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Following is a property of p-type semiconductor |
Each atom forms four covalent bonds. Fifth electron is extra and becomes delocalized The place where the 4th valence electron is missing is called hole Increase in conductivity is due to negatively charged electron |
The place where the 4th valence electron is missing is called hole |
The correct property of a p-type semiconductor is 3. The place where the 4th valence electron is missing is called a hole. A p-type semiconductor is a type of semiconductor in which the majority charge carriers are holes. Holes are created when a doping atom, such as boron or gallium, is added to a pure semiconductor. The doping atom has fewer valence electrons than the semiconductor atoms, so it creates a vacancy in the valence band. This vacancy is called a hole, and it can move through the semiconductor by accepting an electron from another atom. The other options are incorrect because:
Therefore, the correct property of a p-type semiconductor is 3. The place where the 4th valence electron is missing is called a hole. |