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

Answer 2

$n$-type and $p$-type semiconductors can be obtained by doping pure silicon or germanium with pentavalent element like $P$, As and trivalent � element like $Al$, In, respectively.