Leader: Dr G.A.J. Amaratunga
14 lectures (including examples) + coursework
Timing: Michaelmas term
Prerequisites: Part IIA Paper E3 helpful.
AIMS
The aim of this module is to introduce the basic quantum mechanical principles which underpin the design and operation of modern electronic devices. Mathematical formalism is kept to the minimum required for quantitative analysis of solid state devices. No previous knowledge of quantum phenomena is assumed.
LECTURE SYLLABUS
Solid state electronics and quantum electronics
Quanta of energy and wave particle duality (1L, Dr M.E. Welland).
Wave equation, momentum, energy and Schrodinger's equation, probability density and normalisation (2L, Dr M.E. Welland).
QM expression for electron current, solutions to Schrodinger equation (finite potential well, infinite barrier-tunnelling) (3L, Dr G.A.J. Amaratunga).
Electrons in crystals, Kronig Penney model, energy bands, effective mass and carrier transport, density of states (4L, Dr M.E. Welland).
Lectures on basic device concepts utilizing particle and wave nature of electrons: Quantum wells, 2-D electron gas and high electron mobility transistors (HEMT), resonant tunnelling, ballistic transistors, optically absorbing and radiating devices (4L, Dr G.A.J. Amaratunga).
COURSEWORK
2 one-hour audio-visual sessions illustrating material from the lectures.
2 hour interactive computer simulation on aspects of solid state and quantum electronics. A formal report of the simulation is required (approximately four hours' work).
OBJECTIVES
On completion of the module students should:
* Be able to explain basic principles of quantum mechanics;
* Understand how wave phenomena of electrons can be predicted;
* Appreciate how nanoscale engineering allows for wave base elctronic devices to be realised;
* Prepare for design and research in solid state electronic/opto-electronic devices.
ASSESSMENT
Material Format Timing Marks
Lecture syllabus Written exam (1.5 hours) Start of Lent term 75%
Coursework Report on simulation study End of Michaelmas term 25%
REFERENCES
Authors Title
C.U.E.D. Library Shelfmark
LANDSHOFF, P. and METHERELL, A. SIMPLE QUANTUM PHYSICS Cambridge University Press, 1979
LG 282
GREENHOW, R.C. INTRODUCTORY QUANTUM MECHANICS: A COMPUTER ILLUSTRATED TEXT Adam Hilger, 1990
ELECTRICAL and INFORMATION SCIENCES TRIPOS PART II
ENGINEERING TRIPOS PART IIB
1995/96