Question

$n$ type and $p$ type semiconductors can be obtained by doping pure silicon respectively with.

• A. Arsenic Phosphorous
• B. Indium Aluminium
• C. Phosphorous Indium
• D. Aluminium Boron

Answer 1

Answer: (C)

Phosphorous Indium

For n doping -The 5-valent dopant has an outer electron more

For P type-3 valence electrons, so it will produce p-type semiconductor.