High-Temperature thermoelectric properties in the La2-xR xCuO4 (R: Pr, Y, Nb) ceramics

Yong Liu, Yuan Hua Lin, Bo Ping Zhang, Hong Min Zhu, Ce Wen Nan, Jinle Lan, Jing Feng Li

研究成果: Article査読

22 被引用数 (Scopus)

抄録

La2-xRxCuO4 (R: Pr, Y, Nb) polycrystalline ceramics have been prepared by a spark plasma sintering process. Analysis of the microstructure and phase composition shows that pure La 2CuO4 ceramics with a high density can be obtained, and no impurity phases appear. All the samples exhibit a metal-semiconductor transition behavior at ∼750 K, which could be ascribed to the decreasing charge density as a result of loss of oxygen atoms and various conduction mechanisms in these La2CuO4-based ceramics. Our results indicate that the La1.98Y0.02CuO4 ceramics show large thermoelectric power ∼1.0 × 10-3 μW·(m·K2)-1, and the evaluated ZT can reach 0.17 at 330 K, which potentially make them useful for thermoelectric applications.

本文言語English
ページ(範囲)934-937
ページ数4
ジャーナルJournal of the American Ceramic Society
92
4
DOI
出版ステータスPublished - 2009 4月 1
外部発表はい

ASJC Scopus subject areas

  • セラミックおよび複合材料
  • 材料化学

フィンガープリント

「High-Temperature thermoelectric properties in the La2-xR xCuO4 (R: Pr, Y, Nb) ceramics」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル