What is the role of a doping element in a semiconductor? (2020)
Practice Questions
Q1
What is the role of a doping element in a semiconductor? (2020)
To increase resistance
To decrease temperature
To change the conductivity
To create a magnetic field
Questions & Step-by-Step Solutions
What is the role of a doping element in a semiconductor? (2020)
Step 1: Understand what a semiconductor is. A semiconductor is a material that can conduct electricity, but not as well as a metal.
Step 2: Know that pure semiconductors have a limited number of charge carriers (electrons and holes) that can carry electricity.
Step 3: Learn about doping. Doping is the process of adding small amounts of other elements (called doping elements) to the semiconductor.
Step 4: Recognize that doping elements can either add extra electrons (n-type doping) or create holes (p-type doping) in the semiconductor.
Step 5: Understand that by adding these doping elements, we increase the number of charge carriers, which improves the semiconductor's ability to conduct electricity.
Step 6: Conclude that the role of a doping element is to change the conductivity of the semiconductor by introducing more charge carriers.
