Download or read book Electronic Optical and Mechanical Characterization of Zero and One Dimensional Nanostructures written by Chi-Nung Ni and published by . This book was released on 2008 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: Low dimensional nanostructures have drawn tremendous interest owing to their remarkable electrical, optical, and mechanical properties, which can be used for novel electronics, energy approaches, and size/power efficient applications. Examples include quantized electrical conduction in single molecules (zero-dimension)/ semiconducting nanotubes (one-dimension). Additionally, nanotubes have been shown to have high mechanical stiffness/resilience, anisotropic optical absorption due to their one-dimensional morphology. Such aspects were investigated in detail in this thesis. In Chapter 1, a brief introduction to molecular electronics and the properties of single molecules such as Mn12 Acetate, and linear structures such as carbon nanotubes and their applications are addressed. The quantized electrical transport behavior and its optical dependence, of Mn12 Acetate have been studied through novel electro-migration assisted nano-junctions in Chapter 2. In Chapter 3, a comprehensive study of the synthesis of carbon nanotubes (CNTs) using thermal chemical vapor deposition (TCVD) is presented. The characterization in terms of nanotube length and quality were compared, as a function of synthesis temperature, gas mixture, types of substrate, etc., and a growth mechanism was then determined. An improved synthesis procedure was successfully proposed based on the study. In Chapter 4, the electrical transport behavior of SWCNTs, functionalized with different molecules (e.g., dodecyl, phenyl groups), were compared and investigated. The doping effects from those covalently bonded functional groups were manifested in the change in transport properties (e.g., p-, n-type, or metallic). The flexural rigidities (EIs) of MWCNT bundles were investigated through optical methods including laser transmission measurement and imaging techniques, in Chapter 5. The deflections of CNT bundles under fluid flow were monitored in situ and the flexural rigidities derived from the measured deflection through modified Stokes-Oseen formalisms. The potential of a CNT based gas flow sensor was demonstrated. In Chapter 6, the anisotropic optical absorption properties of MWCNTs were investigated and the absorption cross-sections, considering the misalignment of nanotube mats, were calculated and compared to those from SWCNTs. The nanotube diameter dependence of the optical absorption anisotropy was also studied. Chapter 7 summarizes the thesis.
Download or read book One Dimensional Nanostructures written by Tianyou Zhai and published by John Wiley & Sons. This book was released on 2012-10-19 with total page 857 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reviews the latest research breakthroughs and applications Since the discovery of carbon nanotubes in 1991, one-dimensional nanostructures have been at the forefront of nanotechnology research, promising to provide the building blocks for a new generation of nanoscale electronic and optoelectronic devices. With contributions from 68 leading international experts, this book reviews both the underlying principles as well as the latest discoveries and applications in the field, presenting the state of the technology. Readers will find expert coverage of all major classes of one-dimensional nanostructures, including carbon nanotubes, semiconductor nanowires, organic molecule nanostructures, polymer nanofibers, peptide nanostructures, and supramolecular nanostructures. Moreover, the book offers unique insights into the future of one-dimensional nanostructures, with expert forecasts of new research breakthroughs and applications. One-Dimensional Nanostructures collects and analyzes a wealth of key research findings and applications, with detailed coverage of: Synthesis Properties Energy applications Photonics and optoelectronics applications Sensing, plasmonics, electronics, and biosciences applications Practical case studies demonstrate how the latest applications work. Tables throughout the book summarize key information, and diagrams enable readers to grasp complex concepts and designs. References at the end of each chapter serve as a gateway to the literature in the field. With its clear explanations of the underlying principles of one-dimensional nanostructures, this book is ideal for students, researchers, and academics in chemistry, physics, materials science, and engineering. Moreover, One-Dimensional Nanostructures will help readers advance their own investigations in order to develop the next generation of applications.
Download or read book Optical Studies of Quantum Confined Nanostructures written by Anthony Nickolas Vamivakas and published by . This book was released on 2008 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Recent advances in material growth techniques have led to the laboratory realization of quantum confined nanostructures. By engineering the geometry of these systems it is possible to tailor their optical, electrical and vibrational properties. We now envision integrated electronic and optical devices potentially harnessing quantum mechanical properties of photons, electrons or even phonons. The realization of these next generation devices requires parallel advances in both electrical and optical characterization techniques. In this dissertation we study the optical properties of both zero-dimensional (0D) InAs/GaAs semiconductor quantum dots (QDs) and one-dimensional (1D) single wall carbon nanotubes (SWNTs). We utilize high resolution optical microscopy and spectroscopy techniques to experimentally study both individual QDs and SWNTs. The effect of quantum confinement on light-matter interaction in SWNTs is theoretically investigated. InAs QDs grown by Stranski-Krastanow self-assembly are buried in a GaAs matrix. The planar barriers presented by the dielectric boundary between the GaAs and the host medium limits the optical access to the InAs QDs. Incorporating a numerical aperture increasing microlens (NAIL) into a fiber-based confocal microscope we demonstrate improved ability to couple photons to and from a single InAs QD. With such immersion lens techniques we measure a record 12% extinction of a far-field laser by a single InAs QD. Even typical QD extinction of 6% is visible using a dc power-meter without the need for phase sensitive lock-in detection. This experimental advance will make possible the study of single QDs interacting with engineered vector laser beams. In the optical characterization of SWNTs, one-phonon resonant Raman scattering is employed to measure a tube's electronic resonances and determine the physical diameter and chirality of the tube under study. Recent work has determined excitons dominate the optical response of semiconducting SWNTs. We develop a theory to model the exciton mediated resonant Raman scattering cross-section from a 1D system looking for excitonic signatures in the scattering line shape. Additionally, we theoretically study phonon confinement to a 1D SWNT and use these results to extract the electron-phonon coupling in SWNTs from our Raman measurements. Knowledge of the electron-phonon coupling is a crucial piece of information to characterize a SWNTs electrical transport properties.
Download or read book Synthesis and Mechanical Characterization of One dimensional Nanostructures written by Huan Zhang and published by . This book was released on 2012 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Semiconductor Nanostructures for Optoelectronic Devices written by Gyu-Chul Yi and published by Springer Science & Business Media. This book was released on 2012-01-13 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the fabrication of optoelectronic nanodevices. The structures considered are nanowires, nanorods, hybrid semiconductor nanostructures, wide bandgap nanostructures for visible light emitters and graphene. The device applications of these structures are broadly explained. The book deals also with the characterization of semiconductor nanostructures. It appeals to researchers and graduate students.
Download or read book Molecular Dynamics Simulation of Nanostructured Materials written by Snehanshu Pal and published by CRC Press. This book was released on 2020-04-28 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molecular dynamics simulation is a significant technique to gain insight into the mechanical behavior of nanostructured (NS) materials and associated underlying deformation mechanisms at the atomic scale. The purpose of this book is to detect and correlate critically current achievements and properly assess the state of the art in the mechanical behavior study of NS material in the perspective of the atomic scale simulation of the deformation process. More precisely, the book aims to provide representative examples of mechanical behavior studies carried out using molecular dynamics simulations, which provide contributory research findings toward progress in the field of NS material technology.
Download or read book Optical Properties of Nanostructures written by Ying Fu and published by Pan Stanford Publishing. This book was released on 2011-08-08 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses electrons and photons in and through nanostructures by the first-principles quantum mechanical theories and fundamental concepts (a unified coverage of nanostructured electronic and optical components) behind nanoelectronics and optoelectronics, the material basis, physical phenomena, device physics, as well as designs and applications. The combination of viewpoints presented in the book can help foster further research and cross-disciplinary interaction needed to surmount the barriers facing future generations of technology design.
Download or read book Nanotechnology written by Muhammad Bilal Tahir and published by Springer Nature. This book was released on 2021-05-24 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the basic and fundamental aspects of nanomaterials, its types, and classifications with respect to different factors. It contains methods of preparation and characterization of unique nanostructured materials. Consisting of six chapters, this book appeals to a wide readership from academia and industry professionals and is also useful to undergraduate and graduate students focusing on nanotechnology and nanomaterials, sustainable chemistry, energy conversion and storage, environmental protection, opto-electronics, sensors, and surface and interface science. It also appeals to readers who wish to know about the design of new types of materials with controlled nanostructures.
Download or read book Polymer Science and Nanotechnology written by Ravin Narain and published by Elsevier. This book was released on 2020-06-16 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymer Science and Nanotechnology: Fundamentals and Applications brings together the latest advances in polymer science and nanoscience. Sections explain the fundamentals of polymer science, including key aspects and methods in terms of molecular structure, synthesis, characterization, microstructure, phase structure and processing and properties before discussing the materials of particular interest and utility for novel applications, such as hydrogels, natural polymers, smart polymers and polymeric biomaterials. The second part of the book examines essential techniques in nanotechnology, with an emphasis on the utilization of advanced polymeric materials in the context of nanoscience. Throughout the book, chapters are prepared so that materials and products can be geared towards specific applications. Two chapters cover, in detail, major application areas, including fuel and solar cells, tissue engineering, drug and gene delivery, membranes, water treatment and oil recovery. - Presents the latest applications of polymers and polymeric nanomaterials, across energy, biomedical, pharmaceutical, and environmental fields - Contains detailed coverage of polymer nanocomposites, polymer nanoparticles, and hybrid polymer-metallic nanoparticles - Supports an interdisciplinary approach, enabling readers from different disciplines to understand polymer science and nanotechnology and the interface between them
Download or read book Fundamentals and Properties of Multifunctional Nanomaterials written by Sabu Thomas and published by Elsevier. This book was released on 2021-08-25 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals and Properties of Multifunctional Nanomaterials outlines the properties of highly intricate nanosystems, including liquid crystalline nanomaterials, magnetic nanosystems, ferroelectrics, nanomultiferroics, plasmonic nanosystems, carbon-based nanomaterials, 1D and 2D nanomaterials, and bio-nanomaterials. This book reveals the electromagnetic interference shielding properties of nanocomposites. The fundamental attributes of the nanosystems leading to the multifunctional applications in diverse areas are further explored throughout this book. This book is a valuable reference source for researchers in materials science and engineering, as well as in related disciplines, such as chemistry and physics. - Explains the concepts and fundamental applications of a variety of multifunctional nanomaterials; - Introduces fundamental principles in the fields of magnetism and multiferroics; - Addresses ferromagnetics, multiferroics, and carbon nanomaterials.
Download or read book Green Synthesis of Nanomaterials for Bioenergy Applications written by Neha Srivastava and published by John Wiley & Sons. This book was released on 2020-09-01 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: An authoritative summary of the quest for an environmentally sustainable synthesis process of nanomaterials and their application for environmental sustainability Green Synthesis of Nanomaterials for Bioenergy Applications is an important guide that provides information on the fabrication of nanomaterial and the application of low cost, green methods. The book also explores the impact on various existing bioenergy approaches. Throughout the book, the contributors—noted experts on the topic—offer a reliable summary of the quest for an environmentally sustainable synthesis process of nanomaterials and their application to the field of environmental sustainability. The green synthesis of nanoparticles process has been widely accepted as a promising technique that can be applied to a variety of fields. The green nanotechnology-based production processes to fabricate nanomaterials operates under green conditions without the intervention of toxic chemicals. The book’s exploration of more reliable and sustainable processes for the synthesis of nanomaterials, can lead to the commercial application of the economically viability of low-cost biofuels production. This important book: Summarizes the quest for an environmentally sustainable synthesis process of nanomaterials for their application to the field of environmental sustainability Offers an alternate, sustainable green energy approach that can be commercially implemented worldwide Covers recent approaches such as fabrication of nanomaterial that apply low cost, green methods and examines its impact on various existing bioenergy applications Written for researchers, academics and students of nanotechnology, nanosciences, bioenergy, material science, environmental sciences, and pollution control, Green Synthesis of Nanomaterials for Bioenergy Applications is a must-have guide that covers green synthesis and characterization of nanomaterials for cost effective bioenergy applications.
Download or read book Emerging Trends in TiO2 Photocatalysis and Applications written by Trong-On Do and published by MDPI. This book was released on 2020-12-28 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: The semiconductor titanium dioxide (TiO2) has been evolved as a prototypical material to understand the photocatalytic process, and has been demonstrated for various photocatalytic applications such as pollutants degradation, water splitting, heavy metal reduction, CO2 conversion, N2 fixation, bacterial disinfection, etc. Rigorous photocatalytic studies on TiO2 have paved the way to understanding the various chemical processes involved and the physical parameters (optical and electrical) required to design and construct diverse photocatalytic systems. Accordingly, it has been realized that an effective photocatalyst should have ideal band edge potential, narrow band gap energy, reduced charge recombination, enhanced charge separation, improved interfacial charge transfer, surface-rich catalytic sites, etc. As a result, many strategies have been developed to design a variety of photocatalytic systems, which include doping, composite formation, sensitization, co-catalyst loading, etc. Towards highlighting the above-mentioned diversities in TiO2 photocatalysis, there have been many interesting original research works on TiO2, involving material designs for various photocatalytic applications published in this Special Issue. In addition, some excellent review papers have also been published in this Special Issue, focusing on the various TiO2-based photocatalytic systems and their mechanisms and applications.
Download or read book Soft Matter Nanotechnology written by Xiaodong Chen and published by John Wiley & Sons. This book was released on 2015-04-10 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using the well-honed tools of nanotechnology, this book presents breakthrough results in soft matter research, benefitting from the synergies between the chemistry, physics, biology, materials science, and engineering communities. The team of international authors delves beyond mere structure-making and places the emphasis firmly on imparting functionality to soft nanomaterials with a focus on devices and applications. Alongside reviewing the current level of knowledge, they also put forward novel ideas to foster research and development in such expanding fields as nanobiotechnology and nanomedicine. As such, the book covers DNA-induced nanoparticle assembly, nanostructured substrates for circulating tumor cell capturing, and organic nano field effect transistors, as well as advanced dynamic gels and self-healing electronic nanodevices. With its interdisciplinary approach this book gives readers a complete picture of nanotechnology with soft matter.
Download or read book Two Dimensional Nanostructures for Biomedical Technology written by Raju Khan and published by Elsevier. This book was released on 2019-11-05 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two Dimensional Nanostructures for Biomedical Technology: A Bridge between Materials Science and Bioengineering helps researchers to understand the promising aspects of two dimensional nanomaterials. Sections cover the biomedical applications of such nanostructures in terms of their precursors, structures, morphology and size. Further, detailed synthetic methodologies guide the reader towards the efficient generation of two dimensional nanostructures. The book encompasses the vital aspects of two dimensional nanomaterials in context of their utility in biomedical technology, thus presenting a thorough guide for researchers in this area. - Details the latest on the structure, morphology and shape-size accords of two dimensional nanomaterials - Includes synthetic strategies with feasibility for sustainability - Reports on two dimensional nanostructures in biomedical technology, including bio-imaging, biosensing, drug delivery and tissue engineering
Download or read book Electroplating of Nanostructures written by Mahmood Aliofkhazraei and published by BoD – Books on Demand. This book was released on 2015-12-02 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: The electroplating was widely used to electrodeposit the nanostructures because of its relatively low deposition temperature, low cost and controlling the thickness of the coatings. With advances in electronics and microprocessor, the amount and form of the electrodeposition current applied can be controlled. The pulse electrodeposition has the interesting advantages such as higher current density application, higher efficiency and more variable parameters compared to direct current density. This book collects new developments about electroplating and its use in nanotechnology.
Download or read book 2D Boron Nanosheets written by Raju Khan and published by Springer Nature. This book was released on with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Silicon Nanomaterials Sourcebook written by Klaus D. Sattler and published by CRC Press. This book was released on 2017-07-28 with total page 643 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive tutorial guide to silicon nanomaterials spans from fundamental properties, growth mechanisms, and processing of nanosilicon to electronic device, energy conversion and storage, biomedical, and environmental applications. It also presents core knowledge with basic mathematical equations, tables, and graphs in order to provide the reader with the tools necessary to understand the latest technology developments. From low-dimensional structures, quantum dots, and nanowires to hybrid materials, arrays, networks, and biomedical applications, this Sourcebook is a complete resource for anyone working with this materials: Covers fundamental concepts, properties, methods, and practical applications. Focuses on one important type of silicon nanomaterial in every chapter. Discusses formation, properties, and applications for each material. Written in a tutorial style with basic equations and fundamentals included in an extended introduction. Highlights materials that show exceptional properties as well as strong prospects for future applications. Klaus D. Sattler is professor physics at the University of Hawaii, Honolulu, having earned his PhD at the Swiss Federal Institute of Technology (ETH) in Zurich. He was honored with the Walter Schottky Prize from the German Physical Society, and is the editor of the sister work also published by Taylor & Francis, Carbon Nanomaterials Sourcebook, as well as the acclaimed multi-volume Handbook of Nanophysics.
