Charge Carriers in Semiconductors

What determines the current in a semiconductor?

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What happens when a small energy is added to a donor electron in a semiconductor?

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What type of semiconductor is created when the number of electrons is greater than the number of holes?

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What is the intrinsic carrier concentration in a silicon semiconductor at T = 300 K?

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What happens when the Fermi energy level moves closer to the conduction band in an n-type material?

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Calculate the electron and hole concentration in GaAs at T = 300K when Fermi energy is 0.22 eV below the conduction band.

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Determine the concentration of donor impurity atoms that must be added to make silicon n-type with Fermi energy 0.20eV below the conduction band edge.

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Describe the idea for an extrinsic semiconductor.

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What are the important parameters to consider in semiconductors?

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What is the effective density states function in the conduction band?

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