Materials on nano

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  • Society is approaching and advancing nano- and microtechnology from various angles of science and engineering. The need for further fundamental, applied, and experimental research is matched by the demand for quality references that capture the multidisciplinary and multifaceted nature of the science.

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  • Nano-dimensional MnO2 were prepared in ethanol – water media from their inorganic salts by parallel redox reactions. The pH of solution, concentration of the salts and ethanol as well as reaction temperature were the key parameters for forming of nano-particles and anticoagulation. The MnO2 particles in colloidal solution then were coated on calcinated laterite grains to create new adsorption materials.

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  • A seemingly vast amount of studies is being dedicated to understanding the physical-chemical and structural properties of these quasi 1d systems, and how they relate to the various synthesis mechanisms and parameters; this is being increasingly realized through the use of advanced nano-scale characterization tools and methods either directly on as-synthesized nanostructures or on nanowire-based devices.

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  • Synthesis has a central role in the development of Science especially in Chemistry. The strategies adopted in synthesis of molecules and materials have undergone considerable changes in recent times and it was felt that it may be necessary to assess and assimilate information on this topic in a single place. Though, no originality is claimed to the contents on this topic, the very fact that the available information on this topic is available in one place itself is considered to be a major step forward.

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  • Lithography, the fundamental fabrication process of semiconductor devices, is playing a critical role in micro- and nano-fabrications and the revolution in high density integrated circuits. Traditional optical lithography (photolithography) including contact and project photolithography has contributed significantly to the semiconductor device advancements.

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  • In this chapter, the analytical embedded atom method and calculating Gibbs free energy method are introduced briefly. Combining these methods with molecular dynamic and Monte Carlo techniques, thermodynamics of nano-silver and alloy particles have been studied systematically.

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  • Still, a full understanding of nanowire physics cannot be achieved without a combination of these advanced characterizations with first principles (ab initio) calculations and methods to model their nano-scale characteristics and/or device performances. This volume is intended to orient the reader in the fast developing field of semiconductor nanowires, by providing a series of self-contained monographs focusing on various nanowire-related topics.

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  • In the latest years graphene based research has witnessed a tremendous explosion. This two dimensional ‘‘dream’’ material has come into the main spotlight of fundamental and applied research in diverse nano-science fields, but surprisingly rapidly, it has also attracted the interest of major stakeholders in the private sector.

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  • Cieslinski and Kaczmarczyk Nanoscale Research Letters 2011, 6:220 http://www.nanoscalereslett.com/content/6/1/220 NANO EXPRESS Open Access Pool boiling of water-Al2O3 and water-Cu nanofluids on horizontal smooth tubes Janusz T Cieslinski*, Tomasz Z Kaczmarczyk Abstract Experimental investigation of heat transfer during pool boiling of two nanofluids, i.e., water-Al2O3 and water-Cu has been carried out. Nanoparticles were tested at the concentration of 0.01%, 0.1%, and 1% by weight. The horizontal smooth copper and stainless steel tubes having 10 mm OD and 0.

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  • The new millennium has seen the birth of a new perspective that conflates research in solid-state physics, biological science as well as materials engineering. The perspective is one that recognizes that future new advances in all these areas will be based on a fundamental understanding of the atomic and molecular infrastructure of materials that has resulted from two centuries of chemistry. Major advances will be achieved when the novel behavior, in particular the quantum mechanical behavior, that nanoscale structures possess, can be controlled and harnessed....

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  • Today, nano composite material is being studied and widely used for defence security and economic development. Keeping researching on the mechanic of three-phases nano composite in which two-phases is grains of pad and the structure of one-phase in reinforced two-phases is a nano structure, basing on consideration for interaction of the polyme matrix and grains of padding, we have defined engineering constants of the three-phases polyme composite nano material.

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  • Practically speaking, because buildings are made from a series of parts, their assembly relies on techniques of aggregating and manipulating two­ dimensional materials. Computer fabrication has opened a realm for architects to perceptually heighten and make visible the nature of this accretion through constructed repetition and difference.

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  • In this study, the mixtures of ZnO and Ga2O3 powder with addition of LiCl flux were fired, the raw material mixing ratio, doped with Mn 2+ and firing atmosphere effects on phosphor characteristics were investigated. When fired at 1200°C, its phosphor powder emits a broad-band spectrum range between 375 nm to 700 nm, with a peak at 470 nm.

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  • Introduction to Flat Panel Displays describes the fundamental physics and materials of major flat panel display technologies including LED, OLED, LCD, PDP and FED and carbon nano-tubes. A textbook for senior undergraduate and graduate students, the book covers the basic sciences behind each display technology and gives solved problems and homework problems in each chapter to help consolidate their reading. Comparisons of the strengths and weaknesses of each of the display technologies will help display engineers to make decisions on which to use for their applications....

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  • Nanotechnology involves research and development on materials and species at length scales between 1 and 100 nm. The term nano is derived from the Greek word meaning “dwarf.” In dimensional scaling, nano refers to 10–9, i.e., one billionth of a unit. Thus, a nanometer is 10–9 m (0.000000001 m), or about the size of a molecule such as benzene. Nanotechnology therefore, refers to the techniques and methods for studying, designing, and fabricating things at the nanometer scale.

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  • Sintering is one of the final stages of ceramics fabrication and is used to increase the strength of the compacted material. In the Sintering of Ceramics section, the fabrication of electronic ceramics and glass-ceramics were presented. Especially dielectric properties were focused on. In other chapters, sintering behaviour of ceramic tiles and nano-alumina were investigated. Apart from oxides, the sintering of non-oxide ceramics was examined.

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  • “There’s Plenty of Room at the Bottom” ⎯ this was the title of the lecture Prof. Richard Feynman delivered at California Institute of Technology on December 29, 1959 at the American Physical Society meeting. He considered the possibility to manipulate matter on an atomic scale. Indeed, the design and controllable synthesis of nanomaterials have attracted much attention because of their distinctive geometries and novel physical and chemical properties.

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  • This paper will show the results of the first experiments to get nano-clay clay composite materials based on modified polystyrene resin by melt - mix method. The intercalated nanocomposite structures are characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM) techniques. Polystyrene nano-composites with 2% nanoclay by weight exhibit an increases about 10% in impact resistance and they also lower the water absortion (nearly 60% compared with polystyrene resin) without any significant loss of tensile strength, flexural strength and flexural modulus.

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  • Aeberhard Nanoscale Research Letters 2011, 6:242 http://www.nanoscalereslett.com/content/6/1/242 NANO EXPRESS Open Access Theory and simulation of photogeneration and transport in Si-SiOx superlattice absorbers Urs Aeberhard Abstract Si-SiOx superlattices are among the candidates that have been proposed as high band gap absorber material in allSi tandem solar cell devices. Owing to the large potential barriers for photoexited charge carriers, transport in these devices is restricted to quantum-confined superlattice states.

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  • The nano-scale spatial organization of metallic and other inorganic materi-als into 1D objects is a key task in nanotechnology. Nano-scale fibers and tubes are very useful templates for such organization because of their inherent 1D organization. Fibrillar biological molecules and biomolecular assemblies are excellent physical supports on which to organize the inor-ganic material.

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