Calculate the intrinsic electrical conductivity of GaAs at 125°C. [Eg = 1.47 eV; μn = 0.720 m2/(V · s); μp = 0.020 m2/(V · s); ni = 1.4 × 1012 m−3.]
The intrinsic electrical conductivity of
Answer to Problem 81AAP
The intrinsic electrical conductivity of
Explanation of Solution
Write the expression for the conductivity of
Here, the intrinsic carrier is
Convert the temperature from degree Celsius to Kelvin.
Write the expression for the conductivity of
Here, the Boltzmann constant is
Conclusion:
Here, the charge is
Substitute
Substitute
Thus, the intrinsic electrical conductivity of
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Chapter 14 Solutions
Foundations of Materials Science and Engineering
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