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Nanotechnology bears the promise of engineering at an atomic
scale--of assembling atoms in arrangements that are completely
unnatural, thereby creating materials with properties that have
never been seen before. This may sound like science fiction,
but it has been going on for more than 30 years, since the
invention of Molecular Beam Epitaxy (MBE). MBE provides a way
of growing a block of material one sheet of atoms at a time.
By mixing different types of atoms in various combinations,
it is possible to "tune" the properties of the resulting material.
For example, the laser diode in your CD player is probably made
from silicon. It shines a particular wavelength of light
based on the energy gap between the conduction and valence
bands in silicon. That same laser diode could be "tuned" to
emit a different wavelength by building it with a new material
engineered to have a different band gap.
MBE is just one technique for building materials on an atomic
scale. Many other techniques are also under investigation,
including dragging atoms via a Scanning Tunneling Microscope (STM)
tip, and Self-Assembled Monolayers (SAM).
Learn more about material science from the resources available
on this site, listed below.
More information on Material science can be found here.
Illinois PHYS 466, Lecture 5: Interatomic Potentials
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18 Feb 2009 | Online Presentations | Contributor(s): David M. Ceperley
Interatomic Potentials Before we can start a simulation, we need the model! Interaction between atoms and molecules is determined by quantum mechanics But we don’t know V(R)! Content: …
Illinois ECE 598EP Lecture 3.1 - Hot Chips: Electrons and Phonons
17 Feb 2009 | Online Presentations | Contributor(s): Eric Pop, Omar N Sobh
Electrons and Phonons
Illinois Center for Cellular Mechanics: Discovery through the Computational Microscope
11 Feb 2009 | Online Presentations | Contributor(s): Klaus Schulten
Computational Microscope All-atom molecular dynamics simulations have become increasingly popular as a tool to investigate protein function and dynamics. However, researchers are usually concerned …
Illinois PHYS 466, Lecture 4: Molecular Dynamics
05 Feb 2009 | Online Presentations | Contributor(s): David M. Ceperley
Molecular Dynamics What to choose in an integrator The Verlet algorithm Boundary Conditions in Space and time Reading assignment: Frenkel and Smit Chapter 4 Content: …
Illinois ECE 598EP Lecture 1 - Hot Chips: Atoms to Heat Sinks
29 Jan 2009 | Online Presentations | Contributor(s): Eric Pop
Introduction Content: The Big Picture Another CPU without a Heat Sink Thermal Management Methods Impact on People and Environment Packaging cost IBM S/390 refrigeration and …
Illinois PHYS 466, Lecture 3: Basics of Statistical Mechanics
31 Jan 2009 | Online Presentations | Contributor(s): David M. Ceperley
Basics of Statistical Mechanics Review of ensembles Microcanonical, canonical, Maxwell-Boltzmann Constant pressure, temperature, volume,… Thermodynamic limit Ergodicity …
Illinois MatSE 280 Introduction to Engineering Materials, Lecture 9: Mechanical Failures
09 Jan 2009 | Online Presentations | Contributor(s): Duane Douglas Johnson, Omar N Sobh
Mechanical Failure: temperature, stress, cyclic and loading effect ISSUES TO ADDRESS... How do cracks that lead to failure form? How is fracture resistance quantified? How do the fracture …
Illinois PHYS 466, Lecture 1: Introduction
28 Jan 2009 | Online Presentations | Contributor(s): David M. Ceperley
Introduction to Simulation Content: Why do simulations? Moore's law Two Simulation Modes Dirac, 1929 Challenges of Simulation: Physical and mathematical underpinnings …
Microstructural Design of Electrically Active Materials and Devices Through Computational Modeling: The OOF Project
20 Jan 2009 | Online Presentations | Contributor(s): R. Edwin Garcia
We present an overview of a public domain program, the Object Oriented Finite Element analysis (OOF), which predicts macroscopic behavior, starting from an image of the microstructure and ending with …
DragonflyTV Nano – Using the Power of Television to Introduce Middle School Children to Nanotechnology
15 Jan 2009 | Online Presentations | Contributor(s): Richard Hudson, Joan Freese, Angie Prindle, Lisa Regalla
DragonflyTV is a PBS science series for children, broadcast nationwide and on the internet. DragonflyTV models authentic science inquiry through its unique approach: In each episode, ordinary …
The Optical Freqency Comb: A Remarkable Tool for Metrology, Science and Medical Diagnostics
31 Dec 2008 | Online Presentations | Contributor(s): John L. Hall
The Optical Frequency Comb concept and technology exploded in 1999-2000 from the synthesis of advances in independent fields of Laser Stabilization, UltraFast Lasers, and NonLinear Optical Fibers. …
Illinois MatSE 280 Introduction to Engineering Materials, Lecture 7: Mechanical Properties
15 Dec 2008 | Online Presentations | Contributor(s): Duane Douglas Johnson, Omar N Sobh
Mechanical Properties Why Mechanical Properties? Need to design materials that will withstand applied load and in-service uses for ... Space exploration, Bridges for autos and people, …
Nanoparticle and Colloidal Simulations with Molecular Dynamics
05 Dec 2008 | Online Presentations | Contributor(s): Steve Plimpton
Modeling nanoparticle or colloidal systems in a molecular dynamics (MD) code requires coarse-graining on several levels to achieve meaningful simulation times for study of rheological and other …
Illinois MATSE 280 Introduction to Engineering Materials, Lecture 6: Diffusion in Solids
19 Nov 2008 | Online Presentations | Contributor(s): Duane Douglas Johnson, Omar N Sobh
Diffusion in Solids ISSUES TO ADDRESS... How does diffusion occur? How can the rate of diffusion be predicted forsome simple cases? How does diffusion depend on structure and temperature …
Illinois MATSE 280 Introduction to Engineering Materials, Lecture 5 - Part 2 : Line Defects, Dislocations and their Scale
14 Nov 2008 | Online Presentations | Contributor(s): Duane Douglas Johnson, Omar N Sobh
Imperfections in Solids (Continue) Content: Line Defects: Dislocations and their Scale Line Defects: Dislocations Incremental Slip and Bond Breaking Edge Dislocations Exiting Crystal Form …
Illinois MATSE 280 Introduction to Engineering Materials, Lecture 5 - Part 1 : Imperfections in Solids
Imperfections in Solids ISSUES TO ADDRESS... What types of defects arise in solids? Describe them Can the number and type of defects be varied and controlled? How do defects affect …
MSE 597G Lecture 4: Interatomic potentials I
14 Nov 2008 | Online Presentations | Contributor(s): Alejandro Strachan
Interatomic potentials: pairwise potentials.
MSE 597G Lecture 3: Statistical Mechanics II
Basic physics: statistical mechanics, Algorithms: Integrating the equations of motion.
Running MD on the nanoHUB: The nano-MATERIALS Simulation Toolkit
13 Nov 2008 | Online Presentations | Contributor(s): Alejandro Strachan
A quick demostration of the nanoHUB tool: nano-Materials Simulation Toolkit.
MSE 597G Lecture 5: Interatomic potentials II
Embedded atom model for metals, Three body terms for semiconductors: Stillinger-Weber, Electrostatics and Covalent interactions.
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