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Why does half of the doped atoms contribute electrons to the conduction band instead of all of them?

Why does half of the doped atoms contribute electrons to the conduction band instead of all of them?

Grade:12

1 Answers

Vikas TU
14149 Points
6 years ago
Because in conduction band only the elctrons mograte easily that is leave its place and form a hole.
And overall the enrgy required here in conduction band to the elctron is very less than the valency band and so on.
These dopnats are added to the semiconductor materials as donar atoms which can fill those holes.

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