Future Trends in Microelectronics: Up the Nano Creek

Product Description
In this book leading profesionals in the semiconductor microelectronics field discuss the future evolution of their profession. The following are some of the questions discussed:

• Does CMOS technology have a real problem?
• Do transistors have to be smaller or just better and made of better materials?
• What is to come after semiconductors?
• Superconductors or molecular conductors?
• Is bottom-up self-assembling the answer to the limitation of top-down lithography?
• Is it time for Optics to become a force in computer evolution?
• Quantum Computing, Spintronics?
• Where is the printable plastic electronics proposed 10 years ago?
• Are carbon nanotube transistors the CMOS of the future?

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Observation on CNT-FED under various vacuum levels and calculation on number of electron-gas collisions

Product Description
This digital document is a journal article from Displays, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
Based on experimental observation and theoretical analysis, it explicates that light emission of a carbon nanotube-field emission display (CNT-FED) is mainly caused by electron bombardment on the phosphour if the level of vacuum ranges from 10^-^4 to 5Pa. In this case, light emission of the phosphour excited by ultraviolet (UV) light derived from gas discharge cannot be observed. If vacuum level is greater than 5Pa, no emitted light is observed, since a large amount of gas ionisation reduces the electric potential difference between the cathode and the anode. To analyze collision between electron and gas under field emission conditions, a mathematical and physical model was built. Based on this model the number of electron-gas collisions is calculated. Calculations results indicate that the product of gas pressure and distance between the electrodes (pd) is a better parameter to characterize the effect of vacuum level for FED than gas pressure only. Calculations results also show that if the distance between the cathode and the anode is increased, it should be to improve the vacuum level to obtain the same effect.

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Electrochemical determination of pharmaceuticals in spiked water samples

Product Description
This digital document is a journal article from Journal of Hazardous Materials, published by Elsevier in . The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
The electrochemical behaviour of acidic and neutral pharmaceutical active compounds (PhACs) was studied by cyclic voltammetry and pulse voltammetric techniques on mercury, carbon nanotube paste, carbon paste and gold electrodes. The best results, in terms of sensitivity, linearity range and detection limits, were obtained by differential pulse voltammetry (DPV) for ofloxacin (LOD 5.2@mM), differential pulse polarography (DPP) for clofibric acid (LOD 4.7@mM) and normal pulse voltammetry (NPV) for diclofenac (LOD 0.8@mM) and propranolol (LOD 0.5@mM). An enrichment step of approximately two orders of magnitude was performed by a solid-phase extraction procedure (SPE) in order to concentrate the samples. The developed method was optimized and tested on spiked river water samples.

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Intelligent Macromolecules for Smart Devices: From Materials Synthesis to Device Applications

Product Description
The age of nanotechnology is upon us. Engineering at the molecular level is no longer a computer-generated curiosity and is beginning to affect the lives of everyone. Molecules which can respond to their environment and the smart machines we can build with them are and will continue to be a vital part of this 21st-century revolution. Liming Dai presents the latest work on many newly-discovered intelligent macromolecular systems and reviews their uses in nano-devices. Intelligent Macromolecules for Smart Devices features: § An accessible assessment of the properties and materials chemistry of all the major classes of intelligent macromolecules from optoelectronic biomacromolecules to dendrimers, artificial opals and carbon nanotubes. § In-depth analysis of various smart devices including a critique of the suitability of different molecules for building each type of device. § A concise compilation of the practical applications of intelligent macromolecules including sensors and actuators, polymer batteries, carbon-nanotube supercapacitors, novel lasing species and photovoltaic cells. As an exposition of cutting-edge research against a backdrop of comprehensive review, Intelligent Macromolecules for Smart Devices will be an essential addition to the bookshelf of academic and industrial researchers in nanotechnology. Graduate and senior undergraduate students looking to make their mark in this field of the future will also find it most instructive.

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Carbon nanotube

Product Description
Carbon nanotube. Potential applications of carbon nanotubes, Allotropes of carbon, Boron nitride, Timeline of carbon, notubes, Carbon nanotubes in photovoltaics, Graphit, Quantum chemistry, Specific strength, Crystallographic defect, Fibrosis

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