Dose a solar panel need the entire range or spectrum of sunlight to produce power?
I think it's in the Ultra-Violet range because Solar Panels will still put out almost full power on an overcast day.
It's a huge field of study, very important to solar cell development. People are trying to optimize spectral response for sunlight, even for sunlight in specific places. Google solar cell spectral response for many many websites. Most of them are specific to one experiment.
