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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.
ME 597 Lecture 4: How to Make an STM
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13 Oct 2009 | Online Presentations | Contributor(s): Ron Reifenberger
Topics: Early Successes How to Make an STM G. Binning, H. Rohrer, Ch. Gerber, E. Weibel, “7x7 Reconstruction of Si(111) Resolved in Real Space”, Phys. Rev. Lett. 50, 120 (1983)
ME 597 Lecture 3: Quantum Tunneling/The STM
08 Oct 2009 | Online Presentations | Contributor(s): Ron Reifenberger
Topics: Quantum Tunneling The STM – basic idea Recommended Reading: See References below. G. Binnig, H. Rohrer, Ch. Gerber, E. Weibel, “Tunneling through a controllable vacuum …
Metal Oxide Nanowires as Gas Sensing Elements: from Basic Research to Real World Applications
21 Sep 2009 | Online Presentations | Contributor(s): Andrei Kolmakov
Quasi 1-D metal oxide single crystal chemiresistors are close to occupy their specific niche in the real world of solid state sensorics. Potentially, the major advantage of this kind of sensors with …
ME 597 Lecture 2: Electron States in Solids-Density of States
09 Sep 2009 | Online Presentations | Contributor(s): Ron Reifenberger
Note: This lecture has been revised since its original presentation. Topics: Electron States in Solids – Bloch Functions Kronig-Penney Model Density of States
ME 597 Lecture 1: Introduction to Basic Quantum Mechanics
01 Sep 2009 | Online Presentations | Contributor(s): Ron Reifenberger
Note: This lecture has been revised since its original presentation. Topics: Introduction to Basic Quantum Mechanics Energy States in Periodic Crystals Course is dual listed as Physics …
ME 597 Introductory Lecture
Course is dual listed as Physics 570.
Experiment vs. Modelling: What's the problem?
10 Aug 2009 | Online Presentations | Contributor(s): William L. Barnes
Progress in plasmonics has been greatly assisted by developments in experimental techniques and in numerical modelling. This talk will look at some of the difficulties that emerge when …
Nanotribology, Nanomechanics and Materials Characterization Studies
08 Jun 2009 | Online Presentations | Contributor(s): Bharat Bhushan
Fundamental nanotribological studies provide insight to molecular origins of interfacial phenomena including adhesion, friction, wear and lubrication. Friction and wear of lightly loaded micro/nano …
Illinois CEE 595 - Structural Engineering Seminar Series Lecture 1
07 Jun 2009 | Online Presentations | Contributor(s): Paramita Mondal
This is the first lecture from the Fall 2008 Structural Engineering Seminar Series (CEE 595). The presenter is Assistant Professor Paramita Mondal. In this lecture, she discusses her work in the …
Renewable Solar Energy: Has the Sun Finally Risen on Photovoltaics?
10 Apr 2009 | Online Presentations | Contributor(s): Mark R. Pinto
After a review of the overall renewable energy landscape, including the central role of economics, we present here the case that PV is on the verge of becoming a major source of electrical power …
Illinois PHYS 466, Lecture 13: Brownian Dynamics
08 Apr 2009 | Online Presentations | Contributor(s): David M. Ceperley
Brownian Dynamics Let’s explore the connection between Brownian motion and Metropolis Monte Carlo. Why? Connection with smart MC Introduce the idea of kinetic Monte Carlo Get rid of …
Materials Science Concepts
31 Mar 2009 | Online Presentations | Contributor(s): Vladimir I. Gavrilenko
Aluminum: a safe, economical, high energy density material for energy storage, transport and splitting water to make hydrogen on demand
30 Mar 2009 | Online Presentations | Contributor(s): Jerry M. Woodall
In 1968, a team lead by the author discovered that liquid gallium saturated with aluminum at room temperature would split water into hydrogen gas, alumina and heat. More recently his current team has …
Illinois PHYS 466, Lecture 12: Random Walks
30 Mar 2009 | Online Presentations | Contributor(s): David M. Ceperley
Random Walks Today we will discuss Markov chains (random walks), detailed balance and transition rules. These methods were introduced by Metropolis et al. in 1953 who applied it to a hard …
Energy and Nanoscience A More Perfect Union
29 Mar 2009 | Online Presentations | Contributor(s): Mark A. Ratner
Huge problems of energy and sustainability confront the science/engineering community, mankind, and our planet. The energy problem comes in many dimensions, including supply, demand, conservation, …
Illinois PHYS 466, Lecture 11: Importance Sampling
20 Mar 2009 | Online Presentations | Contributor(s): David M. Ceperley
Importance sampling Today We will talk about the third option: Importance sampling and correlated sampling Content: Importance Sampling Finding Optimal p*(x) for Sampling Example of …
Illinois PHYS 466, Lecture 10: Sampling
20 Mar 2009 | Online Presentations | Contributor(s): David M. Ceperley, Omar N Sobh
Fundamentals of Monte Carlo What is Monte Carlo? Named at Los Alamos in 1940’s after the casino. Any method which uses (pseudo)random numbers> as an essential part of the algorithm. …
Illinois PHYS 466, Lecture 8: Temperature and Pressure Controls
03 Mar 2009 | Online Presentations | Contributor(s): David M. Ceperley
Temperature and Pressure Controls Content: Constant Temperature MD Quench method Brownian dynamics/Anderson thermostat Nose-Hoover thermostat (FS 6.1.2) Nose-Hoover thermodynamics …
Illinois PHYS 466, Lecture 6: Scalar Properties and Static Correlations
Scalar Properties, Static Correlations and Order Parameters What do we get out of a simulation? Static properties: pressure, specific heat, etc. Density Pair correlations in real space and …
Illinois PHYS 466, Lecture 7: Dynamical Correlations & Transport Coefficients
02 Mar 2009 | Online Presentations | Contributor(s): David M. Ceperley
Dynamical correlations and transport coefficients Dynamics is why we do molecular dynamics! Perturbation theory Linear-response theory Diffusion constants, velocity-velocity auto correlation …
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