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Some Important Aspects of the Chemistry of Nanomaterials
Online Presentations | 01 Jul 2008 | Contributor(s):: C.N.R. Rao
Keynote address for the launch of the Center for Analytical Instrumentation Development.
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CNT Heterojunction Modeler
Tools | 20 Mar 2008 | Contributor(s):: Joe Ringgenberg, Joydeep Bhattacharjee, Jeffrey B. Neaton, Jeffrey C Grossman
Study the structure and electronic properties of carbon nanotubes with linear heterojunctions.
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BNC Research Review: Carbon Nanotubes as Nucleic Acid Carriers
Online Presentations | 04 Jun 2008 | Contributor(s):: Don Bergstrom
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 year.
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Nano Carbon: From ballistic transistors to atomic drumheads
Online Presentations | 14 May 2008 | Contributor(s):: Paul L. McEuen
Carbon takes many forms, from precious diamonds to lowly graphite. Surprisingly, it is the latter that is the most prized by nano physicists. Graphene, a single layer of graphite, can serve as an impenetrable membrane a single atom thick. Rolled up into a nanometer-diameter cylinder--a carbon...
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Carbon Nanotechnology: Scientific and Technological Issues
Online Presentations | 24 Feb 2008 | Contributor(s):: Joe Lyding
Carbon nanotechnologies based on single-walled carbon nanotubes (SWNTs) and graphene (a single atomic layer of graphite) are being pursued for a wide range of technological applications ranging from chemical sensing to post-silicon nanoelectronics. A common thread is the need to atomistically...
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Selected Properties of Carbon Nanostructures: from Exotic Fullerenes to Nanotubes
Online Presentations | 30 Mar 2008 | Contributor(s):: Manfred M. Kappes
The talk presents results from ongoing projects in the field of carbonnanostructures: (i) Mass selected ion beam soft-landing has been usedto generate exotic fullerene materials comprising covalent linked,non-IPR cages. Apart from microscopic structure, we have studiedthermal and electronic...
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Boltzmann Transport Simulator for CNTs
Tools | 20 Feb 2008 | Contributor(s):: Zlatan Aksamija, Umberto Ravaioli
Simulate Electron transport in Single-walled carbon nanotubes using an upwinding discretization of the Boltzmann transport equation in the relaxation time approximation.
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The Novel Nanostructures of Carbon
Online Presentations | 28 Feb 2008 | 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 graphene and graphite, and then moving to graphite intercalation compounds which contained the first...
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What Promises do Nanotubes and Nanowires Hold for Future Nanoelectronics Applications?
Online Presentations | 18 Feb 2008 | Contributor(s):: Joerg Appenzeller
Various low-dimensional materials are currently explored for future electronics applications. The common ground for all these structures is that the surface related impact can no longer be ignored – the common approach applied to predict properties of bulk-type three-dimensional (3D) materials....
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Computational Nanoscience, Lecture 5: A Day of In-Class Simulation: MD of Carbon Nanostructures
Teaching Materials | 13 Feb 2008 | Contributor(s):: Jeffrey C Grossman, Elif Ertekin
In this lecture we carry out simulations in-class, with guidance from the instructors. We use the LAMMPS tool (within the nanoHUB simulation toolkit for this course). Examples include calculating the energy per atom of different fullerenes and nantubes, computing the Young's modulus of a nanotube...
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Computational Nanoscience, Lecture 4: Geometry Optimization and Seeing What You're Doing
Teaching Materials | 13 Feb 2008 | Contributor(s):: Jeffrey C Grossman, Elif Ertekin
In this lecture, we discuss various methods for finding the ground state structure of a given system by minimizing its energy. Derivative and non-derivative methods are discussed, as well as the importance of the starting guess and how to find or generate good initial structures. We also briefly...
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Heat Transfer across Solid Contacts Enhanced with Nanomaterials
Online Presentations | 11 Feb 2008 | 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 the basic diffusive constriction theory will be developed. The addition of carbon nanotube arrays to...
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Dynamics on the Nanoscale: Time-domain ab initio studies of quantum dots, carbon nanotubes and molecule-semiconductor interfaces
Online Presentations | 31 Jan 2008 | Contributor(s):: Oleg Prezhdo
Device miniaturization requires an understanding of the dynamical response of materials on the nanometer scale. A great deal of experimental and theoretical work has been devoted to characterizing the excitation, charge, spin, and vibrational dynamics in a variety of novel materials, including...
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Crystal Viewer Tool
Tools | 22 Dec 2007 | Contributor(s):: Yuanchen Chu, Daniel F Mejia, Fan Chen, James Fonseca, Michael Povolotskyi, Gerhard Klimeck
Visualize different crystal lattices and planes
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Excellence in Computer Simulation: Computational Materials
Online Presentations | 20 Dec 2007 | Contributor(s):: Eric Schwegler
This presentation was one of 13 presentations in the one-day forum, "Excellence in Computer Simulation," which brought together a broad set of experts to reflect on the future of computational science and engineering.
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Nano Heatflow
Tools | 25 Sep 2007 | Contributor(s):: Joe Ringgenberg, P. Alex Greaney, daniel richards, Jeffrey C Grossman, Jeffrey B. Neaton, Justin Riley
Study the transfer of energy between the vibrational modes of a carbon nanotube.
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New Dimension in Performance: Harnessing 3D Integration Technology
Online Presentations | 29 Nov 2007 | Contributor(s):: Kerry Bernstein
Despite generation on generation of scaling, computer chips have remained essentially 2-dimensional. Improvements in on-chip wire delay, and in the total number of inputs and outputs has not been able to keep up with improvements to the transistor, and its getting harder and harder to hide it! 3D...
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Oligodeoxyribonucleotide Association with Single-Walled Carbon Nanotubes
Online Presentations | 02 Aug 2007 | Contributor(s):: Jennifer McDonald
Commercially available single-walled carbon nanotubes (SWCNTs) tend to aggregate as ropes and bundles during production making them of little use in many scientific and industrial applications. An effective technique for dispersing and solubilizing SWCNTs is required to fully utilize their unique...
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The Effect of Physical Geometry on the Frequency Response of Carbon Nanotube Field-Effect Transistors
Online Presentations | 03 Aug 2007 | Contributor(s):: Dave Lyzenga
In order for carbon nanotube (CNT) electrical devices to be fabricated, it is necessary to obtain modifiable operation characteristics. Developing parametric equations to achieve this controllability in the vertical field-effect transistor (FET) design is an important first step toward...
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Introduction to FETToy
Series | 03 Jul 2007 | Contributor(s):: James K Fodor, Jing Guo
This learning module introduces nanoHUB users to the FETToy simulator. A brief introduction to FETToy 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...