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Author: Zhong-lin Wang
Publisher: Springer Science & Business Media
ISBN: 1461503159
Category : Technology & Engineering
Languages : en
Pages : 315
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Book Description
Written by prominent scientists, this book is the first to specifically address the theory, techniques, and application of electron microscopy and associated techniques for nanotube research, a topic that is impacting a variety of fields, such as nanoelectronics, flat panel display, nanodevices, and novel instrumentation.
Author: Zhong-lin Wang
Publisher: Springer Science & Business Media
ISBN: 1461503159
Category : Technology & Engineering
Languages : en
Pages : 315
Get Book Here
Book Description
Written by prominent scientists, this book is the first to specifically address the theory, techniques, and application of electron microscopy and associated techniques for nanotube research, a topic that is impacting a variety of fields, such as nanoelectronics, flat panel display, nanodevices, and novel instrumentation.
Author: Dai-Ming Tang
Publisher: Springer Science & Business Media
ISBN: 3642372597
Category : Technology & Engineering
Languages : en
Pages : 131
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Book Description
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.
Author: Zhong Lin Wang
Publisher:
ISBN: 9781461503163
Category :
Languages : en
Pages : 328
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Book Description
Author: Florian Banhart
Publisher: World Scientific
ISBN: 9812797335
Category : Science
Languages : en
Pages : 318
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Book Description
In-situ high-resolution electron microscopy is a modern and powerful technique in materials research, physics, and chemistry. In-situ techniques are hardly treated in textbooks of electron microscopy. Thus, there is a need to collect the present knowledge about the techniques and achievements of in-situ electron microscopy in one book. Since high-resolution electron microscopes are available in most modern laboratories of materials science, more and more scientists or students are starting to work on this subject.In this comprehensive volume, the most important techniques and achievements of in-situ high-resolution electron microscopy will be reviewed by renowned experts. Applications in several fields of materials science will also be demonstrated.
Author: Sarah Louise Cullen
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Elzbieta Pach
Publisher:
ISBN: 9788449074332
Category :
Languages : en
Pages : 256
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Book Description
La presente tesis doctoral se centra en el estudio exhaustivo de nanotubos de carbono funcionales por medio de técnicas de microscopía electrónica. Los nanotubos de carbono (CNTs) funcionales están atrayendo una creciente atención debido a su potencial uso para aplicaciones biomédicas, incluyendo para la adquisición de imágenes in vivo, acumulación selectiva en tumores y sistemas de administración de fármacos. Una ventaja intrínseca de los nanotubos de carbono es que su cavidad interna puede llenarse con una carga útil de interés mientras que la superficie externa puede modificarse para mejorar su dispersabilidad y biocompatibilidad. Debido a su potencial aplicación en el campo biomédico, es esencial una caracterización detallada de las muestras en todas las etapas de su proceso de preparación (purificación, acortamiento, llenado y funcionalidad externa). Para lograr este objetivo, en esta tesis doctoral hemos empleado tanto los análisis ya establecidos que incluye microscopía electrónica de transmisión de alta resolución para estudiar la estructura del material de relleno o espectroscopia de dispersión de energía de rayos X para evaluar su composición, pero también hemos explorado el uso de otras técnicas para ampliar las posibilidades de caracterización de las muestras. En este sentido, hemos optimizado las condiciones para el estudio de las longitudes de CNTs monocapa purificados por microscopía electrónica de barrido de alta resolución (HRSEM) con sensibilidad superficial. Además, la microscopía electrónica de transmisión y barrido (STEM) a bajos voltajes se ha demostrado como una técnica eficiente y rápida para evaluar el rendimiento del rellenado y la pureza del material. De hecho, la combinación de alta resolución espacial y el trabajo a bajos voltajes de esta técnica la ha hecho particularmente adecuada para el estudio de la interacción de nanotubos de carbono funcionales con muestras biológicas, como por ejemplo células. Algunos de los compuestos con interés para aplicaciones biomédicas empleados en este trabajo tienen una estructura laminar. Se sabe que los materiales laminares forman monocapas que pueden tener propiedades mejoradas o nuevas debido a efectos de confinamiento. Los CNT pueden actuar como plantillas para guiar los materiales laminares a formar nanotubos monocapa. Este es el caso de los haluros de lutecio y el yoduro de plomo. En esta tesis de doctorado hemos conseguido la formación de nanotubos de haluros de lutecio de tamaño subnanométrico, y su naturaleza tubular se ha demostrado mediante STEM con corrector de aberraciones y simulaciones de imagen. Además, se ha logrado el crecimiento con alto rendimiento de nanotubos de PbI2 en el exterior de CNTs. La estructura de los híbridos se ha revelado mediante STEM con aberración corregida y tomografía electrónica. Cabe destacar que las propiedades ópticas de los híbridos difieren de las del PbI2 en masa. El desplazamiento azul observado por fotoluminiscencia se ha confirmado mediante análisis en híbridos PbI2-CNT individuales por catodoluminiscencia-STEM. En conclusión, durante este proyecto de doctorado la gama de técnicas de microscopía electrónica utilizadas para el estudio de CNT funcionales se ha ampliado para obtener una caracterización exhaustiva de las muestras.
Author: Nan Yao
Publisher: Springer Science & Business Media
ISBN: 1402080069
Category : Technology & Engineering
Languages : en
Pages : 745
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Book Description
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.
Author: Weilie Zhou
Publisher: Springer Science & Business Media
ISBN: 0387396209
Category : Technology & Engineering
Languages : en
Pages : 533
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Book Description
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.
Author: Khan Maaz
Publisher: BoD – Books on Demand
ISBN: 9535121502
Category : Science
Languages : en
Pages : 362
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Book Description
This book The Transmission Electron Microscope abundantly illustrates necessary insight and guidance of this powerful and versatile material characterization technique with complete figures and thorough explanations. The second edition of the book presents deep understanding of new techniques from introduction to advance levels, covering in-situ transmission electron microscopy, electron and focused ion beam microscopy, and biological diagnostic through TEM. The chapters cover all major aspects of transmission electron microscopy and their uses in material characterization with special emphasis on both the theoretical and experimental aspects of modern electron microscopy techniques. It is believed that this book will provide a solid foundation of electron microscopy to the students, scientists, and engineers working in the field of material science and condensed matter physics.
Author: Royal Society of Chemistry (Great Britain)
Publisher: Royal Society of Chemistry
ISBN: 0854042415
Category : Science
Languages : en
Pages : 319
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Book Description
Nanocharacterisation is a rapidly developing field. Contributions in this book from across the globe provide an overview of the different microscopic techniques for the characterisation of nanostructures.
