reaction mixture by centrifugation washed several times with distilled water and dried approximately 100 mg of the dry bi 40 te 54 se 6 nanoparticles was mixed with 2 ml of methanol ethanol isopropanol or some other suitable solvent and homogenized in a sealed vessel by means of ultrasound then 0 1 ml of dodecanethiol was added to the mixture of nanoparticles and organic solvent to form the monomolecular layer of stabilizing molecules on the particle surface the colloidal solution of bi 40 te 54 se 6 was conducted through a 0 45 u03bcm membrane filter to remove the aggregated nanoparticles then the colloidal solution was loaded into the inkjet cartridge and the thermoelectric elements were printed out onto polyimide film and dried at room temperature under a vent hood the dried layers or elements containing bi 40 te 54 se 6 nanoparticles were thermally sintered by rolling at 200 250 u00b0 c for 1 60 minutes the monomolecular layer of dodecanethiol is thermally removed from the surface of the nanoparticles to allow the sintering and recrystallization of the particles and to produce electrical conductivity between the adjacent nanoparticles and across the entire sintered layer p type thermoelectric layers or elements of bi 10 sb 30 te 60 nanoparticles which were synthesized.