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What is dark current in photodiode?

Important Questions on Solids

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Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode
The given graph represents V - I characteristic for a semiconductor device.
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Which of the following statement is correct?
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Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode

Two p - n photodiodes are fabricated from semiconductors with band gap of 2.8eV and 2.6eV, respectively.

Choose the correct statement from the following.

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Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode
LED is constructed from Ga-As-P semiconducting material. The energy gap of this LED is 1.9 eV. Calculate the wavelength of light emitted and its colour. h=6.63×10-34 J-s and c=3×108 m s-1
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Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode
Photodiode is a device
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Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode

What is the wavelength range of silicon photodiode detection?
 

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Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode
When a very large reverse bias is applied to the photodiode, the dark current becomes the _____ saturation current.
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Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode
A photodiode is a device that produces a current which is linear with the input light power.
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Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode
What is the cutoff wavelength of a photodiode?
 
MEDIUM
Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode
How is photodiode responsivity measured?
 
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Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode
What are the advantages of photodiode?
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Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode
What is the formula of responsivity of photodiode?
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Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode
Operating wavelength is _____ nm and photodiode has 100% quantum efficiency.
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Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode

How can we reduce dark current in photodiode?

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Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode
V = +V, In this state the current increases exponentially. This state is also known as _____ bias mode.
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Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode
What is the main disadvantages of PIN photodiode?
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Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode
 Dark currents in photodiode can be reduced by using a protective guard ring of _____ material.
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Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode
 The responsivity of silicon photodiode is a measure of sensitivity to light. It is defined as ratio of _____ (IP) to incident light power P at given wavelength.
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Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode
How much current does a photodiode produce?
 
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Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode
Dark currents in photodiode can be reduced by using a protective guard ring of conductive material.
EASY
Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode
The responsivity of silicon photodiode is a measure of sensitivity to light. It is defined as ratio of photocurrent (IP) to incident light power P at given wavelength.