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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 (201-220 of 340)

  1. BNC Research Review: The Birck Nanotechnology Center-Progress, Opportunitiees, and Challenges

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    04 Jun 2008 | Online Presentations | Contributor(s): Timothy D. Sands

    This presentation is part of a collection of presentations describing the projects, people, and capabilities enhanced by research performed in the Birck Center, and a look at plans for the upcoming …

    https://nanohub.org/resources/4707

  2. MSE 640 Lecture 15: Theory of high resolutiion TEM, Part 1

    This resource has a 6.5 Ranking

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    29 May 2008 | Online Presentations | Contributor(s): Eric Stach

    https://nanohub.org/resources/4641

  3. MSE 640 Lecture 14: Overview of Phase Contrast & High resolution TEM

    This resource has a 7.0 Ranking

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    29 May 2008 | Online Presentations | Contributor(s): Eric Stach

    https://nanohub.org/resources/4640

  4. MSE 640 Lecture 13: Diffraction contrast imaging

    This resource has a 6.9 Ranking

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    29 May 2008 | Online Presentations | Contributor(s): Eric Stach

    Weak beam dark field imaging, Simulation of diffraction contrast

    https://nanohub.org/resources/4639

  5. MSE 640 Lecture 12: Diffraction contrast imaging, Part 1

    This resource has a 6.5 Ranking

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    29 May 2008 | Online Presentations | Contributor(s): Eric Stach

    Review: Planar faults, Strain fields -generally, Dislocations, Coherent precipitates

    https://nanohub.org/resources/4637

  6. MSE 640 Lecture 12: Diffraction contrast imaging, Part 2

    This resource has a 6.1 Ranking

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    29 May 2008 | Online Presentations | Contributor(s): Eric Stach

    Review: Planar faults, Strain fields -generally, Dislocations, Coherent precipitates

    https://nanohub.org/resources/4638

  7. MSE 640 Lecture 11: Diffraction contrast imaging

    This resource has a 6.4 Ranking

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    29 May 2008 | Online Presentations | Contributor(s): Eric Stach

    Thickness fringes, Bend contours, Planar faults

    https://nanohub.org/resources/4636

  8. Nanoscale Opto Thermo Electric Energy Conversion Devices

    This resource has a 8.5 Ranking

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    28 May 2008 | Online Presentations | Contributor(s): Ali Shakouri

    We review solid-state devices that allow direct conversion of heat into electricity. We describe fundamental and practical limits of conventional thermoelectric materials. Novel metal-semiconductor …

    https://nanohub.org/resources/4665

  9. Basics of Particle Adhesion

    This resource has a 7.7 Ranking

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    21 May 2008 | Online Presentations | Contributor(s): Stephen P. Beaudoin

    This presentation will describe the adhesion of rough, asymmetric particles with micro- to nano-scale dimension to solid surfaces. These adhesion processes are of great interest in microelectronics …

    https://nanohub.org/resources/3264

  10. In Search of the Perfect Semiconductor Photon Detector

    This resource has a 7.7 Ranking

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    19 May 2008 | Online Presentations | Contributor(s): Peter Y. Yu

    Photon detectors have many important applications, such as in heat sensing, digital cameras, solar cells and x-ray and gamma-ray detection. So far, the most common detectors are based on elemental …

    https://nanohub.org/resources/4397

  11. Nanotechnology Research Opportunities within the Forest Products Industry

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    28 Apr 2008 | Online Presentations | Contributor(s): Robert J. Moon

    This talk will provide an overview of research opportunities within forest products industry. There will be a general description of the anatomical and chemical structure of wood, their connection …

    https://nanohub.org/resources/4448

  12. MSE 640 Lecture 5: Diffraction from Crystals "Structure Factor", Part 2

    This resource has a 8.0 Ranking

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    18 Mar 2008 | Online Presentations | Contributor(s): Eric Stach

    https://nanohub.org/resources/4155

  13. The Novel Nanostructures of Carbon

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    28 Feb 2008 | Online Presentations | Contributor(s): Gene Dresselhaus

    A brief review will be given of the physical underpinnings of carbon nanostructures that were developed over the past 60 years, starting with the electronic structure and physical properties of …

    https://nanohub.org/resources/3997

  14. MSE 640 Lecture 2: Elastic Scattering, Part 1

    This resource has a 9.0 Ranking

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    25 Feb 2008 | Online Presentations | Contributor(s): Eric Stach

    https://nanohub.org/resources/4094

  15. The Potential of Nanostructured Materials to Address the Challenge of a Sustainable Energy Resource

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    14 Feb 2008 | Online Presentations | Contributor(s): Mildred S. Dresselhaus

    An overview is presented on the grand challenges to the science community in the next few decades in meeting global energy needs for the 21st century. Major advances in our present capabilities will …

    https://nanohub.org/resources/3996

  16. Heat Transfer across Solid Contacts Enhanced with Nanomaterials

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    11 Feb 2008 | Online Presentations | Contributor(s): Timothy S Fisher

    This presentation will describe thermal transport processes at solid-solid material interfaces. An overview of applications in the electronics industry will serve to motivate the subject, and then …

    https://nanohub.org/resources/3985

  17. MSE 582 Lecture 1: Introduction

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    28 Jan 2008 | Online Presentations | Contributor(s): Eric Stach

    https://nanohub.org/resources/3778

  18. Lecture 2: total energy and force calculations

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

    This lecture will describe the various models used to describe the interactions between atoms in a wide range of materials including metals, ceramics and soft materials as well as new recent …

    https://nanohub.org/resources/3678

  19. Lecture 1: the theory behind molecular dynamics

    This resource has a 9.4 Ranking

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    09 Jan 2008 | Online Presentations | Contributor(s): Alejandro Strachan

    The first lecture will provide a brief description of classical mechanics and statistical mechanics necessary to understand the physics and approximations behind MD and how to correctly …

    https://nanohub.org/resources/3677

  20. Lecture 3: simulation details and coarse grain approaches

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    09 Jan 2008 | Online Presentations | Contributor(s): Alejandro Strachan

    The last presentation will describe simulation techniques to simulate materials under isothermal and isobaric conditions. We will also describe coarse grain or mesodynamical approaches (where …

    https://nanohub.org/resources/3679

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