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This 30 picowatt led take energy from ambiant heat. At 30 picowatts per exotic led, with a billion leds, it could extract around 30 milliwatt from the environme
by nick__m 2y ago
This 30 picowatt led take energy from ambiant heat. At 30 picowatts per exotic led, with a billion leds, it could extract around 30 milliwatt from the environment.
- SirMaster 2y agoI don't understand how that means it's more efficient though. Don't you need to put that heat energy back into the environment to heat it back up again? To me that feels like calling a magnet perpetual motion. It seems like it is, but the magnet will eventually wear out. That's like saying this LED is over 100% efficient. It seems like it, but eventually the environmental heat around it will be gone and used up.
- flanked-evergl 2y agoThat in no way supports the false claim that a "LED's efficency exceeds 100%"
- dzhiurgis 2y agoWhat if you make them nanometer thin and roll into cylinder with a solar cell (a bit like battery)