We demonstrate here, for the first time, the feasibility of enhancing the thermoelectric properties, by electric field effect controlled doping. The experimental data, on thin Bi films reported here, confirm the considerable enhancement of the Seebeck voltage. It should be noted that Bi may not be the most effective thermoelectric to use in this context. Some of the narrow-gap semiconductor thermoelectrics, presently investigated, carry an even larger potential of improved thermoelectric properties.
Bibliographical noteFunding Information:
This work was supported in part by the Ministry of Science of Israel Joint Chinese-Israel Research Grant 2001-3.
- Bi films
- Electric field effect