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Difference between intrinsic and extrinsic semi …

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Difference between intrinsic and extrinsic semi conductor

    • Posted by Rajat Yadav 4 years, 9 months ago

    CBSE > Class 12 > Physics
    • 1 answers

    Yogita Ingle 4 years, 9 months ago

    Intrinsic Semiconductor Extrinsic Semiconductor
    Pure type of semiconductor Impure type of semiconductor
    Density of electrons is equal to the density of holes Density of electrons is not equal to the density of holes
    Electrical conductivity is low Electrical conductivity is high
    Dependence on temperature only Dependence on temperature as well as on the amount of impurity
    The bandgap between conduction (C.B) and valence band (V.B) is small. The energy gap is higher than the intrinsic semiconductors.
    Examples: Si, Ge Examples: GaAs, GaP

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