eli5: Do solar panels only work with sunlight, or can they be tuned to capture energy from other wavelengths outside the visible spectrum?

Question

eli5: Do solar panels only work with sunlight, or can they be tuned to capture energy from other wavelengths outside the visible spectrum?

In: 2876

Answer 1

[Multi-junction solar cells](https://en.wikipedia.org/wiki/Multi-junction_solar_cell) DO capture infrared energy.

Anything above 700 nm (up to 1,000,000 nm) is infrared.

Figure C on the linked article shows how Multi-junction solar cells absorb plenty of light above 700 nm.