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Explain the electrical conductivity of a semiconductor and how it compares to that of a conductor and an insulator.
Explain the electrical conductivity of a semiconductor and how it compares to that of a conductor and an insulator.
A semiconductor has an electrical conductivity value between that of a conductor and an insulator. Its resistivity falls as its temperature rises, unlike metals which behave in the opposite way.
How can the conducting properties of a semiconductor be altered in useful ways?
How can the conducting properties of a semiconductor be altered in useful ways?
The conducting properties of a semiconductor can be altered by introducing impurities ('doping') into the crystal structure.
What is created when two differently doped regions exist in the same crystal?
What is created when two differently doped regions exist in the same crystal?
A semiconductor junction is created.
What are the basis of diodes, transistors, and most modern electronics in relation to semiconductors?
What are the basis of diodes, transistors, and most modern electronics in relation to semiconductors?
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Name some examples of semiconductors mentioned in the text.
Name some examples of semiconductors mentioned in the text.
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