Which of the following dopants is added to si | vedclass

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(A) To obtain an $n$-type semiconductor, a group-$15$ element (pentavalent) is added as a dopant to a group-$14$ element like silicon $(Si)$.
Among t

Vedclass · Accepted Answer

$As$

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(A) To obtain an $n$-type semiconductor, a group-$15$ element (pentavalent) is added as a dopant to a group-$14$ element like silicon $(Si)$.
Among the given options, $As$ (Arsenic) belongs to group-$15$, while $B$ (Boron), $Ga$ (Gallium), and $In$ (Indium) belong to group-$13$.
Therefore, adding $As$ to $Si$ creates an $n$-type semiconductor due to the presence of an extra electron.

Which of the following dopants is added to silicon to obtain an $n$-type semiconductor?

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