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  • Help me answer: Which of the following have Schottky defect ?

Which of the following have Schottky defect ?

  • Option 1)

    ZnS

  • Option 2)

    NaCl

  • Option 3)

    CuBr

  • Option 4)

    AgCl

 

Answers (1)

best_answer

Crystal with higher coordination number are suffering from schottky defect. NaCl have high coordination Numberb i.e 6:6 

 

 

Schottky defect -

Defect in which equal number of cation and anions are missing from their crystal lattice site called schottky defect .

In this defect density of crystal deecreases and crystal behaves as P - type semiconductor , conductivity of crystal increases .

% of missing unit = (\frac{d_{theoretical} - d_{experimental}}{d_{theoretical}}) \times 100

- wherein

This defect is common in the compound having high coordination number and almost equal size of cation and anion.

ex : NaCl , KCl , CsCl , AgBr etc

 

 


Option 1)

ZnS

This is incorrect

Option 2)

NaCl

This is correct

Option 3)

CuBr

This is incorrect

Option 4)

AgCl

This is incorrect

Posted by

Aadil

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