Question

Explain the formation of holes in intrensic semiconductor

Answer 1

Answer:

Here the answer

Explanation:

Consider an interensic semiconductor Due to thermal energy the 4 valence electrons forming bond with the Silicon atoms breaks  the bond this make electron available to go the conduction band. The electron that has went to the conduction band is replace by a hole(defined as the positive charge ) .the more the electrons leave the more is the number no of more is the hole

Answer 2

Answer:

Explanation:

An intrinsic semiconductor is an undoped semiconductor. This means that holes in the valence band are vacancies created by electrons that have been thermally excited to the conduction band, as opposed to doped semiconductors where holes or electrons are supplied by a “foreign” atom acting as an impurity.