Generating electrical power from waste heat

[Notebook]

https://share-ng.sandia.gov/news/resources/news_releases/heat_power/

Researchers from Sandia National Laboratories have developed a tiny silicon-based device that can harness what was previously called waste heat and turn it into DC power. Their advance was recently published in Physical Review Applied.

Is their much infra-red in the Solar System?

N.

 

[Urwumpe]

Is that really more efficient that the Seebeck effect?