The given graph represents V - I characteristic for a semiconductor device. Which of the following statement is correct?

It is V - I characteristic for solar cell where, point A represents open circuit voltage and point B short circuit current

It is for a solar cell and points A and B represent open circuit voltage and current, respectively

It is for a photodiode and points A and B represent open circuit voltage and current respectively

It is for a LED and points A and B represent open circuit voltage and short circuit current, respectively

EASY

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Responsivity of photodiode is defined as ratio of photocurrent ( $I_{P}$ ) to incident light power $P$ at given _____.

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Important Questions on Solids

MEDIUM

Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode

The given graph represents

V

I

characteristic for a semiconductor device.
Question Image

Which of the following statement is correct?

EASY

Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode

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

Choose the correct statement from the following.

EASY

Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode

LED is constructed from

G a - A s - 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 \times 10^{- 34} J - s

and

c = 3 \times 10^{8} m s^{- 1}

EASY

Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode

Photodiode is a device

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 _____ (

I_{P}

) to incident light power P at given wavelength.

EASY

Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode

What is the cutoff wavelength of a photodiode?

EASY

Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode

What is the wavelength range of silicon photodiode detection?

EASY

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.

EASY

Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode

What is photodiode give an important use of photodiode?

EASY

Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode

What are the advantages of photodiode?

EASY

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

Operating wavelength is _____

nm

and photodiode has 100% quantum efficiency.

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 (

I_{P}

) to incident light power

P

at given wavelength.

EASY

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.

EASY

Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode

Is a photodiode a current source?

EASY

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.

EASY

Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode

What is the main disadvantages of PIN photodiode?

EASY

Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode

How can we reduce dark current in photodiode?

EASY

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.

EASY

Physics>Modern Physics>Solids>Special Purpose P-N Junction Diode

What is the formula of responsivity of photodiode?

Responsivity of photodiode is defined as ratio of photocurrent (IP) to incident light power P at given _____.

Important Questions on Solids

Learn and Prepare for any exam you want !

Responsivity of photodiode is defined as ratio of photocurrent ( $I_{P}$ ) to incident light power $P$ at given _____.