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INTRINSIC SEMICONDUCTORS...

INTRINSIC SEMICONDUCTORS

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A pure, perfect semiconductor with an ideal crystal structure is called an intrinsic semiconductor.
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Intrinsic and Extrinsic Semiconductor

Name the charge carriers in the following at room temperature : (i) Conductor (ii) Intrinsic semiconductor (iii) Insulator.

Knowledge Check

  • Assertion: The conductivity of an intrinsic semiconductor depends on its temperature. Reason The conductivity of an intrinsic semiconductor is slightly higher than that of a lightly doped p-type semiconductor.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
    If both assertion and reason are true not but reason is not the correct explanation of assertion.
    C
    If assertion is true but reason is false
    D
    If both assertion and reason are false.

  • A: the conductivity of an intrinsic semiconductor at zer kelvin is zero R: The bond strength of the semiconductor at zero kelvin is much higher as compared to the bond strength at room temperature.

    A
    If both Assetion & Reason are true and the reason is the not the correct explanation of the assertion , then mark (1)
    B
    if both Assertion & Reason are true but the reason is not the correct explanation of the assertion ,then mark (2)
    C
    If Assertion is true statement but reason is false, then mark (3).
    D
    If both Assertion and reason are false statements, then mark (4)

  • Assertion : An N -type semiconductor has a large number of electrons but still it is electrically neutral. Reason: An N -type semiconductor is obtained by doping an intrinsic semiconductor with a pentavelent impurity.

    A
    If both the assertion and reason are true and reason is a true explantion of the assertion.
    B
    If both the assertion and reason are true but the reason is not true the correct explantion of the assertion.
    C
    If the assertion is true but reason false
    D
    If both the assertion and reason are false.

    • Similar Questions

    Explore conceptually related problems

    Assertion (A) : A p-type semiconductor has a large number of holes yet it is electrically neutral. Reason (R) : A p-type semiconductor is obtained by doping an intrinsic semiconductor with a trivalent impurity.

    Draw the energy band diagram when intrinsic semiconductor (Ge) is doped with impurity atoms of Antimony (Sb). Name the extrinsic semiconductor so obtained and majority charge carriers in it.

    C and Si both have same lattice structure, having 4 bonding electrons in each. However, C is insulator whereas Si is intrinsic semiconductor. This is because

    C and Si both have same lattice structure, having 4 bonding electrons in each. However, C is insulator whereas Si is intrinsic semiconductor. This is because

    C and Si both have same lattice structure, having 4 bonding electrons in each. However, C is insulator whereas Si is intrinsic semiconductor. This is because

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