SEMICONDUCTOR AND
DEVICE PHYSICS:
A CONCISE INTRODUCTION
Neil Goldsman, Ph.D
June 12, 2015
Neil Goldsman
June 12, 2015
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Neil Goldsman
ii
Neil Goldsman
June 12, 2015
Preface
This text is meant for students starting to learn about semiconductor devices
and

2.6 Which of the following could NOT possibly be wavefunctions and why? Assume 1-D in each
case. (Here = imaginary number and = normalization constant.)
(a) () = for all .
(b) () = for values of between 2 and 8 cm, and () = 3.5 for values of
between 5 an

ENEE 313 Fall 2016
1. The wavefunction of a free-particle inside a one-dimensional box of length is given by,
(, ) =
1
()
Show that the expectation values of the energy and momentum of the particle are given
by,
+
=
1
=
0
=
()
1 ()
1

ENEE 313 Fall 2016
1. Streetman 3.19:
(a) Sketch and label the simplified band diagram of a semiconductor with a bandgap of
1.5 eV subjected to the following: From = 0 to 2 m the voltage is constant. From
= 2 m to 4 m, there is an electric field of 2 Vm

ENEE 313 Spring 2015
First Midterm Exam
March 24, 2015
Name:
Directions:
1) Write all your solutions on the space provided on the test questions.
2) Calculators of any type are allowed. Computers, tablets, and phones cannot be used
during the exam.
3) Thi

ENEE 313 Spring 2015
First Midterm Exam
March 24, 2015
Name:
Directions:
1) Write all your solutions on the space provided on the test questions.
2) Calculators of any type are allowed. Computers, tablets, and phones cannot be used
during the exam.
3) Thi

ENEE 313 Fall 2016
1. A GaAs quantum well will be used in the fabrication of an infrared laser with wavelength
= 1.55 . Modeling this quantum well as an infinite potential barrier, determine the
width of the quantum well. The effective mass of the electr

ENEE 313 Spring 2016
First Midterm Exam
March 8, 2016
Name:
Directions:
1) Write all your solutions on the space provided on the test questions.
2) Calculators of any type are allowed. Computers, tablets, and phones cannot be used
during the exam.
3) This

ENEE 313 Fall 2016
1. A one-dimensional potential energy barrier has height = 0.5 eV in the region 0.
The potential is zero in the region < 0.
(a) An electron with kinetic energy = 0.8 eV is incident on the barrier. Determine the
frequency, wavelength, an