[12a-PB5-1~4] 16.2 Energy Harvesting

△ [12a-PB5-2] Bi₂Te₃ nanoplate/CNT composite synthesis using solvothermal method and evaluation of thermoelectric properties

〇(M1)Hayato Yabuki¹, Takashiri Masayuki¹ (1.Tokai Univ.)

Keywords:thermoelectric material, composite material, carbon-based material

The purpose of this study is to fabricate materials with higher thermoelectric performance than Bi₂Te₃ nanoplates by combining Bi₂Te₃ nanoplates and single walled carbon nanotubes by solvothermal method. A solvothermal method was used for the synthesis, and the nanoplate material and SWCNT were heat treated to produce a composite material of Bi₂Te₃ nanoplate and CNT. A thin film was prepared from the composite powder by a drop casting method. Then, the thermoelectric performance and the structural analysis of the thin film heat treated by the thermal annealing method were performed. As a result, Bi₂Te₃ nanoplate/CNT composite was confirmed, and improvement in thermoelectric performance was observed with an increase in the amount of CNT added.