Apparatus and associated methods relate to a thermoelectric device having a superconducting generator ring. In an illustrative example, a thermoelectric device may include a differential generator supply and a thermoelectric generator ring. The thermoelectric generator ring, for example, may be configured to generate an electric current based on a differential temperature received from the differential temperature supply. For example, the thermoelectric generator ring may include a number of thermoelectric coupons forming a ring on a horizontal plane. Each of the thermoelectric coupons may include an n-type impurity diffused silicon semiconductor (IDSS) and an p-type IDSS. For example, the impurities may be distributed in the IDSS at a predetermined concentration distribution, at which a forward bias voltage of the IDSS is below a predetermined target voltage (e.g., 20 mV) Various embodiments may advantageously generate a low-voltage loss high electric current based on an applied temperature differential at the thermoelectric coupons.
