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Reinvestigation thermoelectric properties of CuAlO2
Author(s)
Kosalwat, Wattana
Jindajitawat, Phumin
Naenkieng, Daengdesh
Boonyopakorn, Narongchai
Harnwunggmoung, Adul
Thowladda, Warawoot
Neeyakorn, Worakarn
Thanachayanont, Chanchana
Charoenphakdee, Anek
Wichainchai, Aree
Date Issued
January 1, 2014
Type
Conference Paper
Abstract
Bulk CuAlO2 delafossite has been synthesized by solid state reaction to reinvestigate the thermoelectric properties. The electrical conductivity, Seebeck coefficient and thermal conductivity were measured in a high temperature range of 300 to 960 K. The result of positive sign of Seebeck coefficient confirms p-type nature of CuAlO2 compund. The results of bulk sample for Seebeck coefficient, the electrical conductivity and thermal conductivity are range of 900 to 300 μV/K, of 0.01 to 2 S/cm, and of 3.5 W/mK to 1.5 W/mK. The maximum ZT value of bulk sample is 0.017 at a 960 K. These results can be concluded that the bulk CuAlO2 by solid state state displays thermoelelctric material.
Citation
Energy Procedia, 56(C), 65-71, 2014