Define A Hole In A Semiconductor?

1.	Define A Hole In A Semiconductor?
Answer» When energy is supplied to a semiconductor a VALENCE electron is lifted to a higher energy level. The departing electron LEAVES a vacancy in the valence BAND. The vacancy is called a hole. Thus, a vacancy LEFT in the valence band because of lifting of an electron from the valence band to CONDUCTION band is known as a hole. When energy is supplied to a semiconductor a valence electron is lifted to a higher energy level. The departing electron leaves a vacancy in the valence band. The vacancy is called a hole. Thus, a vacancy left in the valence band because of lifting of an electron from the valence band to conduction band is known as a hole.

Answer»

When energy is supplied to a semiconductor a VALENCE electron is lifted to a higher energy level. The departing electron LEAVES a vacancy in the valence BAND. The vacancy is called a hole. Thus, a vacancy LEFT in the valence band because of lifting of an electron from the valence band to CONDUCTION band is known as a hole.

When energy is supplied to a semiconductor a valence electron is lifted to a higher energy level. The departing electron leaves a vacancy in the valence band. The vacancy is called a hole. Thus, a vacancy left in the valence band because of lifting of an electron from the valence band to conduction band is known as a hole.

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