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A Si wafer has been doped n-type with 10¹7 As atoms cm³. (1) Where is the Fermi level in this sample at room temperature (27 °C) with respect to the Fermi level (EFi) in intrinsic Si? (2) Draw a schematic energy band diagram of the above systems (Indicate the valence band, conduction band, vacuum energy level, Fermi energy level, electron affinity, and work function in the diagram). Locate the Fermi energy level for n-type with As atoms 1017 cm-3 in your drawing. What is the ionization energy of an As atom?

A Si wafer has been doped n-type with 10¹7 As atoms cm³. (1) Where is the Fermi level in this sample at room temperature (27 °C) with respect to the Fermi level (EFi) in intrinsic Si? (2) Draw a schematic energy band diagram of the above systems (Indicate the valence band, conduction band, vacuum energy level, Fermi energy level, electron affinity, and work function in the diagram). Locate the Fermi energy level for n-type with As atoms 1017 cm-3 in your drawing. What is the ionization energy of an As atom?

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
Section: Chapter Questions
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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A Si wafer has been doped n-type with 10¹7 As atoms cm³. (1) Where is the Fermi level in this sample at room temperature (27 °C) with respect to the Fermi level (EFi) in intrinsic Si? (2) Draw a schematic energy band diagram of the above systems (Indicate the valence band, conduction band, vacuum energy level, Fermi energy level, electron affinity, and work function in the diagram). Locate the Fermi energy level for n-type with As atoms 1017 cm-3 in your drawing. What is the ionization energy of an As atom?
Transcribed Image Text:A Si wafer has been doped n-type with 10¹7 As atoms cm³. (1) Where is the Fermi level in this sample at room temperature (27 °C) with respect to the Fermi level (EFi) in intrinsic Si? (2) Draw a schematic energy band diagram of the above systems (Indicate the valence band, conduction band, vacuum energy level, Fermi energy level, electron affinity, and work function in the diagram). Locate the Fermi energy level for n-type with As atoms 1017 cm-3 in your drawing. What is the ionization energy of an As atom?
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