High temperature thermoelectric properties of oxide Ca/sub 9/Co/sub 12/O/sub 28/

In recent years, more and more attention has been put on oxides as thermoelectric materials. In this work, we synthesized the oxide Ca/sub 9/Co/sub 12/O/sub 28/, analyzed its structure, and measured its electrical properties and Seebeck coefficient from room temperature to 700/spl deg/C. Both the electrical conductivity and the Seebeck coefficient increase… (More)