Huge thermopower of porous Y2O3

被引：29

作者：

Koumoto, K

Seo, WS

Ozawa, S

机构：

[1] Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-01, Furo-cho

来源：

APPLIED PHYSICS LETTERS | 1997年 / 71卷 / 11期

关键词：

D O I：

10.1063/1.119941

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Porous Y2O3 ceramic was found to show huge thermopower Values up to -50 mV/K at 900-1000 K in vacuum, but not in air. Such huge thermopowers may be generated by the electron gas emitted from the internal surfaces of the pores and are associated with some unknown effects. The nondimensional thermoelectric figure of merit, ZT, of this porous ceramic was as large as similar to 0.95 at similar to 950 K, and hence, it can be used as a thermoelectric material. (C) 1997 American Institute of Physics.

引用

页码：1475 / 1476

页数：2

共 11 条

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