In Situ Transmission Electron Microscopy Studies Of Carbon Nanotube Nucleation Mechanism And Carbon Nanotube Clamped Metal Atomic Chains

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In Situ Transmission Electron Microscopy Studies of Carbon Nanotube Nucleation Mechanism and Carbon Nanotube-Clamped Metal Atomic Chains

Author : Dai-Ming Tang
Publisher : Springer Science & Business Media
ISBN 13 : 3642372597
Total Pages : 131 pages
Book Rating : 4.6/5 (423 download)

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Book Synopsis In Situ Transmission Electron Microscopy Studies of Carbon Nanotube Nucleation Mechanism and Carbon Nanotube-Clamped Metal Atomic Chains by : Dai-Ming Tang

Download or read book In Situ Transmission Electron Microscopy Studies of Carbon Nanotube Nucleation Mechanism and Carbon Nanotube-Clamped Metal Atomic Chains written by Dai-Ming Tang and published by Springer Science & Business Media. This book was released on 2014-07-08 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using an in situ transmission electron microscopy (TEM) approach to investigate the growth mechanism of carbon nanotubes (CNTs) as well as the fabrication and properties of CNT-clamped metal atomic chains (MACs) is the focus of the research summarized in this thesis. The application of an in situ TEM approach in the above-mentioned research provides not only real-time observation but also monitored machining and structural evolvement at the atomic level. In this thesis, the author introduces a CNT tubular nano furnace that can be operated under TEM for investigation of the CNT nucleation mechanism. By studying the nucleation process of CNTs in the presence of various catalysts, including iron-based metallic catalysts and silicon oxide-based non-metallic catalysts, the physical states of the catalysts as well as the nucleation and growth process of CNTs are revealed. Based on the understanding of the nucleation mechanism, the author proposes a hetero-epitaxial growth strategy of CNTs from boron nitride, which provides a new route for the controllable growth of CNTs. In addition, the author presents an electron beam-assisted nanomachining technique and the fabrication of a CNT-clamped MAC prototype device based on this technique. The formation process of CNT-clamped Fe atomic chains (ACs) can be monitored with atomic resolution. The demonstrated quantized conductance and uninfluenced half-metallic properties of Fe ACs indicate that CNTs can be promising nanoscale electrodes or interconnectors for the linking and assembly of nano and subnano structures.

Advanced Transmission Electron Microscopy

Author : Francis Leonard Deepak
Publisher : Springer
ISBN 13 : 3319151770
Total Pages : 281 pages
Book Rating : 4.3/5 (191 download)

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Book Synopsis Advanced Transmission Electron Microscopy by : Francis Leonard Deepak

Download or read book Advanced Transmission Electron Microscopy written by Francis Leonard Deepak and published by Springer. This book was released on 2015-06-05 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights the current understanding of materials in the context of new and continuously emerging techniques in the field of electron microscopy. The authors present applications of electron microscopic techniques in characterizing various well-known & new nanomaterials. The applications described include both inorganic nanomaterials as well as organic nanomaterials.

Carbon Nanotubes

Author : M. Endo
Publisher : Elsevier
ISBN 13 : 008054553X
Total Pages : 200 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis Carbon Nanotubes by : M. Endo

Download or read book Carbon Nanotubes written by M. Endo and published by Elsevier. This book was released on 2013-10-22 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon nanotubes have been studied extensively in relation to fullerenes, and together with fullerenes have opened a new science and technology field on nano scale materials. A whole range of issues from the preparation, structure, properties and observation of quantum effects in carbon nanotubes in comparison with 0-D fullerenes are discussed. In addition, complementary reviews on carbon nanoparticles such as carbon nano-capsules, onion-like graphite particles and metal-coated fullerenes are covered. This book aims to cover recent research and development in this area, and so provide a convenient reference tool for all researchers in this field. It is also hoped that this book can serve to stimulate future work on carbon nanotubes.

Electron Microscopy of Nanotubes

Author :
Publisher : 清华大学出版社有限公司
ISBN 13 : 9787302082132
Total Pages : 338 pages
Book Rating : 4.0/5 (821 download)

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Book Synopsis Electron Microscopy of Nanotubes by :

Download or read book Electron Microscopy of Nanotubes written by and published by 清华大学出版社有限公司. This book was released on 2004 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: 本书用英文的形式分析了纳米管电子显微。

Carbon Nanotube and Related Field Emitters

Author : Yahachi Saito
Publisher : John Wiley & Sons
ISBN 13 : 3527632107
Total Pages : 551 pages
Book Rating : 4.5/5 (276 download)

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Book Synopsis Carbon Nanotube and Related Field Emitters by : Yahachi Saito

Download or read book Carbon Nanotube and Related Field Emitters written by Yahachi Saito and published by John Wiley & Sons. This book was released on 2010-10-01 with total page 551 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Growing Carbon Nanotubes

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (986 download)

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Book Synopsis Growing Carbon Nanotubes by :

Download or read book Growing Carbon Nanotubes written by and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In situ transmission electron microscope (TEM) video (accelerated 10 times) of nucleation and self-organization of a high-density carbon nanotube network from catalytic iron nanoparticles, forming a vertically aligned forest.

Carbon Nanotubes: From Basic Research to Nanotechnology

Author : Valentin N. Popov
Publisher : Springer Science & Business Media
ISBN 13 : 1402045743
Total Pages : 270 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Carbon Nanotubes: From Basic Research to Nanotechnology by : Valentin N. Popov

Download or read book Carbon Nanotubes: From Basic Research to Nanotechnology written by Valentin N. Popov and published by Springer Science & Business Media. This book was released on 2006-05-03 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is about 15 years that the carbon nanotubes have been discovered by Sumio Iijima in a transmission electron microscope. Since that time, these long hollow cylindrical carbon molecules have revealed being remarkable nanostructures for several aspects. They are composed of just one element, Carbon, and are easily produced by several techniques. A nanotube can bend easily but still is very robust. The nanotubes can be manipulated and contacted to external electrodes. Their diameter is in the nanometer range, whereas their length may exceed several micrometers, if not several millimeters. In diameter, the nanotubes behave like molecules with quantized energy levels, while in length, they behave like a crystal with a continuous distribution of momenta. Depending on its exact atomic structure, a single-wall nanotube –that is to say a nanotube composed of just one rolled-up graphene sheet– may be either a metal or a semiconductor. The nanotubes can carry a large electric current, they are also good thermal conductors. It is not surprising, then, that many applications have been proposed for the nanotubes. At the time of writing, one of their most promising applications is their ability to emit electrons when subjected to an external electric field. Carbon nanotubes can do so in normal vacuum conditions with a reasonable voltage threshold, which make them suitable for cold-cathode devices.

Carbon Nanotubes: Synthesis, Characterization and Applications

Author : Kamal K. Kar
Publisher : Research Publishing Service
ISBN 13 : 9810863977
Total Pages : 15 pages
Book Rating : 4.8/5 (18 download)

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Book Synopsis Carbon Nanotubes: Synthesis, Characterization and Applications by : Kamal K. Kar

Download or read book Carbon Nanotubes: Synthesis, Characterization and Applications written by Kamal K. Kar and published by Research Publishing Service. This book was released on 2011 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Understanding Carbon Nanotubes

Author : Annick Loiseau
Publisher : Springer
ISBN 13 : 3540375864
Total Pages : 564 pages
Book Rating : 4.5/5 (43 download)

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Book Synopsis Understanding Carbon Nanotubes by : Annick Loiseau

Download or read book Understanding Carbon Nanotubes written by Annick Loiseau and published by Springer. This book was released on 2006-08-29 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents the foundations of carbon nanotube science, reviewing recent developments and prospects for practical application. Each chapter summarizes relevant concepts from physics, chemistry or materials science, followed by detailed reports on topics including polymorphism and mircostructure of carbon; synthesis and growth; structural analysis by electron microscopy; spectroscopic methods; electronic structure; transport; mechanical and surface properties of nanotubes and composites.

Point Defects in Carbon Nanostructures Studied by In-situ Electron Microscopy

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (697 download)

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Book Synopsis Point Defects in Carbon Nanostructures Studied by In-situ Electron Microscopy by :

Download or read book Point Defects in Carbon Nanostructures Studied by In-situ Electron Microscopy written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In the present work, the formation and migration of point defects induced by electron irradiation in carbon nanostructures, including carbon onions, nanotubes and graphene layers, were investigated by in-situ TEM. The mobility of carbon atoms normal to the layers in graphitic nanoparticles, the mobility of carbon interstitials inside SWCNTs, and the migration of foreign atoms in graphene layers or in layers of carbon nanotubes were studied. The diffusion of carbon atoms in carbon onions was investigated by annealing carbon onions and observing the relaxation of the compressed clusters in the temperature range of 1200 - 2000oC. An activation energy of 5.0±0.3 eV was obtained. This rather high activation energy for atom exchange between the layers not only prevents the exchange of carbon atoms between the layers at lower temperature but also explains the high morphological and mechanical stability of graphite nanostructures. The migration of carbon atoms in SWCNTs was investigated quantitatively by cutting SWCNT bundles repeatedly with a focused electron beam at different temperatures. A migration barrier of about 0.25 eV was obtained for the diffusion of carbon atoms inside SWCNTs. This is an experimental confirmation of the high mobility of interstitial atoms inside carbon nanotubes, which corroborates previously developed theoretical models of interstitial diffusivity. Individual Au and Pt atoms in one- or two-layered graphene planes and MWCNTs were monitored in real time at high temperatures by high-resolution TEM. The direct observation of the behavior of Au and Pt atoms in graphenic structures in a temperature range of 600 - 700°C allows us to determine the sites occupied by the metal atoms in the graphene layer and the diffusivities of the metal atoms. It was found that metal atoms were located in single or multiple carbon vacancies, not in off-plane positions, and diffused by site exchange with carbon atoms. Metal atoms showed a tendency to form clusters those.

Conduction in Carbon Nanotube Networks

Author : Robert A. Bell
Publisher : Springer
ISBN 13 : 331919965X
Total Pages : 178 pages
Book Rating : 4.3/5 (191 download)

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Book Synopsis Conduction in Carbon Nanotube Networks by : Robert A. Bell

Download or read book Conduction in Carbon Nanotube Networks written by Robert A. Bell and published by Springer. This book was released on 2015-06-13 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis exploits the ability of the linear-scaling quantum mechanical code ONETEP to analyze systems containing many thousands of atoms. By implementing an electron transport capability to the code, it also investigates a range of phenomena associated with electrical conduction by nanotubes and, in particular, the process of transport electrons between tubes. Extensive work has been done on the conductivity of single carbon nanotubes. However, any realistic wire made of nanotubes will consist of a large number of tubes of finite length. The conductance of the resulting wire is expected to be limited by the process of transferring electrons from one tube to another.These quantum mechanical calculations on very large systems have revealed a number of incorrect claims made previously in the literature. Conduction processes that have never before been studied at this level of theory are also investigated.

Aligned Carbon Nanotubes

Author : Zhifeng Ren
Publisher : Springer Science & Business Media
ISBN 13 : 3642304907
Total Pages : 310 pages
Book Rating : 4.6/5 (423 download)

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Book Synopsis Aligned Carbon Nanotubes by : Zhifeng Ren

Download or read book Aligned Carbon Nanotubes written by Zhifeng Ren and published by Springer Science & Business Media. This book was released on 2012-09-05 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a survey of the physics and fabrication of carbon nanotubes and their applications in optics, electronics, chemistry and biotechnology. It focuses on the structural characterization of various carbon nanotubes, fabrication of vertically or parallel aligned carbon nanotubes on substrates or in composites, physical properties for their alignment, and applications of aligned carbon nanotubes in field emission, optical antennas, light transmission, solar cells, chemical devices, bio-devices, and many others. Major fabrication methods are illustrated in detail, particularly the most widely used PECVD growth technique on which various device integration schemes are based, followed by applications such as electrical interconnects, nanodiodes, optical antennas, and nanocoax solar cells, whereas current limitations and challenges are also be discussed to lay the foundation for future developments.

Carbon Nanotubes

Author : Jose Mauricio Marulanda
Publisher : BoD – Books on Demand
ISBN 13 : 9533074965
Total Pages : 574 pages
Book Rating : 4.5/5 (33 download)

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Book Synopsis Carbon Nanotubes by : Jose Mauricio Marulanda

Download or read book Carbon Nanotubes written by Jose Mauricio Marulanda and published by BoD – Books on Demand. This book was released on 2011-08-01 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon nanotubes (CNTs), discovered in 1991, have been a subject of intensive research for a wide range of applications. In the past decades, although carbon nanotubes have undergone massive research, considering the success of silicon, it has, nonetheless, been difficult to appreciate the potential influence of carbon nanotubes in current technology. The main objective of this book is therefore to give a wide variety of possible applications of carbon nanotubes in many industries related to electron device technology. This should allow the user to better appreciate the potential of these innovating nanometer sized materials. Readers of this book should have a good background on electron devices and semiconductor device physics as this book presents excellent results on possible device applications of carbon nanotubes. This book begins with an analysis on fabrication techniques, followed by a study on current models, and it presents a significant amount of work on different devices and applications available to current technology.

Carbon Nanotube Science

Author : Peter J. F. Harris
Publisher : Cambridge University Press
ISBN 13 : 113947815X
Total Pages : 315 pages
Book Rating : 4.1/5 (394 download)

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Book Synopsis Carbon Nanotube Science by : Peter J. F. Harris

Download or read book Carbon Nanotube Science written by Peter J. F. Harris and published by Cambridge University Press. This book was released on 2009-03-19 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon nanotubes represent one of the most exciting research areas in modern science. These molecular-scale carbon tubes are the stiffest and strongest fibres known, with remarkable electronic properties, and potential applications in a wide range of fields. Carbon Nanotube Science is a concise, accessible book, presenting the basic knowledge that graduates and researchers need to know. Based on the successful Carbon Nanotubes and Related Structures, this book focuses solely on carbon nanotubes, covering the major advances made in recent years in this rapidly developing field. Chapters focus on electronic properties, chemical and bimolecular functionalisation, nanotube composites and nanotube-based probes and sensors. The book begins with a comprehensive discussion of synthesis, purification and processing methods. With its comprehensive coverage of this active research field, this book will appeal to researchers in a broad range of disciplines, including nanotechnology, engineering, materials science and physics.

Carbon Nanotubes and Related Structures

Author : Peter John Frederich Harris
Publisher : Cambridge University Press
ISBN 13 : 9780521005333
Total Pages : 298 pages
Book Rating : 4.0/5 (53 download)

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Book Synopsis Carbon Nanotubes and Related Structures by : Peter John Frederich Harris

Download or read book Carbon Nanotubes and Related Structures written by Peter John Frederich Harris and published by Cambridge University Press. This book was released on 2001-10-18 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a 1999 book on carbon nanotubes, one of the most exciting areas in materials chemistry.

Carbon Nanotubes

Author : M. Meyyappan
Publisher : CRC Press
ISBN 13 : 0203494938
Total Pages : 306 pages
Book Rating : 4.2/5 (34 download)

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Book Synopsis Carbon Nanotubes by : M. Meyyappan

Download or read book Carbon Nanotubes written by M. Meyyappan and published by CRC Press. This book was released on 2004-07-28 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon nanotubes, with their extraordinary mechanical and unique electronic properties, have garnered much attention in the past five years. With a broad range of potential applications including nanoelectronics, composites, chemical sensors, biosensors, microscopy, nanoelectromechanical systems, and many more, the scientific community is more moti

Perspective of Carbon Nanotubes

Author : Hosam El-Din Saleh
Publisher : BoD – Books on Demand
ISBN 13 : 1789844010
Total Pages : 250 pages
Book Rating : 4.7/5 (898 download)

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Book Synopsis Perspective of Carbon Nanotubes by : Hosam El-Din Saleh

Download or read book Perspective of Carbon Nanotubes written by Hosam El-Din Saleh and published by BoD – Books on Demand. This book was released on 2019-12-11 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon nanotubes belong to new nanomaterials and have been known for almost 20 years, but their history is somewhat lengthier. They have been identified as promising candidates for various applications.High-temperature preparation techniques are conventional techniques for the synthesis of carbon nanotubes using arc discharge or laser ablation, but today these methods are being replaced by low-temperature vapor deposition techniques, since orientation, alignment, nanotube length, diameter, purity, and density of carbon nanotubes can be precisely controlled. The synthesis of carbon nanotubes by chemical vapor deposition on catalyst arrays leads to nanotube models grown from specific sites on surfaces. The controlled synthesis of nanotubes opens up interesting possibilities in nanoscience and nanotechnologies, including electrical, mechanical and electromechanical properties and devices, chemical functionalization, surface chemistry and photochemistry, molecular sensors, and interfacing with moderate biological systems.Carbon nanotubes are used in many applications due to their unique electrical, mechanical, optical, thermal, and other properties. Conductive and high-strength composite materials, energy saving and energy conversion devices, sensors, visualization of field emissions and sources of radiation, means for storing hydrogen, and nanoscale semiconductor devices, probes, and interconnections are some of the many applications of carbon nanotubes.