Presentation Information
[17a-PA1-28]Evaluation of transverse thermoelectric efficiency in WSi2
〇Nanami Hike1, Shoya Ohsumi1, Shogo Yoshida1, Ryuji Okazaki1, Yoshiki Sato2 (1.Tokyo Univ. of Sci., 2.Saitama Univ.)
Keywords:
Transverse thermoelectric
Transverse thermoelectric conversion is a technique that directly converts a heat flow into an electromotive force generated perpendicular to the temperature gradient. This feature allows thermoelectric modules to be constructed with fewer junctions, reducing efficiency losses in energy conversion. In this study, we developed a method to determine the conversion efficiency of transverse thermoelectric materials by measuring the heat input and output electrical power. For WSi2 single crystals, which are materials with axis-dependent conduction polarity, a temperature gradient was applied along a direction tilted from the crystallographic axes, and the resulting transverse current and voltage were measured to determine the conversion efficiency.