Найти книгу: "Carbon Nanotubes"

Carbon nanotubes are exceptionally interesting from a fundamental research point of view. Many concepts of one-dimensional physics have been verified experimentally such as electron and phonon confinement or the one-dimensional singularities in the density of states; other 1D signatures are still under debate, such as Luttinger-liquid behavior. Carbon nanotubes are chemically stable, mechanically very strong, and conduct electricity. For this reason, they open up new perspectives for various applications, such as nano-transistors in circuits, field-emission displays, artificial muscles, or added reinforcements in alloys. This text is an introduction to the physical concepts needed for investigating carbon nanotubes and other one-dimensional solid-state systems. Written for a wide scientific readership, each chapter consists of an instructive approach to the topic and sustainable ideas for solutions. The former is generally comprehensible for physicists and chemists, while the latter enable the reader to work towards the state of the art in that area. The book gives for the first time a combined theoretical and experimental description of topics like luminescence of carbon nanotubes, Raman scattering, or transport measurements. The theoretical concepts discussed range from the tight-binding approximation, which can be followed by pencil and paper, to first-principles simulations. We emphasize a comprehensive theoretical and experimental understanding of carbon nanotubes including – general concepts for one-dimensional systems – an introduction to the symmetry of nanotubes – textbook models of nanotubes as narrow cylinders – a combination of ab-initio calculations and experiments – luminescence excitation spectroscopy linked to Raman spectroscopy – an introduction to the 1D-transport properties of nanotubes – effects of bundling on the electronic and vibrational properties and – resonance Raman scattering in nanotubes.

With Profiting from Clean Energy, respected investment analyst Richard Asplund provides an in-depth explanation of the technology and industry structure behind various sectors of this field and in the process identifies more than 150 stocks related to clean energy. Along the way, Asplund discusses exactly what it takes to effectively invest in clean energy—whether it be through buying individual stocks, investing in green exchange-traded funds or mutual funds, or trading the biofuel and carbon credit markets.

Praise for Carbon Finance «A timely, objective, and informative analysis of the financial opportunities and challenges presented by climate change, including a thorough description of adaptive measures and insurance products for managing risk in a carbon constrained economy.» —James R. Evans, M. Eng. P. Geo., Senior Manager, Environmental Risk Management, RBC Financial Group «Climate change will have enormous financial implications in the years to come. How businesses and investors respond to the risks and opportunities from this issue will have an enormous rippling effect in the global economy. Sonia Labatt and Rodney White's insights and thoughtful analysis should be read by all who want to successfully navigate this global business issue.» —Andrea Moffat, Director, Corporate Programs, Ceres «In Carbon Finance, Labatt and White present a clear and accessible description of the climate change debate and the carbon market that is developing. Climate change is becoming an important factor for many financial sector participants. The authors illustrate how challenges and opportunities will arise within the carbon market for banking, insurance, and investment activities as well as for the regulated and energy sector of the economy.» —Charles E. Kennedy, Director and Portfolio Manager, MacDougall, MacDougall & MacTier Inc. «Climate change is the greatest environmental challenge of our generation. Its impact on the energy sector has implications for productivity and competitiveness. At the same time, environmental risk has emerged as a major challenge for corporations in the age of full disclosure. Carbon Finance explains how these disparate forces have spawned a range of financial products designed to help manage the inherent risk. It is necessary reading for corporate executives facing challenges that are unique in their business experience.» —Skip Willis, Managing Director Canadian Operations, ICF International «In this timely publication, Labatt and White succeed in communicating the workings of carbon markets, providing simple examples and invaluable context to the new and changing mechanisms that underpin our transformation to a carbon-constrained world. Carbon Finance will be the definitive guide to this field for years to come.» —Susan McGeachie, Director, Innovest Strategic Value Advisors, Graduate Faculty Member, University of Toronto; and Jane Ambachtsheer, Principal, Mercer Investment Consulting, Graduate Faculty Member, University of Toronto

Carbon nanotubes (CNTs) have novel properties that make them potentially useful in many applications in nanotechnology, electronics, optics and other fields of materials science. These characteristics include extraordinary strength, unique electrical properties, and the fact that they are efficient heat conductors. Field emission is the emission of electrons from the surface of a condensed phase into another phase due to the presence of high electric fields. CNT field emitters are expected to make a breakthrough in the development of field emission display technology and enable miniature X-ray sources that will find a wide variety of applications in electronic devices, industry, and medical and security examinations. This first monograph on the topic covers all aspects in a concise yet comprehensive manner – from the fundamentals to applications. Divided into four sections, the first part discusses the preparation and characterization of carbon nanotubes, while part two is devoted to the field emission properties of carbon nanotubes, including the electron emission mechanism, characteristics of CNT electron sources, and dynamic behavior of CNTs during operation. Part three highlights field emission from other nanomaterials, such as carbon nanowalls, diamond, and silicon and zinc oxide nanowires, before concluding with frontier R&D applications of CNT emitters, from vacuum electronic devices such as field emission displays, to electron sources in electron microscopes, X-ray sources, and microwave amplifiers. Edited by a pioneer in the field, each chapter is written by recognized experts in the respective fields.

Carbon solids have been utilized by man since prehistoric times, first as a source of heat and then for other purposes; these are used as key markers for different civilizations. The essential role played by the use of coal mines during the industrial revolution as a main source of energy is a crucial point, which was then expanded through the development of carbochemistry. This book begins by describing the use of solid carbons as traditional materials, for example in the steel industry and for ceramics, then moving on to their technological uses such as active carbons and carbon fibers, etc., before discussing nanocarbons, the jewel in the crown of contemporary technological science. The final chapter analyzes the current economic and social impact of carbon solids.