| 摘要 |
PROBLEM TO BE SOLVED: To provide a thermoelectric material useful in a temperature range on a low temperature side as compared with conventional Bi-Sb-Te based thermoelectric materials.SOLUTION: In a Bi-Sb-Te based thermoelectric material, thermoelectric performance in a low temperature region below 200°C can be more effectively improved by increasing a composition ratio of Te to more excess than a stoichiometric ratio. Accordingly, a thermoelectric material represented by the following formula (1) is preferable. BiSbTe...(1) (where, 1.5≤x≤1.8 and 3.0<y≤4.0 are satisfied) |
