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Question
An n-type and p-type silicon can be obtained by doping pure silicon with
An n-type and p-type silicon can be obtained by doping pure silicon with
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Solution
The correct option is D Indium and aluminium
The N-type impurity loses its extra valence electron easily when added to a semiconductor material,and in so doing, increases the conductivity of the material by contributing a free electron. This type of impurity has 5 valence electrons.So for type doping we will use Indium . For P type doping we use atom with valence electron , that's aluminium
The N-type impurity loses its extra valence electron easily when added to a semiconductor material,and in so doing, increases the conductivity of the material by contributing a free electron. This type of impurity has 5 valence electrons.So for type doping we will use Indium . For P type doping we use atom with valence electron , that's aluminium
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