METHOD OF INCREASING THE Q-FACTOR OF THE THERMOELECTRIC MATERIAL BASED ON SOLID SOLUTION OF BITE-BISE Russian patent published in 2020 - IPC H01L35/34 

FIELD: technological processes.

SUBSTANCE: invention relates to processing of semiconductor thermoelectric materials and can be used in designing high-efficiency thermoelectric generator batteries and cooling devices. Essence of the invention consists in the fact that increase in the Q-factor and simplification of the thermoelectric material manufacturing technology is achieved by photon treatment of the surface of hot-pressed material in the inert gas medium by packs of pulses of xenon lamp radiation with pulse duration of 10^-2 s during 1.0–1.4 s at energy density of radiation coming to surface of semiconductor in range of 125–175 J⋅cm^-2.

EFFECT: high Q-factor of thermoelectric material of n-type conductivity based on Bi₂Te₃-Bi₂Se₃ solid solutions by 8 %, reduction of temperature effect on material, as well as reduction of treatment time due to irradiation of its surface with radiation of xenon lamps.

1 cl, 3 dwg