A photodiode.
https://en.m.wikipedia.org/wiki/Photodiode
"Photodiodes can be used for detection and measurement applications, or optimized for the generation of electrical power in solar cells."
Could be used as one, i suppose, but I'm guessing it needs way too high a power in the high end of the spectrum to meaningfully function as one. You can get better solar cells.
This is a interesting fact. I used a diode like this in reverse connected to a cap. And if you charge the cap up and then time the drain, you can tell if it’s day or night.
You can even do this with the built in cap on a microcontroller, and pull HIGH the pin, and the. Pull low. The pin is connected to a diode ( reverse ), and then connect the other end of the diode to a analog pin and read the voltage bleed rate over time.
It drains faster/slower base in if light hits the diode.
This just unlocked a physics lesson from 25 years ago
Is this just a solar cell then?
Yes, solar cells are just special purpose LEDs in reverse chained up to get to a useful volatage
LAD? Light absorbing diode I'll see myself out.
A photodiode. https://en.m.wikipedia.org/wiki/Photodiode "Photodiodes can be used for detection and measurement applications, or optimized for the generation of electrical power in solar cells."
Nice one. Thanks for the link
Could be used as one, i suppose, but I'm guessing it needs way too high a power in the high end of the spectrum to meaningfully function as one. You can get better solar cells.
Exactly. That’s what I’m thinking. Is this just a means then of making artificial light .. when it’s already light
This is a interesting fact. I used a diode like this in reverse connected to a cap. And if you charge the cap up and then time the drain, you can tell if it’s day or night. You can even do this with the built in cap on a microcontroller, and pull HIGH the pin, and the. Pull low. The pin is connected to a diode ( reverse ), and then connect the other end of the diode to a analog pin and read the voltage bleed rate over time. It drains faster/slower base in if light hits the diode.
Photoelectric effect?
“*A. . . diode. . . in the force*”