Patent ID: 9336922
Filing Date: 2016-05-10
CPC Classification: B82Y,H01B,H01L

Claim Text:
1. A method of fabricating thermoelectric materials having dispersed nano-particles, comprising: step 1) preparing core-shell structured metal oxide nano-particles having a thermoelectric pure bismuth metal element or a thermoelectric pure tellurium metal element coated on a surface of the metal oxide nano-particles; step 2) adding and mixing the prepared core-shell structured metal oxide nano-particles of step 1, bismuth (Bi) salts, tellurium (Te) salts and a surfactant in a solvent to form a first mixture; step 3) adding and dispersing a reducing agent in the first mixture of step 2 to form a second mixture; step 4) heating the second mixture to form a heated second mixture; and step 5) post-heat treating the heated second mixture at 250 to 350° C. for 1 hour to 5 hours in a hydrogen atmosphere, after the heating of step 4.