[24a-E205-1~11] 9.4 Thermoelectric conversion

[24a-E205-11] Measurement of the absolute Seebeck coefficient and thermal conductivity using the Thomson effect

〇Yasutaka Amagai¹, Takeshi Shimazaki¹, Kenjiro Okawa¹, Tatsuya Kawae², Hiroyuki Fujiki¹, Nobu-Hisa Kaneko¹ (1.AIST, 2.Kyusyu Univ.)

Keywords:Thermoelectric effect, Thermoelectric material, Material characterization

Thermoelectric properties are usually determined as a function of temperature through independent measurements of the electrical resistivity, thermal conductivity, and Seebeck coefficient, making thermoelectric characterization time intensive in part. For this reason, an ac-Harman method and ac impedance spectroscopy method using the peltier effect have been developing so far. Here we present a simple method that is able to meausre the absolute Seebeck coefficient and thermal conductivity from electrical measurements performed on one instrument by using the Thomson effect.