Comment on Is there an equivalent of solar panels for radio waves?
Preflight_Tomato@lemm.ee 2 weeks ago
Yes, these devices exist. But, IR is significantly, even several orders of magnitude, less powerful from the sun than visible and UV light. The only applications derive from receiving power from human sources that are bright enough, some examples are here in the other comments.
Even then, I have doubts that human IR emitters produce enough power for anything but the most highly efficiently engineered device, outside of a microwave.