In a pure, or intrinsic, semiconductor, valence band holes and conduction-band electrons are always presenta)such that number of holes is greater than the number of electronsb)in equal numbersc)such that number of electrons is greater than the number of holesd)none of theseCorrect answer is option 'B'. Can you explain this answer?

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In a pure, or intrinsic, semiconductor, valence band holes and conduction-band electrons are always present

a)
such that number of holes is greater than the number of electrons
b)
in equal numbers
c)
such that number of electrons is greater than the number of holes
d)
none of these

Correct answer is option 'B'. Can you explain this answer?

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In a pure, or intrinsic, semiconductor, valence band holes and conduct...

Explanation:An intrinsic semiconductor, also called an undoped semiconductor or i-type semiconductor, is a pure semiconductor without any significant dopant species present. The number of charge carriers is therefore determined by the properties of the material itself instead of the amount of impurities. In intrinsic semiconductors the number of excited electrons and the number of holes are equal: n = p.

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In a pure, or intrinsic, semiconductor, valence band holes and conduction-band electrons are always present

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In a pure, or intrinsic, semiconductor, valence band holes and conduction-band electrons are always presenta)such that number of holes is greater than the number of electronsb)in equal numbersc)such that number of electrons is greater than the number of holesd)none of theseCorrect answer is option 'B'. Can you explain this answer?

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