EE372 Assignment 1
due Sept. 22, 2010 in class
You should read Chapter 3.1 of the textbook and then answer the following questions. 1. Photons a) A 50 kW FM radio station transmits annoying pop music
1. Photoelectric
Effect
a) Draw typical I-V curves obtained from the photoelectric effect experiment. Draw one set of curves for two different wavelengths of light and another set of curves for two di
1. Photo-electric Effect A multi-alkali metal is used as the photocathode material in a photo-emissive electron tube. The longest wavelength radiation that gives photo-emitted electrons is 510 nm. If
October 31, 2010 (B00!)
University of Saskatchewan
Department of Electrical Engineering
EE372 Electronic Materials and Devices
Midterm Examination
Professor Robert E. Johanson
PART A
(closed book)
i:omoL [£599va 38 Skalok/ ibHLPan 5107; W
gwé in JZLWW Fgm (mm).
X 3;
Re.
LTI 9de is 81:80 s+ab\q,- H31: W Molt {xx/d:
R0 [SEE HA-NbOUT)
_C7ivoJ/L W Wsa as) 6bHuz/ Egg/3m, R-H mm
: (Kt/n 0v VEg
EE372 Assignment 2
due Sept. 29, 2010 in class
You should read Chapters 3.2 through 3.4 of the textbook and review your lecture notes on Bohrs model of the hydrogen atom and then answer the following
EE372 Assignment 3
due Oct. 6, 2010 in class
You should read Chapters 3.5 through 3.7 of the textbook and then answer the following questions. 1. Tunneling a) A tunnel barrier is 5 eV high. What shoul
EE372 Assignment 4
due Oct. 13, 2010 in class
You should read sections 3.7 to 3.9 of the textbook and then answer the following questions. 1. Nanoparticles A hot research topic at the moment are nanop
EE372 Assignment 5
due Oct. 20, 2010 in class
You should begin reading chapter 4 of the textbook; the questions below are based on chapter 3. 1. Ionization energy and screening In a multi-electron ato
Chapter 5
Chapter 5
5.1 Bandgap and photodetection
a. Determine the maximum value of the energy gap that a semiconductor, used as a photoconductor, can have if it is to be sensitive to yellow light (6
Chapter 5
Chapter 5
5.9 Compensation doping in Si
a. A Si wafer has been doped n-type with 1017 As atoms cm-3. 1. Calculate the conductivity of the sample at 27 C. 2. Where is the Fermi level in this
EE372 Assignment 1 Solutions 1. Photons a) A 50 kW FM radio station transmits annoying pop music at 95.1 MHz. What is the energy of each photon at this frequency in eV? Calculate the number of photons
EE372 Assignment 2 Solutions 1. DeBroglie waves a) Certain scientic installations produce so-called thermal neutrons for neutron diraction experiments. Such neutrons are in thermal equilibrium with th
EE372 Assignment 3 Solutions 1. Tunneling a) A tunnel barrier is 5 eV high. What should the width be so that the transmission probability is 1010 for electrons with 2 eV of energy? b) A tunnel barrier
EE372 Assignment 4 Solutions 1. Nanoparticles A hot research topic at the moment are nanoparticles, very small grains of various semiconductors. An electron that is inside a nanoparticle is equivalent
EE372 Assignment 5 Solutions 1. Ionization energy and screening In a multi-electron atom, inner electrons partially screen the nuclear charge so that outer electrons feel a weakened Coulomb force. One