What type of stoichiometric defect is shown by: (i) ZnS (ii) AgBr

Q 1.20: What type of stoichiometric defect is shown by:

(i) ZnS                                    (ii) AgBr

Solution:

(i) ZnS  shows Frenkel defect.

(ii) AgBr shows Frenkel and Schottky defect both .