Who Is a Pentavalent Impurity?

Pentavalent impurities are the atoms with five valence electrons used for the doping of semiconductors. i.e. Arsenic (As), Phosphorous (Pi), Antimony (Sb), etc. Additional information: Semiconductors can be classified as; intrinsic semiconductor and extrinsic semiconductor.

What is pentavalent impurity example?

Pentavalent impurity atoms have 5 valence electrons. The various examples of pentavalent impurity atoms include Phosphorus (P), Arsenic (As), Antimony (Sb), etc.

What is the purpose of a pentavalent impurity?

The conductivity of silicon increases by increasing the number of free electrons in it. So, by adding pentavalent impurities the number of free electrons increases. ... The number of holes in silicon atom can be increased by adding trivalent atoms as impurity.