Table of Contents
Quantum wells and modern electronics
Quantum wells and modern electronics
Wishes for devices
Basic function
Variable resistance
Crystals
Effects of periodicity (formal)
Effects of periodicity (intuitive)
In Crystals: atomic energy levels -> bands
Metals, semiconductors and insulators
GaAs band structure
Metals Insulators
Periodic table around semiconductors
Doping
good and bad of doping
p-n junction
Effect of external voltage (bias)
I-V characteristic
Metal Oxide Semiconductor Field Effect Transistor (MOSFET)
Metal Oxide Field Effect Transistor (MOS)
Near the SiO2-Si interface
Getting rid of impurities: selective doping
Molecular Beam Epitaxy (MBE)
Atomic layer by layer growth
Mobility
optical transitions
Some frequencies are more useful than others
Attenuation in optical fibers
Energy gaps and lattice parameters
Quantum well (QW)
The principle of a semiconductor QW
Absorption from 3D to 2D
The philisophy of semiconductor technology, a success story
So successful that also Britney Spears knows a lot about semiconductors
And now?
Quantum wires and quantum dots
Let’s nature help: look for self-organization
Wavefunction in quantum wires
Turn a failure into a success
Self-organized InAs quantum dots
Future
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Author: Annalisa fasolino
Email: fasolino@sci.kun.nl
Home Page: http://www.sci.kun.nl/tvs/people/fasolino.html/
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