How would one classify a silicon crystal doped with indium?
A)conductor
B)n-type semiconductor
C)p-type semiconductor
D)insulator

Question

Quizplus · Accepted Answer

Indium is a trivalent element, meaning it has three valence electrons. When it is used to dope silicon, which has four valence electrons, it creates "holes" or positive charge carriers in the silicon crystal. This makes the silicon a p-type semiconductor, as it effectively has more positive charge carriers due to the presence of indium.

How Would One Classify a Silicon Crystal Doped with Indium