Physics, asked by mohidqadeer94, 3 months ago

why don't we dope a semiconductor with a hexavalent or divalent impurity???

Answers

Answered by amanmishrakp

Explanation:

Germanium and silicon are group 14 elements, they have 4e in their valence shells and they form 4 bands. A large variety of solids have been prepared by combination of group 13 and15 elements and by combination of groups12 and 16 elements. Therefore we can also use hexavalent impurity.

examples : ZnS CdS, CdSe andHgTe

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