| abstract |
PROBLEM TO BE SOLVED: To provide a thermoelectric material having a low thermal conductivity κ and a high thermoelectric figure of merit Z and a manufacturing method thereof. SOLUTION: At least one element selected from the group consisting of Bi and Sb and at least one element selected from the group consisting of Te and Se, having a diameter of 500 nm or less, and a length Nanowires having a length of 1 μm or more are aligned in the long axis direction and placed in a mold, heated to 300 to 550 ° C. in an inert gas atmosphere, and moved in the long axis direction of the nanowire. A thermoelectric material is obtained by pressing in a vertical direction and solidifying and molding. [Selection] Figure 1 |