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HW2_merged

# HW2_merged - NCN www.nanohub.org EE-305 Solid State Devices...

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Alam ECE-305 1 www.nanohub.org NCN EE-305: Solid State Devices Solution Homework #2 Muhammad Ashraful Alam [email protected]

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Q1 Alam ECE-305 2 Ego=1.170; a=4.730e-4; b=636; T=[0:1:600]; Eg=Ego-a.*(T.^2)./(T+b); Plot(T, Eg); hold on; Ego=1.205; a=2.8e-4; Eg=Ego-a.*T; Plot (T, Eg);
Q2 a & b Alam ECE-305 3 Ga As Si

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Q2 cont. Alam ECE-305 4 c) N type d) P type Ec Ef Ei N-Type Ec Ef Ei Ev Ev P-Type
Q3 Alam ECE-305 5 a) Given E=E F 1 1 ( ) 2 1 e F F B F E E k T f E b) Given E F =E c 1 1 ( ) 0.269 1 1 e c B c E kT Ec k T f E kT e b) Given f (Ec+kT) =1-f (Ec+kT) 1 e 1 1 1 e 1 e 1 e F c B F c F F B c B c B E kT E k T E kT E k T E kT E k T E kT E k T

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Q3 cont. Alam ECE-305 6 e e F C c B F B F C E kT E k T E kT E k T E kT E
Q4 Alam ECE-305

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