What is the effect of doping a semiconductor with acceptor impurities?
Practice Questions
Q1
What is the effect of doping a semiconductor with acceptor impurities?
Increases electron concentration
Increases hole concentration
Decreases conductivity
No effect
Questions & Step-by-Step Solutions
What is the effect of doping a semiconductor with acceptor impurities?
Step 1: Understand what a semiconductor is. A semiconductor is a material that can conduct electricity under certain conditions, like silicon.
Step 2: Learn about doping. Doping is the process of adding impurities to a semiconductor to change its electrical properties.
Step 3: Know what acceptor impurities are. Acceptor impurities are elements that have fewer valence electrons than the semiconductor material, typically from group III of the periodic table, like boron.
Step 4: Realize what happens when you add acceptor impurities. When you add these impurities, they create 'holes' in the semiconductor's structure.
Step 5: Understand what holes are. Holes are the absence of an electron in the semiconductor, and they can move around, allowing the material to conduct electricity.
Step 6: Conclude that doping with acceptor impurities increases the concentration of holes in the semiconductor, enhancing its ability to conduct electricity.
