Preparation and thermoelectric properties of la-doped SrTiO 3 ceramics

Peng Peng Shang, Bo Ping Zhang, Yong Liu, Jing Feng Li, Hong Min Zhu

研究成果: Article査読

49 被引用数 (Scopus)

抄録

Single-phase polycrystalline La x Sr 1-x TiO 3 (x = 0, 0.04, 0.06, 0.08, and 0.12) ceramics were prepared by the conventional solid-state reaction method using high-activity hydroxides as the raw materials. The electrical conductivity of all the samples increased with increasing x value and decreased with measurement temperature, while the thermal conductivity decreased with increasing x value and measurement temperature. The La 0.12Sr 0.88TiO 3 sample showed the lowest thermal conductivity of 2.45 W m -1 K -1 at 873 K and the largest ZT of 0.28 at 773 K. The present work revealed that hydroxides with high activity as raw materials are beneficial to improve the thermoelectric properties, especially to decrease the thermal conductivity.

本文言語English
ページ(範囲)926-931
ページ数6
ジャーナルJournal of Electronic Materials
40
5
DOI
出版ステータスPublished - 2011 5月
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 電子工学および電気工学
  • 材料化学

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