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Dark current question

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ee484

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Hi all,
I have a little problem of understanding dark current.

Is dark current the same as reverse bias current of a photodiode?
If there are some other sources of dark current, such as detects in silicon..etc, what are the portion of reverse bias current that contributes to dark current?

Thank you!
B
 
The term refers rather to background current ..
This is current which may be present as the result of thermionic emission or other effects when there is no light incident on the photosensitive cathode ..

Regards,
IanP
 

It is the current produced as a result of no light falling on a photoconductive cell.
 

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