Tags: carbon nanotubes

Description

100 amps of electricity crackle in a vacuum chamber, creating a spark that transforms carbon vapor into tiny structures. Depending on the conditions, these structures can be shaped like little, 60-atom soccer balls, or like rolled-up tubes of atoms, arranged in a chicken-wire pattern, with rounded ends. These tiny, carbon nanotubes, discovered by Sumio Iijima at NEC labs in 1991, have amazing properties. They are 100 times stronger than steel, but weigh only one-sixth as much. They are incredibly resilient under physical stress; even when kinked to a 120-degree angle, they will bounce back to their original form, undamaged. And they can carry electrical current at levels that would vaporize ordinary copper wires.

Learn more about carbon nanotubes from the many resources on this site, listed below. More information on Carbon nanotubes can be found here.

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  1. On the Reliability of Micro-Electronic Devices: An Introductory Lecture on Negative Bias Temperature Instability

    28 Sep 2005 | | Contributor(s):: Muhammad A. Alam

    In 1930s Bell Labs scientists chose to focus on Siand Ge, rather than better known semiconductors like Ag2S and Cu2S, mostly because of their reliable performance. Their choice was rewarded with the invention of bipolar transistors several years later. In 1960s, scientists at Fairchild worked...

  2. Optimization of Transistor Design for Carbon Nanotubes

    20 Jan 2006 | | Contributor(s):: Jing Guo

    We have developed a self-consistent atomistic simulator for CNTFETs.Using the simulator, we show that a recently reported high-performanceCNTFET delivers a near ballistic on-current. The off-state, however, issignificantly degraded because the CNTFET operates like anon-conventional Schottky...

  3. Putting the Electron’s Spin to Work

    01 Apr 2011 | | Contributor(s):: Daniel Ralph

    I will discuss recent progress in experimental techniques to control the orientations of nanoscale magnetic moments and electron spins, and to use these new means of control for applications. One powerful new capability arises from the fact that thin magnetic layers can act as filters for spins.

  4. Quantum and Atomistic Effects in Nanoelectronic Transport Devices

    26 Jun 2013 | | Contributor(s):: Neophytos Neophytou

    As devices scale towards atomistic sizes, researches in silicon electronic device technology are investigating alternative structures and materials. As predicted by the International Roadmap for Semiconductors, (ITRS), structures will evolve from planar devices into devices that include 3D...

  5. Quantum Dots

    21 Jul 2005 | | Contributor(s):: Gerhard Klimeck

    Quantum Dots are man-made artificial atoms that confine electrons to a small space. As such, they have atomic-like behavior and enable the study of quantum mechanical effects on a length scale that is around 100 times larger than the pure atomic scale. Quantum dots offer application...

  6. Quantum Transport: Atom to Transistor (Spring 2004)

    23 May 2006 | | Contributor(s):: Supriyo Datta

    Spring 2004Please Note: A newer version of this course is now available and we would greatly appreciate your feedback regarding the new format and contents.Course Information WebsiteThe development of "nanotechnology" has made it possible to engineer materials and devices on a length scale as...

  7. Random Forest Model Objects for Pulmonary Toxicity Risk Assessment

    09 Apr 2013 | | Contributor(s):: Jeremy M Gernand

    This download contains MATLAB treebagger or Random Forest (RF) model objects created via meta-analysis of nanoparticle rodent pulmonary toxicity experiments. The ReadMe.txt file contains object descriptions including output definitions, input parameter descriptions, and applicable limits.

  8. Resonant Tunneling Diodes: an Exercise

    06 Jan 2006 | | Contributor(s):: H.-S. Philip Wong

    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...

  9. sandeep Yadav

    http://nanohub.org/members/149702

  10. Sanghamitra Anand

    I'm 17, a senior high school-er, making use of Nanohub resources for extra interest and my project work associated with The Junior Academy class of 2016-17. Hope to learn a lot of new exciting...

    http://nanohub.org/members/158926

  11. Schottky-Barrier CNFET

    16 Mar 2007 | | Contributor(s):: Arash Hazeghi, Tejas K, H.-S. Philip Wong

    Simulate Carbon Nanotube field Effect transistor with Schottky Barriers

  12. Selected Properties of Carbon Nanostructures: from Exotic Fullerenes to Nanotubes

    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...

  13. Self-Consistent Geometry, Density and Stiffness of Carbon Nanotubes

    04 May 2010 | | Contributor(s):: R. Byron Pipes

    A self-consistent set of relationships is developed for the physical properties of single walled carbon nanotubes (SWCN) and their hexagonal arrays as a function of the chiral vector integer pair, (n,m). Properties include effective radius, density, principal Young’s modulus, and specific...

  14. Self-Consistent Properties of Carbon Nanotubes and Hexagonal Arrays as Composite Reinforcements

    05 May 2010 | | Contributor(s):: R. Byron Pipes

    A self-consistent set of relationships is developed for the physical properties of single walled carbon nanotubes (SWCN) and their hexagonal arrays as a function of the chiral vector integer pair, (n,m). Properties include effective radius, density, principal Young’s modulus, and specific...

  15. Semiconductor Interfaces at the Nanoscale

    17 Oct 2005 | | Contributor(s):: David Janes

    The trend in downscaling of electronic devices and the need to add functionalities such as sensing and nonvolatile memory to existing circuitry dictate that new approaches be developed for device structures and fabrication technologies. Various device technologies are being investigated,...

  16. Smt. A. Naga Malli

    Assistant Professor, Dept of ECE, Gayatri Vidya Parishad college of Engineeering(A)

    http://nanohub.org/members/146115

  17. Sofia Cunha

    http://nanohub.org/members/195711

  18. Some Important Aspects of the Chemistry of Nanomaterials

    01 Jul 2008 | | Contributor(s):: C.N.R. Rao

    Keynote address for the launch of the Center for Analytical Instrumentation Development.

  19. SPMW Nanomechanics: from nanotechnology to biology

    12 Dec 2006 |

    The development of new materials with size of few nanometers has opened a new field of scientific and technological research. The goal is to develop faster and better communication systems and transports, as well as smarter and smaller nanodevices for biomedical applications. To reach these...

  20. SPMW Nanotube, nanoneedle and nanomeniscus: mechanical and wetting properties of modified AFM tip apex

    12 Dec 2006 |

    Among AFM microscopes, Dynamic force microscopes (DFM) are very sensitive to variation of minute forces involved in the interaction between the tip and the surface. However, despite numerous efforts, imaging and probing mechanical properties of soft materials in air and water at the nm scale are...