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What is a p–n junction?
A p–n junction is a boundary or interface between two types of semiconductor materials, p-type and n-type, inside a single crystal of semiconductor.
What does the 'p' side of a p–n junction contain an excess of?
The 'p' side contains an excess of holes.
What allows electric current to pass through the p–n junction only in one direction?
The excess of holes on the 'p' side and the excess of electrons on the 'n' side.
How are the p- and n-type regions creating the p–n junction made?
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What are p–n junctions the elementary 'building blocks' of?
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What are some electronic devices that contain p–n junctions as active sites?
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How are p–n junctions made in semiconductor materials?
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What type of charge does the 'p' side of a p–n junction contain an excess of?
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What type of charge does the 'n' side of a p–n junction contain an excess of?
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What property of p–n junctions allows electric current to pass through the junction only in one direction?
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