since you've got a concentrated heat source that you want to spread around. Themoelectric devices have been active research field for a long time and there is still some hope of improvement because it is a largely a matter of discovering materials with a high electrical conductivity and poor thermal conductivity.
https://www.rockfordchimneysupply.com/products/thermo-self-p...
since you've got a concentrated heat source that you want to spread around. Themoelectric devices have been active research field for a long time and there is still some hope of improvement because it is a largely a matter of discovering materials with a high electrical conductivity and poor thermal conductivity.
https://en.wikipedia.org/wiki/Thermoelectric_effect