Written by the most prominent experts and pioneers in the field, this ready reference combines fundamental research, recent breakthroughs and real-life applications in one well-organized treatise.
As such, both newcomers and established researchers will find here a wide range of current methods for producing and characterizing carbon nanotubes using imaging as well as spectroscopic techniques. One major part of this thorough overview is devoted to the controlled chemical functionalizatio
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Following on from the first AMN volume, this handy reference and textbook examines the topic of nanosystem design in further detail. It explains the physical and chemical basics behind the design and fabrication of nanodevices, covering all important, recent advances in the field, while introducing nanosystems to less experienced readers. The result is an important source for a fast, accurate overview of the state of the art of nanosystem realization, summarizing further important literat
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Applications of Nanotechnology- A general view
Applications of Nanotechnology- A general view
By- Dr.Ratnam Challa
Physicists all over the world are concentrating on application oriented Physics rather than Fundamental Physics. The Physics of the Nanoworld is the latest field of active research in this century. The last few years has seen a gold rush to claim patents at the nanoscale. Over 800 nano-related patents were granted in 2003, and the numbers are increasing year to year. Corporations are already taking out broad-ranging patents on nanoscale discoveries and inventions. Corporations like NEC and IBM, hold the basic patents on carbon nanotubes, one of the current cornerstones of Nanotechnology. Carbon NanoTubes (CNT) have a wide range of uses, and look set to become crucial to several industries from electronics and computers, to strengthened materials to drug delivery and diagnostics. Hewlett-Packard has proposed the use of a Nanomaterial called “Memristor” as a future replacement of Flash memory.
What is Nanotechnology?
Nanotechnology, shortened to “nanotech“, is the study of controlling of matter on an atomic and molecular scale. Generally nanotechnology deals with structures sized between 1 to 100 nanometer in at least one dimension, and involves developing materials or devices within that size. One nanometer (nm) is one billionth, or 10−9 of a meter. By comparison, typical Carbon-Carbon Bond-Lengths, or the spacing between these atoms in a molecule, are in the range 0.12–0.15 nm, and a DNA double-helix has a diameter around 2 nm. On the other hand, the smallest cellular life-forms, the bacteria of the genus Mycoplasma are around 200 nm in length.
A number of physical phenomena become pronounced as the size of the system decreases. The electronic properties of solids are altered with great reductions in particle size. Quantum mechanical effects and Statistical mechanical effects become dominant when the nanometer size range is reached. A number of physical (mechanical, electrical, optical, etc.) properties change at such dimensions when compared to macroscopic systems. One example is the increase in surface area to volume ratio altering mechanical, thermal and catalytic properties of materials. Diffusion reactions at nanoscale, nanostructure materials and nanodevices with fast ion transport are generally referred to Nanoionics.
Mechanical properties of Nanosystems are of interest in the Nanomechanics research. Materials reduced to the nanoscale can show different properties compared to what they exhibit on a macro scale, enabling unique applications. For instance
1) Opaque substances become transparent (copper);
2) Stable materials turn combustible (aluminum);
3) Insoluble materials become soluble (gold).
4) A material such as gold, which is chemically inert at normal scales, can serve as a potent chemical catalyst at nano scales.
Much of the fascination with nanotechnology stems from these quantum and surface phenomena that matter exhibits at the nanoscale.
Nanotechnology and Nanoscience got a boost in the early 1980s with two major developments: the birth of Cluster Science and the invention of the Scanning Tunnelling Microscope (STM). This development led to the discovery of “Fullerenes” in 1985 and the structural assignment of “Carbon Nanotubes” a few years later. In another development, the synthesis and properties of semiconductor Nanocrystals were studied. This led to a fast increasing number of Semiconductor nanoparticles and Quantum

Carbon filament, vapor grown carbon fibers and carbon nanotubes have been discovered to have remarkable properties, opening they way for their use in intriguing and novel applications in electronics, chemistry and materials science. There are many similarities between nanotubes and filaments, leading many researchers to critically compare the two materials, their production, and potential applications. The two materials are compared and contrasted in depth in the present book, which is a
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This book gives a comprehensive review of the present status of research in this fast moving field by researchers actively contributing to the advances. After a short introduction and a brief review of the relation between carbon nanotubes, graphite and other forms of carbon, the synthesis techniques and growth mechanisms for carbon nanotubes are described. This is followed by reviews on nanotube electronic structure, electrical, optical, and mechanical properties, nanotube imaging and spectrosc
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Computational Physics of Carbon Nanotubes by Hashem ...| US $42.20 End Date: Friday Sep-10-2010 8:33:51 PDT Buy It Now for only: US $42.20 Buy it now | Add to watch list |
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