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In a semiconductor, separation of energy gap between conduction and valence bands is of the order of
- a)100 eV
- b)10 eV
- c)1 eV
- d)zero
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
In a semiconductor, separation of energy gap between conduction and va...
Semiconductor and Energy Gap
A semiconductor is a type of material that has electrical conductivity between that of a conductor and an insulator. Semiconductors are widely used in electronic devices such as transistors, diodes, and integrated circuits.
The energy gap, also known as the bandgap, is the energy difference between the valence band and the conduction band in a semiconductor.
Significance of Energy Gap
The energy gap is an important parameter for semiconductors as it determines their electrical and optical properties.
- A larger energy gap means that it requires more energy for electrons to jump from the valence band to the conduction band, resulting in a lower electrical conductivity.
- A smaller energy gap means that it requires less energy for electrons to jump from the valence band to the conduction band, resulting in a higher electrical conductivity.
Answer
The separation of energy gap between conduction and valence bands in a semiconductor is of the order of 1 eV.
This means that the energy required for electrons to jump from the valence band to the conduction band in a semiconductor is around 1 electron-volt.
Option C - 1 eV - is the correct answer.
A semiconductor is a type of material that has electrical conductivity between that of a conductor and an insulator. Semiconductors are widely used in electronic devices such as transistors, diodes, and integrated circuits.
The energy gap, also known as the bandgap, is the energy difference between the valence band and the conduction band in a semiconductor.
Significance of Energy Gap
The energy gap is an important parameter for semiconductors as it determines their electrical and optical properties.
- A larger energy gap means that it requires more energy for electrons to jump from the valence band to the conduction band, resulting in a lower electrical conductivity.
- A smaller energy gap means that it requires less energy for electrons to jump from the valence band to the conduction band, resulting in a higher electrical conductivity.
Answer
The separation of energy gap between conduction and valence bands in a semiconductor is of the order of 1 eV.
This means that the energy required for electrons to jump from the valence band to the conduction band in a semiconductor is around 1 electron-volt.
Option C - 1 eV - is the correct answer.
Community Answer
In a semiconductor, separation of energy gap between conduction and va...
Semiconductors and Energy Gap:
- Semiconductors are materials that have electrical conductivity between that of a conductor and an insulator. Examples include silicon, germanium, and gallium arsenide.
- The electrical conductivity of a semiconductor is determined by the energy gap between its conduction band and valence band. The conduction band is the band of energy levels in a solid where electrons are free to move and conduct electricity, while the valence band is the band of energy levels where electrons are tightly bound to atoms and cannot conduct electricity.
- The energy gap between the conduction and valence bands is typically small in semiconductors, on the order of a few electron volts (eV).
Separation of Energy Gap:
- The separation of the energy gap between the conduction and valence bands is the difference in energy between the bottom of the conduction band and the top of the valence band.
- This separation determines the electrical conductivity of the semiconductor material. When the energy gap is small, electrons can easily move from the valence band to the conduction band, allowing the material to conduct electricity.
- In contrast, when the energy gap is large, only a small number of electrons can be promoted to the conduction band, resulting in poor conductivity.
Order of Energy Gap:
- The order of the energy gap between the conduction and valence bands in a semiconductor is typically on the order of 1 eV.
- This value can vary depending on the specific material used, but it is generally much smaller than the energy gaps in insulators or conductors.
- For example, the energy gap in a typical insulator like diamond is on the order of 5-6 eV, while the energy gap in a typical conductor like copper is zero.
Conclusion:
- In conclusion, the separation of the energy gap between the conduction and valence bands in a semiconductor is typically on the order of 1 eV.
- This small energy gap allows for the efficient movement of electrons between the two bands, making semiconductors useful in a wide range of electronic applications.
- Semiconductors are materials that have electrical conductivity between that of a conductor and an insulator. Examples include silicon, germanium, and gallium arsenide.
- The electrical conductivity of a semiconductor is determined by the energy gap between its conduction band and valence band. The conduction band is the band of energy levels in a solid where electrons are free to move and conduct electricity, while the valence band is the band of energy levels where electrons are tightly bound to atoms and cannot conduct electricity.
- The energy gap between the conduction and valence bands is typically small in semiconductors, on the order of a few electron volts (eV).
Separation of Energy Gap:
- The separation of the energy gap between the conduction and valence bands is the difference in energy between the bottom of the conduction band and the top of the valence band.
- This separation determines the electrical conductivity of the semiconductor material. When the energy gap is small, electrons can easily move from the valence band to the conduction band, allowing the material to conduct electricity.
- In contrast, when the energy gap is large, only a small number of electrons can be promoted to the conduction band, resulting in poor conductivity.
Order of Energy Gap:
- The order of the energy gap between the conduction and valence bands in a semiconductor is typically on the order of 1 eV.
- This value can vary depending on the specific material used, but it is generally much smaller than the energy gaps in insulators or conductors.
- For example, the energy gap in a typical insulator like diamond is on the order of 5-6 eV, while the energy gap in a typical conductor like copper is zero.
Conclusion:
- In conclusion, the separation of the energy gap between the conduction and valence bands in a semiconductor is typically on the order of 1 eV.
- This small energy gap allows for the efficient movement of electrons between the two bands, making semiconductors useful in a wide range of electronic applications.
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In a semiconductor, separation of energy gap between conduction and valence bands is of the order ofa) 100 eV b) 10 eV c) 1 eV d) zero Correct answer is option 'C'. Can you explain this answer?
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