Huge thermopower of porous Y2O3
Year: 1997
Type: article
Abstract: 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 ∼0.95 at ∼950 K, and hence, it can be used as a thermoelectric material.
Source: Applied Physics Letters
DOI: 10.1063/1.119941
Authors: K. Koumoto, W. S. Seo, S. Ozawa
Institution: Nagoya University
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W1640768076