Question

In an n-type silicon crystal at room temperature, which of the following can have
a concentration of 4*10^19 cm-3?
(A) Silicon atoms (B) Holes
(C) Dopant atoms (D) Valence electrons

Answer 1

option ''c'' is correct.

Dopant atoms

Answer 2

Hey Dear,

◆ Answer -

In an n-type silicon crystal at room temperature, dopant atoms can have a concentration of 4*10^19 cm^-3.

◆ N-type semiconductor -

• Typical pentavalent (column V) impurity is added.
• Usually Arsenic/Phosphorous is used for doping here.
• Electrons are majority carrier in this type of semiconductors.

Hope this helps you. Thanks for asking..