Non-stoichiometric cuprous oxidem, ` Cu_(2)O` can be prepared in the laboratory. In this oxide, copper to oxygen ratio is slightly less than 2 :1 . Can you account for the fact that this substances is a a p -type semiconductor ?

Non-stoichiometric cuprous oxidem, ` Cu_(2)O` can be prepared in the l

1.	Non-stoichiometric cuprous oxidem, ` Cu_(2)O` can be prepared in the laboratory. In this oxide, copper to oxygen ratio is slightly less than 2 :1 . Can you account for the fact that this substances is a a p -type semiconductor ?
Answer» The ratio less than 2:1 in ` Cu_(2)O` shows that some cuprous `(Cu^(+))` ions have been replaced by cupric ` (Cu^(2+))` ions. To maintion electrical neutrality , every two ` Cu^(+)` ions will be due to presence of these positive holes, hence it is a p-type semiconductor.

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Non-stoichiometric cuprous oxidem, ` Cu_(2)O` can be prepared in the laboratory. In this oxide, copper to oxygen ratio is slightly less than 2 :1 . Can you account for the fact that this substances is a a p -type semiconductor ?

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