1024 to 5.0 × 1026 m-3 as x changed from 0.0 to 1.0. The α values of all samples showed a maximum at a certain temperature and the temperature at the maximum of α shifted to the high temperature side with increasing Sn content. The lattice thermal conductivity had the minimum at x = 0.5. Figure of merit (Z) reached its maximum at a certain temperature (Topt), and the Topt shifted to the high temperature side with increasing Sn content.

本文言語English
ページ(範囲)919-923
ページ数5
ジャーナルJournal of Physics and Chemistry of Solids
61
6
DOI
出版ステータスPublished - 2000 6

ASJC Scopus subject areas

  • 化学 (全般)
  • 材料科学(全般)
  • 凝縮系物理学

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