What is the difference between a photo diode and a solar cell? - Vidyadip

Question

What is the difference between a photo diode and a solar cell?

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Answer

Both are semiconductor photovoltaic devices. A photodiode is a reverse-biased pn-junction diode while a solar cell is an unbiased pn-junction diode. Photod iodes, however, are optimized for light detection while solar cells are optimized for energy conversion efficiency.

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