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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.

Online Presentations (161-180 of 340)

  1. Illinois PHYS 466, Lecture 5: Interatomic Potentials

    This resource has a 5.3 Ranking

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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: …

    https://nanohub.org/resources/6294

  2. Illinois ECE 598EP Lecture 3.1 - Hot Chips: Electrons and Phonons

    This resource has a 5.4 Ranking

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    17 Feb 2009 | Online Presentations | Contributor(s): Eric Pop, Omar N Sobh

    Electrons and Phonons

    https://nanohub.org/resources/6270

  3. Illinois Center for Cellular Mechanics: Discovery through the Computational Microscope

    This resource has a 5.0 Ranking

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    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 …

    https://nanohub.org/resources/6253

  4. Illinois PHYS 466, Lecture 4: Molecular Dynamics

    This resource has a 5.5 Ranking

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    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: …

    https://nanohub.org/resources/6239

  5. Illinois ECE 598EP Lecture 1 - Hot Chips: Atoms to Heat Sinks

    This resource has a 5.8 Ranking

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    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 …

    https://nanohub.org/resources/6184

  6. Illinois PHYS 466, Lecture 3: Basics of Statistical Mechanics

    This resource has a 5.7 Ranking

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    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 …

    https://nanohub.org/resources/6198

  7. Illinois MatSE 280 Introduction to Engineering Materials, Lecture 9: Mechanical Failures

    This resource has a 10.0 Ranking

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    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 …

    https://nanohub.org/resources/6108

  8. Illinois PHYS 466, Lecture 1: Introduction

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    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 …

    https://nanohub.org/resources/6182

  9. Microstructural Design of Electrically Active Materials and Devices Through Computational Modeling: The OOF Project

    This resource has a 6.0 Ranking

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    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 …

    https://nanohub.org/resources/6134

  10. DragonflyTV Nano – Using the Power of Television to Introduce Middle School Children to Nanotechnology

    This resource has a 6.0 Ranking

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    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 …

    https://nanohub.org/resources/6123

  11. The Optical Freqency Comb: A Remarkable Tool for Metrology, Science and Medical Diagnostics

    This resource has a 6.2 Ranking

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    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. …

    https://nanohub.org/resources/6040

  12. Illinois MatSE 280 Introduction to Engineering Materials, Lecture 7: Mechanical Properties

    This resource has a 7.8 Ranking

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    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, …

    https://nanohub.org/resources/6052

  13. Nanoparticle and Colloidal Simulations with Molecular Dynamics

    This resource has a 7.1 Ranking

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    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 …

    https://nanohub.org/resources/5668

  14. Illinois MATSE 280 Introduction to Engineering Materials, Lecture 6: Diffusion in Solids

    This resource has a 7.9 Ranking

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    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 …

    https://nanohub.org/resources/5888

  15. Illinois MATSE 280 Introduction to Engineering Materials, Lecture 5 - Part 2 : Line Defects, Dislocations and their Scale

    This resource has a 7.1 Ranking

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    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 …

    https://nanohub.org/resources/5864

  16. Illinois MATSE 280 Introduction to Engineering Materials, Lecture 5 - Part 1 : Imperfections in Solids

    This resource has a 8.7 Ranking

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    14 Nov 2008 | Online Presentations | Contributor(s): Duane Douglas Johnson, Omar N Sobh

    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 …

    https://nanohub.org/resources/5845

  17. MSE 597G Lecture 4: Interatomic potentials I

    This resource has a 7.0 Ranking

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    14 Nov 2008 | Online Presentations | Contributor(s): Alejandro Strachan

    Interatomic potentials: pairwise potentials.

    https://nanohub.org/resources/5776

  18. MSE 597G Lecture 3: Statistical Mechanics II

    This resource has a 7.0 Ranking

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    14 Nov 2008 | Online Presentations | Contributor(s): Alejandro Strachan

    Basic physics: statistical mechanics, Algorithms: Integrating the equations of motion.

    https://nanohub.org/resources/5775

  19. Running MD on the nanoHUB: The nano-MATERIALS Simulation Toolkit

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    13 Nov 2008 | Online Presentations | Contributor(s): Alejandro Strachan

    A quick demostration of the nanoHUB tool: nano-Materials Simulation Toolkit.

    https://nanohub.org/resources/5843

  20. MSE 597G Lecture 5: Interatomic potentials II

    This resource has a 6.8 Ranking

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    13 Nov 2008 | Online Presentations | Contributor(s): Alejandro Strachan

    Embedded atom model for metals, Three body terms for semiconductors: Stillinger-Weber, Electrostatics and Covalent interactions.

    https://nanohub.org/resources/5777

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