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Account for the following : (i) Schott...

Account for the following :
(i) Schottky defects lower the density of related solids.
(ii) Conductivity of silicon increases on doping it with phosphorus.

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Why does the conductivity of silicon increase upon doping with phosphorus ?

Among the following solids, Schottky defect is NOT observed in-

Explain the following terms : (i) Schottky defects (ii) Frenkel defects

Which of the following defects, if present, lowers the density of the crystal ?

There is an increase in conductivity when Silicon is doped with Phosphorous. Give reason.

Knowledge Check

  • Which of the following defect, if present, lowers the density of the crystal?

    A
    Frenkel
    B
    Schottky
    C
    Edge dislocation
    D
    Constitution of F-centres

  • Which of the following defects, if present, lowers the density of the crystal ?

    A
    Frenkel
    B
    Schottky
    C
    Edge dislocation
    D
    Constitution of F-centres.

  • In which amoung the following solids, Schottky defect is not observed ?

    A
    ZnS
    B
    NaCI
    C
    KCI
    D
    CsCI