what are the differences between pn junction diode and PIN Photodiode?
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A PIN-diode has a barrier height that is the same as for a PN-diode with the same doping concentrations for P and N-regions. ... A PIN-diode has a wider depletion region, so it also has a lower capacitance. The electric field is also weaker in a PIN diode due the wider depletion region
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Key Differences between Diode and Photodiode
The key difference between the diode and photodiode is that diode is the semiconductor device which conducts when forward biased applied to it exceeds the barrier potential while the photodiode is the devices which conduct when the light is incident on it.
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