Abstract: he electrodeposition process of p-type Bi₂Te₃ thermoelectric materials in the solution containing
Bi⁺³ and HTeO₂⁺¹ was investigated. During the electrodeposition prosess, Bi⁺³ can promote the reduction of HTeO₂⁺¹. The addition
of glycerin in the electrodepositing solution can decrease the solving rate of alumina templates in the solution, but glycerin also decreases the
electrodeposition rate remarkably. The p-type Bi₂Te₃ thermoelectric materials with nanowire array structure were electrochemically assembled
into the nano-pores of the alumina template. The performance measurements show that the Seebeck coefficient α of the nanowire array is much
higher than that of the bulk thermoelectric materials with the same composition.

Key words: p-type thermoelectric material, Bi₂Te₃, electrochemical assembling, nanowire array