Ta4SiTe4 as a High-Performance Thermoelectric Material (IMAGE)

Nagoya University

Ta4SiTe4 as a High-Performance Thermoelectric Material

Caption

Ta4SiTe4 whisker crystals (left lower) show very large thermoelectric power?exceeding -400 μV K-1 at low temperature, while maintaining low electrical resistivity (right upper). This results in that thermoelectric power factor (right lower), an indication of cooling power, becomes a very large value far exceeding those of the practical materials (typically 40 μW cm-1 K-2 for the Bi2Te3-based material). The optimum temperature of the power factor can be widely controlled by molybdenum (Mo) or antimony (Sb) doping.

Credit

Yoshihiko Okamoto

Usage Restrictions

None

License

Licensed content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.