why does AgBr show both frenkel n schottky defect? and why does ONLY AgBr show both d defects?
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Lets understand What is Schotty defect and Frenkel defect:-
Schottky defect arise due to missing of ions from their lattice point and Frenkel defect arise when the missing ions occupy interstitial sites.
The radius of AgBr is intermediate hence it shows both Frenkel and Schottky defects.
The major defect in AgBr is Frenkel defect. It has ccp lattice, where atoms of Br with atoms of Ag occupies all octahedral holes. Ag moves from octahedral to tetrahedral sites causing only cations to precipitate.
Schottky defect in AgBr is exhibited due to precipitation of both cations and anions.
In AgBr Ag+ ion is small in size and when removed from lattice point they can occupy interstitial sites and hence show both Frenkel and Schottky defects.
Schottky defect arise due to missing of ions from their lattice point and Frenkel defect arise when the missing ions occupy interstitial sites.
The radius of AgBr is intermediate hence it shows both Frenkel and Schottky defects.
The major defect in AgBr is Frenkel defect. It has ccp lattice, where atoms of Br with atoms of Ag occupies all octahedral holes. Ag moves from octahedral to tetrahedral sites causing only cations to precipitate.
Schottky defect in AgBr is exhibited due to precipitation of both cations and anions.
In AgBr Ag+ ion is small in size and when removed from lattice point they can occupy interstitial sites and hence show both Frenkel and Schottky defects.
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