What kind of light does a solar cell need?

        March 10, 2018 Sciencing | Global | renewables: solar

Like a chemical battery, a solar cell has two sides, positive (p) and negative (n), which generate electricity when the sun hits the "p-n" junction. But sunlight outside the visible range (the "viz" 400-700 nm) produces heat rather than photoelectron current, either via low-energy infrared (IR > 700 nm) or high-energy ultraviolet (UV < 400) rays.