Question
Download Solution PDFSolar cells are made of:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is Semiconductors.
Important Points
- Solar cells are made up of Semiconductors.
- Two kinds of semiconductors, called p-type and n-type silicon, make up a solar cell.
- The p-type silicon is created by the addition of atoms, such as boron or gallium, which have one fewer electron than silicon in their outer energy level.
- Since boron has one fewer electron than is needed, an electron vacancy or "hole" is produced to form bonds with the surrounding silicon atoms.
- A solar cell consists of a p-type silicon layer mounted next to an n-type silicon layer.
Key Points
- An electrical insulator is a substance through which the electron does not flow freely or the isolator atom has closely bound electrons whose internal electrical charges do not flow freely, under the control of an electric field, very little electrical current can flow through it.
- A superconductor is a surface that gets cooler than a "critical temperature" conducts electricity without resistance.
- Conductors are the structures or objects that cause electricity to pass through them.
Last updated on May 30, 2025
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