Questions
For extrinsic semiconductors, when doping level is increased;
a
Fermi-level of p-type semiconductors will go downward and Fermi-level of n-type Semiconductor will go upward
b
Fermi-level of both p-type and n-type semiconductors will go upward for T>TF K and Downward T
c
Fermi – level of p and n-type semiconductors will not be affected.
d
Fermi-level of p-type semiconductors will go upward for Fermi-level of n-type Semiconductors will go downward.
detailed solution
Correct option is A
when doping level is increased Fermi level moves down in p- type and moves up in n - typeTalk to our academic expert!
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Mobilities of electrons and holes in a sample of intrinsic germanium at room temperature are and . The electron and hole densities are each equal to . Electrical conductivity of Germanium is
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