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Question

With which one of the following elements silicon should be doped so as to give p-type of semiconductor?


A

Selenium

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B

Boron

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C

Germanium

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D

Arsenic

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Solution

The correct option is B

Boron


p-type semiconductor holes are majority carriers es are minority carriers
Si4 valence electrons}Doping−−−Any group III element (B,Al,Ga,In,Tn)
Boron 3 valence electrons
Selenium 6 valence electrons χ
Arsenic 5 valence electrons χ
Germanium 4 valence electrons χ


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