What are the Instrinsic semiconductor ? Explain how do they work?

Explain how does vaccine work?

Explain how does SONAR work?

What are extrinsic semiconductors ? Explain how p-type and n-type semiconductors are formed ?

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What is an intrinsic semiconductor? How can this material semiconductor? How can this material be converted into p-type extrinsic semiconductor? Explain with the help of energy band diagrams?

What do you mean by Intrinsic Semiconductor.

How can intrinsic semiconductor material be converted into n-type extrinsic semiconductor? Explain with the help of energy band diagrams?