What kind of p-n junction diode does not requ | vedclass

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(C) $p-n$ junction diode that does not require any external bias to function is a $Solar \ Cell$. In a $Solar \ Cell$,the generation of electromotive

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Solar Cell

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(C) $p-n$ junction diode that does not require any external bias to function is a $Solar \ Cell$. In a $Solar \ Cell$,the generation of electromotive force $(EMF)$ occurs due to the absorption of light (photons) by the semiconductor material. When light with energy greater than the bandgap energy $(E_g)$ falls on the $p-n$ junction,electron-hole pairs are generated. These charge carriers are separated by the junction's electric field,creating a potential difference across the device without the need for an external voltage source.

What kind of $p-n$ junction diode does not require any kind of bias?

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