Concept explainers
(a)
The fraction of current carried by electron for
The fraction of current carried by hole for
(a)
Answer to Problem 85AAP
The fraction of current carried by electron for
The fraction of current carried by hole for
Explanation of Solution
Write the expression for the fraction of current carried by electrons.
Here, the mobility of the electron is
Write the expression for the fraction of current carried by hole.
Conclusion:
Refer to table 14.6 “Electrical properties of intrinsic semiconducting compounds at room temperature
Substitute
Substitute
Thus, the fraction of current carried by electron for
Thus, the fraction of current carried by hole for
(b)
The fraction of current carried by electron for
The fraction of current carried by hole for
(b)
Answer to Problem 85AAP
The fraction of current carried by electron for
The fraction of current carried by hole for
Explanation of Solution
Write the expression for the fraction of current carried by electrons.
Here, the mobility of the electron is
Write the expression for the fraction of current carried by hole.
Conclusion:
Refer to table 14.6 “Electrical properties of intrinsic semiconducting compounds at room temperature
Substitute
Substitute
Thus, the fraction of current carried by electron for
Thus, the fraction of current carried by hole for
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Chapter 14 Solutions
Foundations of Materials Science and Engineering
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