One among the following is doping material in p-type of semiconductor:

Carbon

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Indium

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Arsenic

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Phosphorous

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Solution

The correct option is B Indium
We get a p-type of semiconductor when semiconductor is doped with trivalent material link Indium. The addition of trivalent impurities such as boron, aluminum or gallium to an intrinsic semiconductor creates deficiencies of valence electrons,called "holes". It is typical to use B2H6 diborane gas to diffuse boron into the silicon material.

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p - n

Which of the following statements are true about semiconductors ?

(a) Silicon doped with electron rich impurity is a p-type semiconductor

(b) Silicon doped with an electron rich impurity is an n-type semiconductor

(d) An electron vacancy increases the conductivity of n-type semiconductor

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