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Description

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 (1-20 of 336) feed

  1. BME 695L Special Lecture 4: Atomic Force Microscopy (AFM) for Nanomedical Systems (cells and nanoparticles)

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    02 Dec 2011 | Online Presentations | Contributor(s): Helen McNally

    Guest lecturer: Helen McNally

    http://nanohub.org/resources/12625

  2. Tutorial 1: Atomistic Material Science - ab initio simulations of materials

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    03 Nov 2011 | Online Presentations | Contributor(s): Alejandro Strachan

    This lecture introduces first principles electronic structure calculations of materials properties. It describes the approximations made to the many-body Schrodinger equation in Hartree Fock and …

    http://nanohub.org/resources/11917

  3. Tutorial 2: Atomistic Material Science - Molecular Dynamics simulations of materials

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    03 Nov 2011 | Online Presentations | Contributor(s): Alejandro Strachan

    This lecture introduces the concept of molecular dynamics (MD) simulations of materials focusing on the physics and approximations underlying the simulations and interpretation of their results.

    http://nanohub.org/resources/11918

  4. BME 695L Special Lecture 2: X-ray Photoelectron Spectroscopy (XPS) in Biologically-Relevant Applications

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    01 Nov 2011 | Online Presentations | Contributor(s): Dmitry Zemlyanov

    Guest lecturer: Dmitry Zemlyanov

    http://nanohub.org/resources/12393

  5. Experiments and Models Regarding Strain Dependent Thermal Conductivity and Strength at the Nanoscale and Microscale

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    22 Sep 2011 | Online Presentations | Contributor(s): Vikas Tomar

    Silicon micro- and nano-structures are essential in today’s integrated circuits and sensors. The functioning and performance of such devices are highly affected by thermal properties. Due to the …

    http://nanohub.org/resources/11603

  6. Mesoscopic Simulations of Nitromethane

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    22 Sep 2011 | Online Presentations

    We present recent developments on the dissipative particle model that allow simulating the physico-chemical behavior of a molecular material at the mesoscale level. Several ingredients have been …

    http://nanohub.org/resources/12037

  7. The Thermal Measurements Database

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    14 Sep 2011 | Online Presentations | Contributor(s): Timothy S Fisher, Ann Christine Catlin

    Experimental data for thermal materials is obtained using various test methods under a set of conditions. A measurement type can be tested using many different methods, and a single method can be …

    http://nanohub.org/resources/12052

  8. Development of the ReaxFF reactive force fields and applications to combustion, catalysis and material failure

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    12 Sep 2011 | Online Presentations | Contributor(s): Adri van Duin

    This lecture will describe how the traditional, non-reactive FF-concept can be extended for application including reactive events by introducing bond order/bond distance concepts. Furthermore, it …

    http://nanohub.org/resources/11774

  9. Self-assembled Coordination Architectures: Lessons from Nature

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    12 Jul 2011 | Online Presentations | Contributor(s): Makoto Fujita

    This lecture is part of the 28th Annual H.C. Brown Lectures in Organic Chemistry.

    http://nanohub.org/resources/11445

  10. How to Turn Graphene into a Robust Topological Insulator Using Adatoms

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    12 Jul 2011 | Online Presentations | Contributor(s): Jason Alicea

    In this talk I will discuss a recent proposal for generating a robust TI state in a more readily available two-dimensional system -- graphene.

    http://nanohub.org/resources/11607

  11. CHM 696 Lecture 13: Optical Properties of Metal Nanoparticles and Nanoparticle Assemblies III

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    02 Jun 2011 | Online Presentations | Contributor(s): Alexander Wei

    http://nanohub.org/resources/11365

  12. CHM 696 Lecture 14: Semiconductor Nanoparticles, Nanorods, and Nanowires: Properties and Applications I

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    02 Jun 2011 | Online Presentations | Contributor(s): Alexander Wei

    http://nanohub.org/resources/11369

  13. CHM 696 Lecture 15: Semiconductor Nanoparticles, Nanorods, and Nanowires: Properties and Applications II

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    02 Jun 2011 | Online Presentations | Contributor(s): Alexander Wei

    http://nanohub.org/resources/11373

  14. NanoDays - Metamaterials, Transformation Optics and Cloaking

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    13 May 2011 | Online Presentations | Contributor(s): Vladimir M. Shalaev

    Purdue NanoDays Purdue University Office of Engagement NANOVIS Incorporated Purdue Research Park Intel Corporation nano Professor Verso Paper Corp Purdue University Discover Park Qdoba …

    http://nanohub.org/resources/11302

  15. NanoDays - Artificial Photosynthesis with Biomimetic Nanomaterials: Self-Repairing Solar Cells

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    05 May 2011 | Online Presentations | Contributor(s): Jong Hyun Choi

    Purdue NanoDays Purdue University Office of Engagement NANOVIS Incorporated Purdue Research Park Intel Corporation nano Professor Verso Paper Corp Purdue University Discover Park Qdoba …

    http://nanohub.org/resources/11235

  16. NanoDays - NanoTrees: Making Paper Stronger than Steel

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    05 May 2011 | Online Presentations | Contributor(s): Robert J. Moon

    Purdue NanoDays Purdue University Office of Engagement NANOVIS Incorporated Purdue Research Park Intel Corporation nano Professor Verso Paper Corp Purdue University Discover Park Qdoba …

    http://nanohub.org/resources/11237

  17. CHM 696 Lecture 12: Optical Properties of Metal Nanoparticles and Nanoparticle Assemblies II

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    05 May 2011 | Online Presentations | Contributor(s): Alexander Wei

    http://nanohub.org/resources/11240

  18. Introduction to Birck Scanning Probe Microscopy Center

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    03 May 2011 | Online Presentations | Contributor(s): Xin Xu

    This presentation gives an introduction to the AFM facility and AFM related research being conducted in Birck nanotechnology center (BNC), and also some useful AFM resources.

    http://nanohub.org/resources/11015

  19. AFM Metrology of Cellulose Nanocrystals

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    03 May 2011 | Online Presentations | Contributor(s): Robert J. Moon, Ryan Wagner

    This talk discusses the characterization of cellulose nanocrystals via atomic force microscopy.

    http://nanohub.org/resources/11019

  20. Electronic Characterization of Materials Using Conductive AFM

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    03 May 2011 | Online Presentations | Contributor(s): Amir Moshar

    Purdue University Discovery Park, Asylum Research

    http://nanohub.org/resources/11020

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