|Title||Detection of Thermal Radiation, Sensing of Heat Flux, and Recovery of Waste Heat by the Transverse Thermoelectric Effects|
|Publication Type||Journal Article|
|Year of Publication||2013|
|Authors||Kanno T, Takahashi K, Sakai A, Tamaki H, Kusada H, Yamada Y|
|Journal Title||Journal of Electronic Materials|
|Keywords||layered cobaltite, thermal radiation detector, thermoelectric generation, Transverse thermoelectric effect, tubular thermoelectric generator|
The transverse thermoelectric effect is unique in that an output voltage can be extracted in the direction perpendicular to the input temperature gradient. This paper describes how this transverse feature can be exploited to realize simple and promising configurations of thermoelectric devices. For detection of thermal radiation, two-dimensional imaging has been demonstrated by a fabricated sensor array of tilt-oriented Ca x CoO2 epitaxial thin film. We have also developed a serpentine heat flux sensor made of multilayered Bi/Cu, and Bi0.5Sb1.5Te3/Ni tubular thermoelectric devices for power generation. The fabrication processes and test results are presented.