Download or read book Scanning Tunneling Microscopy and Field Emission Studies of Carbon Nanostructures written by Philip Godfrey Collins and published by . This book was released on 1998 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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
Download or read book Roadmap of Scanning Probe Microscopy written by Seizo Morita and published by Springer Science & Business Media. This book was released on 2006-12-30 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scanning tunneling microscopy has achieved remarkable progress and become the key technology for surface science. This book predicts the future development for all of scanning probe microscopy (SPM). Such forecasts may help to determine the course ultimately taken and may accelerate research and development on nanotechnology and nanoscience, as well as all in SPM-related fields in the future.
Download or read book Theoretical Studies of Scanning Tunneling Microscopy and Electron Transport Through Nanostructures written by Khoonghong Khoo and published by . This book was released on 2007 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scanning Microscopy for Nanotechnology written by Weilie Zhou and published by Springer Science & Business Media. This book was released on 2007-03-09 with total page 533 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents scanning electron microscopy (SEM) fundamentals and applications for nanotechnology. It includes integrated fabrication techniques using the SEM, such as e-beam and FIB, and it covers in-situ nanomanipulation of materials. The book is written by international experts from the top nano-research groups that specialize in nanomaterials characterization. The book will appeal to nanomaterials researchers, and to SEM development specialists.
Download or read book Selected Topics in Nanoscience and Nanotechnology written by Andrew T. S. Wee and published by World Scientific. This book was released on 2009 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Selected Topics in Nanoscience and Nanotechnology contains a collection of papers in the subfields of scanning probe microscopy, nanofabrication, functional nanoparticles and nanomaterials, molecular engineering and bionanotechnology. Written by experts in their respective fields, it is intended for a general scientific readership who may be non-specialists in these subjects, but who want a reasonably comprehensive introduction to them. This volume is also suitable as resource material for a senior undergraduate or introductory graduate course in nanoscience and nanotechnology.The review articles have been published in journal COSMOS Vol 3 & 4.
Download or read book Field Emission Scanning Electron Microscopy written by Nicolas Brodusch and published by Springer. This book was released on 2017-09-25 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights what is now achievable in terms of materials characterization with the new generation of cold-field emission scanning electron microscopes applied to real materials at high spatial resolution. It discusses advanced scanning electron microscopes/scanning- transmission electron microscopes (SEM/STEM), simulation and post-processing techniques at high spatial resolution in the fields of nanomaterials, metallurgy, geology, and more. These microscopes now offer improved performance at very low landing voltage and high -beam probe current stability, combined with a routine transmission mode capability that can compete with the (scanning-) transmission electron microscopes (STEM/-TEM) historically run at higher beam accelerating voltage
Download or read book Development of New Probes Based on Carbon Nanocones for Near field Microscopies written by Germercy Paredes Guerrero and published by . This book was released on 2020 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Near-field microscopy allows studying the topography and the physical properties (electrical, mechanical, etc.) of a material surface at nanoscale. For such a purpose, the sample surface is scanned by a probe (or tip) which geometric characteristics (such as the apex radius and the aspect ratio) and the physical properties (mechanical, electrical, etc.) must be suitable to ensure a sufficient resolution and a reliable representation of the surface. However, the current probes have significant limitations regarding the resolution, the possible imaging artifacts, as well as their ability to be used in different modes (conductive and non-conductive). These limitations are caused mainly by the type of material used (for example silicon or silicon nitride, for standard probes, or carbon nanotubes), as well as by the manufacturing processes used to structure the geometry of the probes. In this work, we study the potential of carbon nanocones (graphenic carbonaceous morphology with conical shape with high aspect ratio and nanosized apex) for different modes of near-field microscopy. These nanocones exhibit excellent mechanical (strong C-C bond) and electrical properties. They have already been successfully tested and patented as electron emitters for the cold-field-emission guns which equip the most performing transmission electron microscopes. These various characteristics of the nanocones (aspect ratio, nanosized apex, conductivity, mechanical stability, strong atomic cohesion) and others (hydrophobicity, chemical inertia, multiscale micro-nano morphology ...), make that they could also constitute a promising solution for designing probes potentially superior to existing probes, either standard or more specific such as those in carbon nanotubes, for various types of near-field microscopy, in particular in terms of spatial resolution and durability. In the first part, this thesis is dedicated to the synthesis of individual carbon nanocones using an original synthesis method called ToF-CVD (Time of Flight Chemical Vapor Deposition). The work reveals complex formation mechanisms involving the heterogeneous phase nucleation mechanisms specific of the CVD deposition of pyrolytic carbon on the one hand, and well-known wetting mechanisms such the Plateau-Rayleigh instability on the other hand. The mounting of the nanocones on dedicated supports as probes for near-field microscopies is then carried out, followed by characterization studies (SEM, TEM, RAMAN spectroscopy) to assess their starting characteristics from the geometry and structure point of view, and their evolution under the operating conditions required for both the probe fabrication and for the different near-field microscopy modes studied. In a second part, the potentiality of carbon nanocones as probes for non-conductive modes such as topographic mode (atomic force microscopy - AFM) and "Peak Force Quantitative Nano Mechanical" (PF-QNM) mode, as well as for conductive modes such as scanning tunneling microscopy (STM), conductive atomic force microscopy (c-AFM), and Kelvin force microscopy (KFM) is evaluated. This evaluation is made on the basis of (i) performances; (ii) durability; (iii) versatility. The final goal is to compare the performance of the carbon nanocone probes with other commercial probes. Carbon nanocones reveal to truly be multimode probes with few existing counterparts nowadays. Improvements are needed and possible, for which directions are proposed
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.
Download or read book Carbon Filaments and Nanotubes Common Origins Differing Applications written by L.P. Biró and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 comprehensive review of current research activity, growth mechanisms, physical properties, industrial production, and applications. The structures are discussed using a unified approach, which helps to compare growth mechanisms, contrasting morphological differences, and detailing how novel properties depend on such differences.
Download or read book Characterization and Modification of Substrates for Scanning Tunneling Microscopy and Spectroscopy Studies of Nitrogen doped Carbon Nanotubes written by Hari Chandana Bellam and published by . This book was released on 2005 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Microscopy for Nanotechnology written by Nan Yao and published by Springer Science & Business Media. This book was released on 2006-07-12 with total page 745 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanostructured materials take on an enormously rich variety of properties and promise exciting new advances in micromechanical, electronic, and magnetic devices as well as in molecular fabrications. The structure-composition-processing-property relationships for these sub 100 nm-sized materials can only be understood by employing an array of modern microscopy and microanalysis tools. Handbook of Microscopy for Nanotechnology aims to provide an overview of the basics and applications of various microscopy techniques for nanotechnology. This handbook highlights various key microcopic techniques and their applications in this fast-growing field. Topics to be covered include the following: scanning near field optical microscopy, confocal optical microscopy, atomic force microscopy, magnetic force microscopy, scanning turning microscopy, high-resolution scanning electron microscopy, orientational imaging microscopy, high-resolution transmission electron microscopy, scanning transmission electron microscopy, environmental transmission electron microscopy, quantitative electron diffraction, Lorentz microscopy, electron holography, 3-D transmission electron microscopy, high-spatial resolution quantitative microanalysis, electron-energy-loss spectroscopy and spectral imaging, focused ion beam, secondary ion microscopy, and field ion microscopy.
Download or read book Scanning Tunneling Microscopy in Surface Science written by Michael Bowker and published by Wiley-VCH. This book was released on 2010-02-01 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here, top international authors in the field of STM and surface science present first-class contributions on this hot topic, bringing the reader up to date with the latest developments in this rapidly advancing field. The focus is on the nanoscale, particularly in relation to catalysis, involving developments in our understanding of the nature of the surfaces of oxides and nanoparticulate materials, as well as adsorption, and includes in-situ studies of catalysis on such model materials. Of high interest to practitioners of surface science, nanoscience, STM and catalysis.
Download or read book Characterisation of Carbon Nanotubes Using Transmission Electron Microscopy and Scanning Tunneling Microscopy written by Walter Knechtel and published by . This book was released on 1998 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scanning Probe Lithography written by Hyongsok T. Soh and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scanning Probe Lithography (SPL) describes recent advances in the field of scanning probe lithography, a high resolution patterning technique that uses a sharp tip in close proximity to a sample to pattern nanometer-scale features on the sample. SPL is capable of patterning sub-30nm features with nanometer-scale alignment registration. It is a relatively simple, inexpensive, reliable method for patterning nanometer-scale features on various substrates. It has potential applications for nanometer-scale research, for maskless semiconductor lithography, and for photomask patterning. The authors of this book have been key players in this exciting new field. Calvin Quate has been involved since the beginning in the early 1980s and leads the research time that is regarded as the foremost group in this field. Hyongsok Tom Soh and Kathryn Wilder Guarini have been the members of this group who, in the last few years, have brought about remarkable series of advances in SPM lithography. Some of these advances have been in the control of the tip which has allowed the scanning speed to be increased from mum/second to mm/second. Both non-contact and in-contact writing have been demonstrated as has controlled writing of sub-100 nm lines over large steps on the substrate surface. The engineering of a custom-designed MOSFET built into each microcantilever for individual current control is another notable achievement. Micromachined arrays of probes each with individual control have been demonstrated. One of the most intriguing new aspects is the use of directly-grown carbon nanotubes as robust, high-resolution emitters. In this book the authors concisely and authoritatively describe the historical context, the relevant inventions, and the prospects for eventual manufacturing use of this exciting new technology.
Download or read book Synthesis of Silicon germanium Nanowires and Field Emission Studies of 1 D Nanostructures written by Joonho Bae and published by . This book was released on 2007 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using the vapor-liquid-solid (VLS) growth method, silicon nanowires and germanium nanowires are grown. We find the high growth rate is responsible for the silicon nanowires with less growth defects when they are grown by use of silicon tetrachloride as a precursor and hydrogen as a carrier gas. Based on this funding, large area, high aspect ratio, h111i oriented silicon nanowires are successfully grown on Si (111) and Si (100). Novel growth mechanisms of VLS growth method were discovered in SiOx nanoflowers and silicon nanocones. In SiOx nanoflowers grown at the tip of silicon nanowires, it is found that they are produced via the enhanced oxidation of silicon at the gold-silicon interface. Furthermore, the analysis of the flower pattern reveals that it is the observation of the dense branching morphology on nanoscale and on spherical geometry. For the silicon nanocones, they are grown by the in situ etching of the catalysts of Ga/Al by HCl during the growth. Scanning electron microscopy (SEM), transmission electron microscopy (TEM) reveal that the nanocones are composed of amorphous silicon oxides and crystalline Si. Based on the similar chemistry of hydrogen reduction of SiCl4 for the growth of silicon nanowires, single crystalline germanium nanowires are grown by use of GeCl4 as a precursor and H2 as a carrier gas. As one of important application of one dimensional nanostructures, the field emission properties of 1-D nanostructures are explored. The field emission properties of a single graphite nanocone are measured in SEM. The inter-electrode separation is controlled using scanning tunneling microscopy (STM) approach method, allowing the precise and ne determination of the separation. Its Fowler-Nordheim plot shows it emits currents in accordance with the Fowler-Nordheim field emission. Its onset voltage, field enhancement factor show that its basic field emission parameters are comparable to those of a single carbon nanotube. It is observed that single nanocone is damaged after emitting a current of about 100 nA, which seems to be due to its hollow interior structure.
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.
