A semiconductor material with its fermi energy exactly in the middle of the bandgap of
0.400 eV. Calculate the probability to occupy an energy state at the bottom of the
conduction band at temperature 300 K and determine the percentage increase in the
probability for a temperature rise of 20 K.
(a) 5.93 1057%
(b) 4.36 10 33
(c) 5.93 10 396
(d) 4.36 10 46.
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Answer:Fermi level in intrinsic semiconductor
The Fermi level and band gap in a solid largely determine its electrical properties. In a perfect semiconductor (in the absence of impurities/dopants), the Fermi level lies close to the middle of the band gap1.
Explanation:
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