Draw the schematic diagram showing the energy level alignment of metal-semiconductor and semiconductor-semiconductor junctions after contact under thermal equilibrium for the following cases. Note P = work function % = electron affinity Eg = band gap Ec = conduction band Ev = valence band EF = fermi level 1. semiconductor EVAC Metal Ec Eps EFM Ey Before contact 2. Metal semiconductor EVAC Xs Ec Eps ErM Ey Before contact Metal semiconductor EVAC OM Ec EFM Eps Ey Before contact 3. Electron energy Electron energy Electron energy

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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4.
semiconductor
EVAC
Metal
OM
Ec
Eps
Ev
EFM
Before contact
5.
vacuum level
12
P2
P1
Ec2
EF2
Eci
EF1
Vbi
EGI
EG2
Evi
Evz
vacuum level
X2
Ec
AEC
E,
Eg2
EF
Evz
Ey
AE,
Electron energy
6.
Transcribed Image Text:4. semiconductor EVAC Metal OM Ec Eps Ev EFM Before contact 5. vacuum level 12 P2 P1 Ec2 EF2 Eci EF1 Vbi EGI EG2 Evi Evz vacuum level X2 Ec AEC E, Eg2 EF Evz Ey AE, Electron energy 6.
Draw the schematic diagram showing the energy level alignment of metal-semiconductor and
semiconductor-semiconductor junctions after contact under thermal equilibrium for the following
cases.
Note
P = work function
% = electron affinity
EG = band gap
Ec = conduction band
Ey = valence band
EF = fermi level
1.
semiconductor
EVAC
Metal
Os
Xs
Ec
Egs
ErM
Ey
Before contact
2.
semiconductor
EVAC
Metal
Xs
OM
Ec
EyM
Eps
Ey
Before contact
3.
semiconductor
EVAC
Metal
OM
Ec
EFM
Eps
Ev
Before contact
Electron energy
Electron energy
Electron energy
Transcribed Image Text:Draw the schematic diagram showing the energy level alignment of metal-semiconductor and semiconductor-semiconductor junctions after contact under thermal equilibrium for the following cases. Note P = work function % = electron affinity EG = band gap Ec = conduction band Ey = valence band EF = fermi level 1. semiconductor EVAC Metal Os Xs Ec Egs ErM Ey Before contact 2. semiconductor EVAC Metal Xs OM Ec EyM Eps Ey Before contact 3. semiconductor EVAC Metal OM Ec EFM Eps Ev Before contact Electron energy Electron energy Electron energy
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