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For Ge semiconductor, assume the Fermi energy level is 0.15 eV below the conduction band energy Ec. Let the absolute temperature T for items i and ii be 200 K. i. Find the temperature at which there is an electron at the state Ec + 0.5 x KbT with probability 30%. ii. Repeat item i by using the Boltzmann approximation rather than the Fermi-Dirac distribution. iii. Find the difference in temperature between items i and ii above and express this difference as percentage.

For Ge semiconductor, assume the Fermi energy level is 0.15 eV below the conduction band energy Ec. Let the absolute temperature T for items i and ii be 200 K. i. Find the temperature at which there is an electron at the state Ec + 0.5 x KbT with probability 30%. ii. Repeat item i by using the Boltzmann approximation rather than the Fermi-Dirac distribution. iii. Find the difference in temperature between items i and ii above and express this difference as percentage.

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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For Ge semiconductor, assume the Fermi energy level is 0.15 eV below the conduction band energy Ec. Let the absolute temperature T for items i and ii be 200 K. i. Find the temperature at which there is an electron at the state Ec + 0.5 × KbT with probability 30%. ii. Repeat item i by using the Boltzmann approximation rather than the Fermi-Dirac distribution. iii. Find the difference in temperature between items i and ii above and express this difference as percentage.
Transcribed Image Text:For Ge semiconductor, assume the Fermi energy level is 0.15 eV below the conduction band energy Ec. Let the absolute temperature T for items i and ii be 200 K. i. Find the temperature at which there is an electron at the state Ec + 0.5 × KbT with probability 30%. ii. Repeat item i by using the Boltzmann approximation rather than the Fermi-Dirac distribution. iii. Find the difference in temperature between items i and ii above and express this difference as percentage.
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