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Explain why conduction is not possible in semiconductors and insulators when an external electric field is applied.
Explain why conduction is not possible in semiconductors and insulators when an external electric field is applied.
Conduction is not possible in semiconductors and insulators when an external electric field is applied because there is a forbidden gap present in these materials. This forbidden gap prevents the movement of electrons to the conduction band, unlike in metals where electrons can easily move and conduct electricity.
What is the energy difference between a location close to an ion core and another location away from the ion core in silicon?
What is the energy difference between a location close to an ion core and another location away from the ion core in silicon?
The energy difference between a location close to an ion core and another location away from the ion core in silicon is approximately 1 eV.
What is the approximate distance between the two locations mentioned in the previous question?
What is the approximate distance between the two locations mentioned in the previous question?
The approximate distance between the two locations mentioned in the previous question is about 1 Å (10^-10 m).
What field gradient is necessary to move an electron from the top of the valence band to the bottom of the conduction band in silicon?
What field gradient is necessary to move an electron from the top of the valence band to the bottom of the conduction band in silicon?
What is the difference between conduction in metals and conduction in semiconductors/insulators?
What is the difference between conduction in metals and conduction in semiconductors/insulators?
What is the significance of the forbidden gap in semiconductors and insulators?
What is the significance of the forbidden gap in semiconductors and insulators?
What is the energy difference between a location close to an ion core and another location away from the ion core in silicon?
What is the energy difference between a location close to an ion core and another location away from the ion core in silicon?
What is the field gradient necessary to move an electron from the top of the valence band to the bottom of the conduction band in silicon?
What is the field gradient necessary to move an electron from the top of the valence band to the bottom of the conduction band in silicon?
Why is conduction not possible in semiconductors and insulators when an external electric field is applied?
Why is conduction not possible in semiconductors and insulators when an external electric field is applied?
What is the distance between two locations with an energy difference of approximately 1 eV in silicon?
What is the distance between two locations with an energy difference of approximately 1 eV in silicon?
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