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Q#1
Semiconductor Physics
GATE EC 2023
NAT
+2 marks
-0 marks
In a semiconductor device, the Fermi-energy level is 
above the valence band energy. The effective density of states in the valence band at 
is 
. The thermal equilibrium hole concentration in silicon at 
is _________
. (rounded off to two decimal places). Given KT at 
is 
.
Explanation:
Given, 
[Considering it is given at ]
Also, 
at 
Given, effective density of states in the valence band,
Now, hole concentration at is given as
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