Consider a gallium arsenide pn junction at T = 300 K with doping concentrations of Na = 1 X 10¹8 cm-³ and Nd = 1 X 10¹6 cm-³. Determine the total space charge width A) W = 6.04 x 10-5 cm B) W = 4.33 x 10-5 cm C) W = 2.78 x 10-5 cm D) W = 4.51 x 10-5 cm = 3.76 x 10-5 cm E) W W F) W = 3.26 x 10-5 cm

Delmar's Standard Textbook Of Electricity
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ISBN:9781337900348
Author:Stephen L. Herman
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Chapter1: Atomic Structure
Section: Chapter Questions
Problem 6RQ: How many valence electrons are generally contained in materials used for insulators?
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Problem 2(a)
Consider a gallium arsenide pn junction at T = 300 K
with doping concentrations of Na = 1 X 10¹8 cm-³ and
Nd = 1 X 10¹6 cm-³.
Determine the total space charge width
-5
A) W = 6.04 × 107 cm
= 4.33 × 10-5 cm
B) W =
-5
C) W = 2.78 x 107 cm
-5
4.51 x 10 cm
D) W
E) W
F) W
=
=
=
-5
3.76 × 10 cm
3.26 x 10-5 cm
Transcribed Image Text:Problem 2(a) Consider a gallium arsenide pn junction at T = 300 K with doping concentrations of Na = 1 X 10¹8 cm-³ and Nd = 1 X 10¹6 cm-³. Determine the total space charge width -5 A) W = 6.04 × 107 cm = 4.33 × 10-5 cm B) W = -5 C) W = 2.78 x 107 cm -5 4.51 x 10 cm D) W E) W F) W = = = -5 3.76 × 10 cm 3.26 x 10-5 cm
Problem 2(b)
Consider a gallium arsenide pn junction at T = 300 K
with doping concentrations of Na = 1 X 10¹8 cm-³ and
Nd = 1 X 10¹6 cm-³.
Use the space charge width from 2(a) and
determine the magnitude of the maximum electric
field
A) |Emax = 5.92 x 104 V/cm
Emax 4.13 x 104 V/cm
=
Emax 4.99 × 104 V/cm
Emax = 3.11 x 104 V/cm
Emax = 3.45 x 104 V/cm
Emax = 2.10 x 104 V/cm
B)
C)
D)
E)
F)
=
Transcribed Image Text:Problem 2(b) Consider a gallium arsenide pn junction at T = 300 K with doping concentrations of Na = 1 X 10¹8 cm-³ and Nd = 1 X 10¹6 cm-³. Use the space charge width from 2(a) and determine the magnitude of the maximum electric field A) |Emax = 5.92 x 104 V/cm Emax 4.13 x 104 V/cm = Emax 4.99 × 104 V/cm Emax = 3.11 x 104 V/cm Emax = 3.45 x 104 V/cm Emax = 2.10 x 104 V/cm B) C) D) E) F) =
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