Patent ID: 9444025
Filing Date: 2016-09-13
CPC Classification: C01B,C01P,H01L

Claim Text:
1. A method of manufacturing a Pb-Te based thermoelectric material, the method comprising: forming a Pb—Te based mixture by mixing element lead, element tellurium and a dopant; performing a soaking process to the mixture; melting and then quenching the mixture; obtaining an ingot after the quenching; and obtaining a thermoelectric sintered body by pulverizing the ingot in the form of a powder and hot-pressing the pulverized powder in a middle temperature range from about 700 K to about 800 K, wherein the soaking process comprises heat treatment, the heat treatment being performed at about 1023 K to about 1123 K for about 1.5 hours to about 2.5 hours, such that the dopant is reacted with at least one of the element lead or the element tellurium, wherein the hot-pressing is performed after the quenching without an annealing process between the quenching and the hot-pressing, and wherein the dopant is at least one of sodium (Na), potassium (K), and silver (Ag).