Using the periodic table, indicate which atoms of chemical elements can be added to a silicon crystal to obtain a semiconductor: a) n-type; b) p-type? Suggested elements for impurities: Indium. antimony, phosphorus, scandium, gallium.
a) In order to obtain an n-type semiconductor, it is necessary that the valence of the substance be greater than the valence of silicon, for example: antimony, phosphorus
b) In order to obtain a p-type semiconductor, it is necessary that the valence of the substance be less than the valency of silicon, for example: indium, scandium, gallium
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