Thermoelectric material composites containing nanoparticles, composite manufacturing methods, bulk thermoelectric materials and bulk thermoelectric materials manufacturing method

摘要

The present invention relates to a thermoelectric material composite including nanoparticles, a composite manufacturing method, a bulk thermoelectric material and a bulk thermoelectric material manufacturing method, comprising the steps of preparing nanoparticles including a thermoelectric material powder and a hydrophobic ligand on the surface; ; uniformly dispersing and mixing the thermoelectric material powder and the nanoparticles in an organic solvent; Substituting a hydrophilic ligand for the surface of the nanoparticles including a hydrophobic ligand, the method includes binding the nanoparticles and the thermoelectric material powder through lowering of dispersibility. As a result, the dispersibility of nanoparticles present in a uniformly dispersed state in the organic solvent is lowered, so that the nanoparticles are bonded to the surface of the thermoelectric material powder, through which the nanoparticles and the thermoelectric material powder are easily and uniformly mixed. A material composite or bulk thermoelectric material can be obtained.