Silicon doped with aluminum and germanium doped... - JAMB Physics 2007 Question
Silicon doped with aluminum and germanium doped with arsenic become?
A
p- and n- types respectively
B
n- en p- type respectively
C
p- type semiconductor
D
n- type semiconductors
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Correct Option: A
When silicon, a four valency element, is doped with aluminum, a three valency element, a p-type semiconductor is produced where the major carriers are the electrons.
Thus, the correct option is p-type and n-type respectively
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