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Tags: material science

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.

Resources

Tools

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Online Presentations

  • 10.0 Ranking Shalaev: Plasmonic Nanophotonics: Coupling ...

    Plasmonic Nanophotonics: Coupling Light to Nanostructure via Plasmons

    Type Online Presentations
    Contributor(s) Vladimir M. Shalaev
    Date 04 Oct. 2005
    Avg. Rating 5.0 out of 5 stars  (2)
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    The photon is the ultimate unit of information because it packages data in a signal of zero mass and has unmatched speed. The power of light is driving the photonicrevolution, and information technologies, which were formerly entirely electronic, are increasingly enlisting light to communicate and ...

  • 10.0 Ranking Raman: Atomic Force Microscopy

    Atomic Force Microscopy

    Type Online Presentations
    Contributor(s) Arvind Raman
    Date 29 Nov. 2005
    Avg. Rating 5.0 out of 5 stars  (1)
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    Atomic Force Microscopy is has become an indispensible tool in nanoscience for the fabrication, metrology, manipulation and property characterization of nanostructures. In this tutorial, we will review the physics of the interaction forces between the nanoscale tip and sample, the dynamics ...

  • 10.0 Ranking Reifenberger: A Primer on Scanning Tunneling ...

    A Primer on Scanning Tunneling Microscopy (STM)

    Type Online Presentations
    Contributor(s) Ron Reifenberger
    Date 04 Apr. 2006
    Avg. Rating 5.0 out of 5 stars  (3)
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    Scanning Probe Microscopes and their remarkable ability to provide three-dimensional maps of surfaces at the nanometer length scale have arguably been the most important tool in establishing the world-wide emergence of Nanotechnology. In this talk, the fundamental ideas behind the first scanning ...

  • 10.0 Ranking Sands: Nanotubes and Nanowires: ...

    Nanotubes and Nanowires: One-dimensional Materials

    Type Online Presentations
    Contributor(s) Timothy D. Sands
    Date 17 Jul. 2006
    Avg. Rating 5.0 out of 5 stars  (6)
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    What is a nanowire? What is a nanotube? Why are they interesting and what are their potential applications? How are they made? This presentation is intended to begin to answer these questions while introducing some fundamental concepts such as wave-particle duality, quantum confinement, the ...

  • 10.0 Ranking Cola: Highly Efficient Thermal ...

    Highly Efficient Thermal Transport: The Application of Carbon Nanotube Array Interfaces

    Type Online Presentations
    Contributor(s) Baratunde A. Cola
    Date 01 Feb. 2007
    Avg. Rating 5.0 out of 5 stars  (1)
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    Carbon nanotubes (CNTs) have received much attention in recent years for their extraordinary properties that through careful engineering may be leverage for the development of numerous advantageous applications. However, to date, only few CNT based applications exist in the market place. So when ...

  • 10.0 Ranking Strachan: Materials strength: does size ...

    Materials strength: does size matter? nanoMATERIALS simulation toolkit tutorial

    Type Online Presentations
    Contributor(s) Alejandro Strachan
    Date 01 Feb. 2007
    Avg. Rating 5.0 out of 5 stars  (2)
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    Molecular dynamics (MD) is a powerful technique to characterize the fundamental, atomic-level processes that govern materials behavior and is playing an important role in our understanding of the new phenomena that arises in nanoscale and nanostructured materials and result in their unique ...

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Courses

  • 9.4 Ranking Datta: Quantum Transport: Atom to ...

    Quantum Transport: Atom to Transistor

    Type Courses
    Contributor(s) Supriyo Datta
    Date 07 Aug. 2006
    Avg. Rating 5.0 out of 5 stars  (21)
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    The development of "nanotechnology" has made it possible to engineer materials and devices on a length scale as small as several nanometers (atomic distances are ~ 0.1 nm). The properties of such "nanostructures" cannot be described in terms of macroscopic parameters like mobility and diffusion ...

  • 8.8 Ranking Hersam: MSE 376 Nanomaterials

    MSE 376 Nanomaterials

    Type Courses
    Contributor(s) Mark Hersam
    Date 24 Oct. 2006
    Avg. Rating 0.0 out of 5 stars  (0)
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    "Nanomaterials," is an interdisciplinary introduction to processing, structure, and properties of materials at the nanometer length scale. The course will cover recent breakthroughs and assess the impact of this burgeoning field. Specific nanofabrication topics include epitaxy, beam ...

  • 6.2 Ranking Stach: MSE 582 Transmission Electron ...

    MSE 582 Transmission Electron Microscopy Skills

    Type Courses
    Contributor(s) Eric Stach
    Date 28 Jan. 2008
    Avg. Rating 0.0 out of 5 stars  (0)
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    ...

  • 6.1 Ranking Strachan: Lectures on Molecular Dynamics ...

    Lectures on Molecular Dynamics Modeling of Materials

    Type Courses
    Contributor(s) Alejandro Strachan
    Date 09 Jan. 2008
    Avg. Rating 0.0 out of 5 stars  (0)
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    Molecular dynamics simulations are playing an increasingly important role in many areas of science and engineering, from biology and pharmacy to nanoelectronics and structural materials. Recent breakthroughs in methodologies and in first principles-based interatomic potentials significantly ...

  • 1.2 Ranking   Curriculum on Nanotechnology

    Curriculum on Nanotechnology

    Type Courses
    Contributor(s)
    Date 27 Jan. 2005
    Avg. Rating 5.0 out of 5 stars  (1)
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    The NCN seeks to bring the new understanding emerging from research in nanoscience into the graduate and undergraduate curriculum. We are now at the dawn of what might be a new era in technology, but to exploit the opportunities that nanoscience is giving us, engineers will need to learn how to ...

Learning Modules

  • 7.7 Ranking Vasileska: PN Junction Theory and Modeling

    PN Junction Theory and Modeling

    Type Learning Modules
    Contributor(s) Dragica Vasileska
    Date 14 Sep. 2005
    Avg. Rating 5.0 out of 5 stars  (4)
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    Learn the basics of PN junction theory. Analyze step junctions and linearly-graded junctions both analytically and numerically. See how the depletion region gives rise to a built-in voltage, and also affects the capacitance under AC analysis. Study DC current-voltage characteristics, including ...

  • 6.1 Ranking Sinnott: Introduction to Nanofluidics

    Introduction to Nanofluidics

    Type Learning Modules
    Contributor(s) Susan Sinnott
    Date 26 May. 2005
    Avg. Rating 4.0 out of 5 stars  (3)
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    The purpose of this learning module is to introduce students to some fundamental concepts in Nanofluidics. The module includes a pretest (without keys), a presentation, reading materials on Nanofluidics, links to the REBO simulation tool on the nanoHUB along with necessary instructions for running ...

  • 5.9 Ranking Fodor: Bandstructure of Carbon Nanotubes ...

    Bandstructure of Carbon Nanotubes and Nanoribbons

    Type Learning Modules
    Contributor(s) James K Fodor, Seokmin Hong, Jing Guo
    Date 14 Jun. 2007
    Avg. Rating 0.0 out of 5 stars  (0)
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    This learning module introduces users to the Carbon-Nano Bands simulation tool, which simulates the bandstructure of Carbon Nanotubes (CNTs) and Nanoribbons (CNRs). To gives users a strong background in bandstructure, the module starts with sections that introduce bandstructure basics. To this ...

  • 5.7 Ranking Fodor: Introduction to CNTbands

    Introduction to CNTbands

    Type Learning Modules
    Contributor(s) James K Fodor, Jing Guo
    Date 28 Jun. 2007
    Avg. Rating 0.0 out of 5 stars  (0)
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    This learning module introduces nanoHUB users to the CNTbands simulator. A brief introduction to CNTbands is presented, followed by voiced presentations featuring the simulator in action. Upon completion of this module, users should be able to use this simulator to gain valuable insight into the ...

  • 3.7 Ranking Zahid: Introduction to Molecular ...

    Introduction to Molecular Conduction

    Type Learning Modules
    Contributor(s) Ferdows Zahid, Magnus Paulsson, Avik Ghosh, Supriyo Datta
    Date 21 Jul. 2005
    Avg. Rating 4.0 out of 5 stars  (8)
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    A scanning probe microscope brushes the tips of molecules rising up from a gold substrate. After making contact, the probe measures a very strange current-voltage relationship--linear portions separated by flat spots or sharp increases. Definitely not Ohm's law. Is the experiment correct? What ...

Teaching Materials

  • 10.0 Ranking Wong: Homework for Resonant Tunneling ...

    Homework for Resonant Tunneling Diodes

    Type Teaching Materials
    Contributor(s) H.-S. Philip Wong
    Date 06 Jan. 2006
    Avg. Rating 0.0 out of 5 stars  (0)
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    This homework assignment was created by H.-S. Philip Wong for EE 218 "Introduction to Nanoelectronics and Nanotechnology" (Stanford University). It includes a couple of simple "warm up" exercises and two design problems, intended to teach students the electronic properties of resonant tunneling ...

  • 10.0 Ranking Alam: Homework for Monte Carlo Method: ...

    Homework for Monte Carlo Method: High field transport in Bulk Si

    Type Teaching Materials
    Contributor(s) Muhammad A. Alam
    Date 06 Jan. 2006
    Avg. Rating 5.0 out of 5 stars  (1)
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    This homework assignment is part of ECE 656 "Electronic Transport in Semiconductors" (Purdue University). It contains 10 problems which lead students through the simulation of high-field transport in bulk silicon.

  • 10.0 Ranking Alam: Homework for PN Junctions: ...

    Homework for PN Junctions: Depletion Approximation (ECE 606)

    Type Teaching Materials
    Contributor(s) Muhammad A. Alam
    Date 09 Jan. 2006
    Avg. Rating 5.0 out of 5 stars  (1)
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    This homework assignment is part of ECE 606 "Solid State Devices" (Purdue University). It contains 5 problems which lead students through a comparison of the depletion approximation and an exact solution of PN junction diodes. Students compute the exact solution by using the PN Junction Lab ...

  • 9.2 Ranking Torres: X-Ray Photoelectron Spectroscopy ...

    X-Ray Photoelectron Spectroscopy (XPS)

    Type Teaching Materials
    Contributor(s) David Echevarria Torres
    Date 14 Dec. 2006
    Avg. Rating 5.0 out of 5 stars  (1)
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    The XPS (X-Ray Photoelectron Spectroscopy) it is also known as ESCA (Electron Spectroscopy for Chemical Analysis). This technique is based on the theory of the photoelectric effect that was developed by Einstein, yet it was Dr. Siegbahn and his research group who developed the XPS technique. The ...

  • 8.3 Ranking Lundstrom: Homework for PN Junctions: ...

    Homework for PN Junctions: Depletion Approximation (ECE 305)

    Type Teaching Materials
    Contributor(s) Mark Lundstrom, David Janes
    Date 06 Jan. 2006
    Avg. Rating 0.0 out of 5 stars  (0)
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    This homework assignment is part of ECE 305 "Semiconductor Device Fundamentals" (Purdue University). It contains 7 problems which lead students through a comparison of the depletion approximation and the exact analysis of a PN junction diode.

  • 6.9 Ranking Santiago: Spectroscopic Ellipsometry

    Spectroscopic Ellipsometry

    Type Teaching Materials
    Contributor(s) Lynn Marie Santiago
    Date 13 Dec. 2006
    Avg. Rating 4.0 out of 5 stars  (1)
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    This is the fourth contribution from the students in the University of Texas at El Paso Molecular Electronics course given in the fall of 2006. This presentation is presented at the undergraduate level and introduces spectroscopic ellipsometry, which is one of the most important characterization ...

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Animations

  • 8.0 Ranking LSPM Team: What is a Nanometer?

    What is a Nanometer?

    Type Animations
    Contributor(s) EPICS LSPM Team
    Date 02 Apr. 2005
    Avg. Rating 3.5 out of 5 stars  (7)
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    Join Laura and Martin on a wild ride through the milliworld and the microworld to reach the nanoworld. Along the way, they discover how small a nanometer truly is.

  • 7.9 Ranking LSPM Team: Nanomanufacturing: Top-Down and ...

    Nanomanufacturing: Top-Down and Bottom-Up

    Type Animations
    Contributor(s) EPICS LSPM Team
    Date 15 Mar. 2005
    Avg. Rating 2.0 out of 5 stars  (1)
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    Martin presents an overview of nanomanufacturing techniques, explaining the difference between top-down and bottom-up approaches.

  • 7.9 Ranking LSPM Team: Nano/Bio Connection

    Nano/Bio Connection

    Type Animations
    Contributor(s) EPICS LSPM Team
    Date 02 Apr. 2005
    Avg. Rating 3.0 out of 5 stars  (2)
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    Nanotechnology is not just a topic for physicists, chemists, and engineers. Laura explains the important role of biologists in this field, and shows how they may help provide clues to molecular assembly techniques.

  • 7.7 Ranking LSPM Team: Scanning Probe Microscopes

    Scanning Probe Microscopes

    Type Animations
    Contributor(s) EPICS LSPM Team
    Date 15 Mar. 2005
    Avg. Rating 3.0 out of 5 stars  (1)
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    Laura explains how scanning probe microscopes can be used to create images of small devices, molecules, and even atoms! A large-scale version of the scanning probe microscope is built out of Legos to show the basic principles.

  • 6.5 Ranking LSPM Team: Feasibility of Molecular ...

    Feasibility of Molecular Manufacturing

    Type Animations
    Contributor(s) EPICS LSPM Team
    Date 15 Mar. 2005
    Avg. Rating 3.0 out of 5 stars  (3)
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    Martin and Laura have an interesting debate about the feasibility of Molecular Manufacturing. Can molecular assemblers be developed to create new materials, new devices, and even macroscopic objects? Find out... If Martin ever wakes up!

  • 5.4 Ranking Bean: Fabrication of a MOSFET within a ...

    Fabrication of a MOSFET within a Microprocessor

    Type Animations
    Contributor(s) John C. Bean
    Date 16 Nov. 2005
    Avg. Rating 4.5 out of 5 stars  (3)
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    This resource depicts the step-by-step process by which the transistors of an integrated circuit are made.

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Publications

  • 9.9 Ranking Wang: Device Physics and Simulation of ...

    Device Physics and Simulation of Silicon Nanowire Transistors

    Type Publications
    Contributor(s) Jing Wang
    Date 20 May. 2006
    Avg. Rating 0.0 out of 5 stars  (0)
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    As the conventional silicon metal-oxide-semiconductor field-effect transistor (MOSFET) approaches its scaling limits, many novel device structures are being extensively explored. Among them, the silicon nanowire transistor (SNWT) has attracted broad attention from both the semiconductor industry ...

  • 9.1 Ranking Rahman: Exploring New Channel Materials ...

    Exploring New Channel Materials for Nanoscale CMOS

    Type Publications
    Contributor(s) Anisur Rahman
    Date 21 May. 2006
    Avg. Rating 4.5 out of 5 stars  (2)
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    The improved transport properties of new channel materials, such as Ge and III-V semiconductors, along with new device designs, such as dual gate, tri gate or FinFETs, are expected to enhance the performance of nanoscale CMOS devices. Novel process techniques, such as ALD, high-k dielectrics, and ...

Downloads

  • 9.7 Ranking Palaria: A MATLAB code for Hartree Fock ...

    A MATLAB code for Hartree Fock calculation of H-H ground state bondlength and energy using STO-4G

    Type Downloads
    Contributor(s) Amritanshu Palaria
    Date 08 Aug. 2006
    Avg. Rating 5.0 out of 5 stars  (1)
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    Hartree Fock (HF) theory is one of the basic theories underlying the current understanding of the electronic structure of materials. It is a simple non-relativistic treatment of many electron system that accounts for the antisymmetric (fermion) nature of electronic wavefunction but does not account ...

  • 8.8 Ranking Datta: MATLAB Scripts for "Quantum ...

    MATLAB Scripts for "Quantum Transport: Atom to Transistor"

    Type Downloads
    Contributor(s) Supriyo Datta
    Date 15 Mar. 2005
    Avg. Rating 5.0 out of 5 stars  (2)
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    Tinker with quantum transport models! Download the MATLAB scripts used to demonstrate the physics described in Supriyo Datta's book Quantum Transport: Atom to Transistor. These simple models are less than a page of code, and yet they reproduce much of the fundamental physics observed in experiments.

Workshops

  • 10.0 Ranking   2005 Molecular Conduction and ...

    2005 Molecular Conduction and Sensors Workshop

    Type Workshops
    Contributor(s)
    Date 25 May. 2005
    Avg. Rating 0.0 out of 5 stars  (0)
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    This is the 3rd in a series of annual workshops on Molecular Conduction. The prior workshops have been at Purdue University, W. Lafayette, IN (2003) and Nothwestern University, Evanston, IL (2004). The workshop has been an informal and open venue for discussing new results, key challenges, and ...

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