Physics for Electrical Engineering: Unit III: Semiconductors and Transport Physics
Intrinsic Semiconductors
A semiconductor in extremely pure form is known as intrinsic semiconductor. Its electrical conductivity is changed only by thermal excitation.
INTRINSIC SEMICONDUCTORS
A
semiconductor in extremely pure form is known as intrinsic semiconductor. Its
electrical conductivity is changed only by thermal excitation.
The
common examples for intrinsic semiconductors are pure silicon (Si) and
germanium (Ge). They belong to fourth group elements in the periodic table.
Germanium has 32 electrons and silicon has 14 electrons in their atomic
structures.
They
are tetravalent atoms since they have four valence electrons. The neighbouring
atoms form covalent bonds by sharing four electrons with each other so as to
form a stable structure.
Physics for Electrical Engineering: Unit III: Semiconductors and Transport Physics : Tag: : - Intrinsic Semiconductors
Physics for Electrical Engineering: Unit III: Semiconductors and Transport Physics
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Physics for Electrical Engineering
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