Thermoelectric films
(Bi2Te3, Bi2Sb3,BiSbTe)
Product Outline
High performance thermoelectric films are realized for thermoelectric power generation elements *1 and Peltier elements *2 by using electrodeposition technology. Electrodeposition enables the deposition of thick films and patterning of the materials using resist as a mold.
*1 Thermoelectric power generation elements generate electricity when a temperature difference is applied to them. They can be used for thermal power generation.
*2 Peltier elements generate a temperature difference when an electric current is applied to them and are used for electronic cooling.
Performances
1. Bi2Sb3film (n-type thermoelectric material)
Thickness: 100 nm~ 1mm
Seebeck coefficient: ~ -145 µV/K
Electrical conductivity: ~ 750 S/cm
Thermal conductivity: ~ 0.8 W/mK
2. Bi-Sb-Te film (p-type thermoelectric material)
Thickness: 100 nm~ 0.5 mm
Seebeck coefficient: ~ 250 µV/K
Electrical conductivity: ~ 10000 S/cm
Bi:Sb:Te ratio ~ 0.12:0.28:0.6