FIELD: electricity.
SUBSTANCE: invention relates to thermoelectric instrument engineering, particularly to structures and materials used in thermoelectric cell (TEC) and thermoelectric batteries (TEB). Materials have different rates of electric and thermal conductivity. Carbon material with sp3 atomic bonds hybridisation is used as a main material. Carbon material with sp2 bond hybridisation is used as an additional material. Depth d, width b of grooves and distance 1 between the nearest of them satisfy the formula: 2 nm≤d≤10 nm, 1≤1/b≤100. Electric contacts are located along groove bottom and on the opposite surface of additional material.
EFFECT: high efficiency factor; thermoelectric element consists of main material having extended parallel recesses such as grooves and additional material placed into grooves, and electric contacts to additional material.
2 dwg
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