METHOD OF DEVELOPMENT FOR THE ENHANCEMENT OF THERMOELECTRIC EFFICIENCY OF THERMOELECTRIC MATERIAL THROUGH ANNEALING PROCESS

摘要

Provided is a thermoelectric nanowire and a method for improving thermoelectric efficiency thereof using heat treatment. Particularly, the method for improving thermoelectric efficiency of the thermoelectric nanowire includes a first process of synthesizing a nanowire of bismuth telluride (Bi2Te3) in a porous support; and a second process of receiving the nanowire of the bismuth telluride (Bi2Te3) in a sealing boat separated from an atmosphere and including inert gas to perform heat treatment while a tellurium powder fills the sealing boat. According to the present invention, heat treatment is performed using a sealing boat that is completely sealed in order to avoid a loss due to evaporation of a tellurium component by an increase in heat treatment temperature to improve crystallinity of a material including bismuth telluride, thus increasing thermoelectric efficiency.