Modern Physics 6 Question 33
38. The impurity atoms with which pure silicon should be doped to make a $p$-type semiconductor are those of
(a) phosphorus
(b) boron
(c) antimony
(d) aluminium
(1988, 2M)
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Solution:
- To make a $p$-type semiconductor, a trivalent impurity should be added to pure tetravalent compounds.
