Download or read book Parallel Fabrication and Optoelectronic Characterization of Nanostructured Surfaces written by and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Among the more notable accomplishments during the course of this contract we identify the following results: (1) We have used diblock copolymers to transfer nanoscale periodic patterns to substrates. The nanopatterns have been transferred both in the form of etched holes and in arrays of metal dots. This has been performed without the need for silicon nitride layers or multi-layered resists. (2) We have conducted experiments using a closed-loop MM to measure the coefficient of thermal expansion (CTE) of a reference material. We have found that the piezo scanner non-linearity (0.2%) is unacceptably large for metrologic MM Moire interferometry. We have ordered a new closed-loop MM that incorporates a flexure-based scanner with a nonlinearity of 0.05%. The new instrumentation will allow us to overcome the piezo non-linearity difficulties, and (3) We have demonstrated a method for utilizing nanomasks for pattern transfer to an arbitrary substrate via an intermediate transfer layer (ITL). This approach is distinct from the technique of applying the nanomasks directly to the surface to be patterned. The ITL is a layer of a resist-like material into which the bionanomask pattern is transferred before it is then transferred to the substrate.
Download or read book Parallel Fabrication and Electronic Characterization of Nanostructured and Nanoheterostructured Metal Surfaces written by and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Among the more notable accomplishments during the course% of this contract we identify the following results: 0 A precisely ordered and precisely located array of 5 nm diameter nanoclusters has been fabricated by first etching into the substrate an array of holes with diameters comparable to the size of nanoclusters sought and then depositing adatoms on the substrate. Our methods enable rapid fabrication of arrays for fundamental studies and provide a route to manufacturability of nanostructure arrays for technological purposes. We reported the ability to control the morphology of nanometer thick Ti oxide films which were created via a parallel nanofabrication process using a two-dimensional protein crystal as a template. Atomic force microscopy was used to examine the evolution of these structures from a periodic array of nanometer-scale dots (nanodots) to a screen containing a periodic array of nanometer-scale holes (nanoscreen) as the film thickness was increased. We reported the creation of large arrays of nanometer-scale dots (nanodot arrays) with the oxides of several additional metals near Ti in the periodic table. A computer simulation of nanoscale hole formation based on curvature dependent sputtering and surface self-diffusion was formulated. The model simulates the experimental data from our nanopatterning process quite well.
Download or read book Fabrication and Characterization of Nanostructured Surfaces written by Aaron Halpern and published by . This book was released on 2013 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work demonstrates a method for enhancing the sensitivity of a surface plasmon resonance biosensor, and develops novel nanostructured sensing surfaces. It is divided into the following four sections: Surface plasmon resonance phase imaging on gold thin films, optical diffraction of gold nanowires, fabrication of plasmonic nanoring arrays, and fabrication of nanofluidic channels and networks. The technique of surface plasmon resonance phase imaging (SPR-PI) was implemented in a linear microarray format. SPR-PI measured the phase shift of p-polarized light incident at the SPR angle reflected from a gold thin film by monitoring the position of a fringe pattern on the interface created with a polarizer- wedge depolarizer combination. SPR-PI was used to measure a self-assembled monolayer of 11-mercaptoundecamine (MUAM) as well as to monitor in situ DNA hybridization. The phase shifts were correctly calculated with a combined Jones matrix and Fresnel equation theory. Arrays of Au or Pd nanowires were fabricated via the electrochemical process of lithographically patterned nanowire electrodeposition (LPNE) and then characterized with scanning electron microscopy (SEM) and a series of optical diffraction measurements. Up to 60 diffraction orders were observed from the nanowire gratings with separate oscillatory intensity patterns appearing in the even and odd diffraction orders. The presence of these intensity oscillations is attributed to LPNE array fabrication process, and is explained with the Fourier transform of a mathematical model to predict the diffraction intensity patterns. A novel nanoring fabrication method that combines the process of LPNE with colloidal lithography is described. SEM measurements and Fourier transform near infrared (FT-NIR) absorption spectroscopy were used to characterize the strong NIR plasmonic resonance of the nanoring arrays. The absorption maximum wavelength varied linearly from 1.25 to 3.33 microns as predicted by a simple standing wave model linear antenna theory. This nanoring array fabrication method was also used to electrodeposit concentric double gold nanoring arrays that exhibited multiple NIR plasmonic resonances. Arrays and networks of nanochannels were created in PDMS from LPNE nanowires in a master-replica process and characterized with SEM, AFM and fluorescence imaging measurements. The PDMS replica was bonded to a glass substrate to create linear arrays of nanofluidic channels that filled with a 99% successful rate as determined from fluorescence imaging and the electrophoretic injection of both dye and nanoparticles. A double LPNE fabrication method was also used to create two-dimensional networks of crossed nanofluidic channels.
Download or read book Epitaxy of Nanostructures written by Vitaly Shchukin and published by Springer. This book was released on 2010-12-04 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main focus of the book are the physical mechanisms behind the spontaneous formation of ordered nanostructures at semiconductor surfaces. These mechanisms are at the root of recent breakthroughs in advanced nanotechnology of quantum-wire and quantum-dot fabrication. Generic theoretical models are presented addressing formation of all basic types of nanostructures, including periodically faceted surfaces, arrays of step-bunches of equal heights and single- and multi-sheet arrays of both 2- and 3-D strained islands. Decisive experiments on both structural and optical characterization of nanostructures are discussed to verify theoretical models and link them to practical examples.
Download or read book Characterization of Semiconductor Heterostructures and Nanostructures written by Giovanni Agostini and published by Newnes. This book was released on 2013-04-11 with total page 829 pages. Available in PDF, EPUB and Kindle. Book excerpt: Characterization of Semiconductor Heterostructures and Nanostructures is structured so that each chapter is devoted to a specific characterization technique used in the understanding of the properties (structural, physical, chemical, electrical etc..) of semiconductor quantum wells and superlattices. An additional chapter is devoted to ab initio modeling. The book has two basic aims. The first is educational, providing the basic concepts of each of the selected techniques with an approach understandable by advanced students in Physics, Chemistry, Material Science, Engineering, Nanotechnology. The second aim is to provide a selected set of examples from the recent literature of the TOP results obtained with the specific technique in understanding the properties of semiconductor heterostructures and nanostructures. Each chapter has this double structure: the first part devoted to explain the basic concepts, and the second to the discussion of the most peculiar and innovative examples. The topic of quantum wells, wires and dots should be seen as a pretext of applying top level characterization techniques in understanding the structural, electronic etc properties of matter at the nanometer (and even sub-nanometer) scale. In this respect it is an essential reference in the much broader, and extremely hot, field of Nanotechnology. Comprehensive collection of the most powerful characterization techniques for semiconductors heterostructures and nanostructures Most of the chapters are authored by scientists that are world-wide among the top-ten in publication ranking of the specific field Each chapter starts with a didactic introduction on the technique The second part of each chapters deals with a selection of top examples highlighting the power of the specific technique to analyse the properties of semiconductors heterostructures and nanostructures
Download or read book Frontiers of Nano Optoelectronic Systems written by Lorenzo Pavesi and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since their discovery, low dimensional materials have never stopped to intrigue scientists, whether they are physicists, chemists, or biochemists. Investigations of their nature and functions have always been and still are numerous and as soon as a solution is found for a given question, another one is raised. The coupling of nano-materials with photonics, i. e. nano-photonics, has produced a boiling pot of idea, problems, discovery and applications. This statement is abundantly illustrated in the present book. The interest in nano-optoelectronic materials and systems is very widespread, what gives a really international and multicultural flavour to nano-optoelectronic meetings. One of them was organized by our-self in May 2000 in Kiev as a NATO Advanced Research Workshop and EC-Spring School. The arrival of the new millennium provides an obvious transition point at which many aspects of nano-science and nano-engineering of nano photonic systems can be assessed with respect to the research progresses made in the pre ceding decades and to the challenges that lie ahead in the coming decades. This book was planed to mark this with the objective of presenting a collection of papers from experts, which provide broad perspectives on the state-of-the-art in the various disciplines of nano science and nano-engineering and on the directions for future research.
Download or read book 21st Century Nanoscience written by Klaus D. Sattler and published by CRC Press. This book was released on 2022-01-18 with total page 4153 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 21st Century Nanoscience Handbook will be the most comprehensive, up-to-date large reference work for the field of nanoscience. Handbook of Nanophysics, by the same editor, published in the fall of 2010, was embraced as the first comprehensive reference to consider both fundamental and applied aspects of nanophysics. This follow-up project has been conceived as a necessary expansion and full update that considers the significant advances made in the field since 2010. It goes well beyond the physics as warranted by recent developments in the field. Key Features: Provides the most comprehensive, up-to-date large reference work for the field. Chapters written by international experts in the field. Emphasises presentation and real results and applications. This handbook distinguishes itself from other works by its breadth of coverage, readability and timely topics. The intended readership is very broad, from students and instructors to engineers, physicists, chemists, biologists, biomedical researchers, industry professionals, governmental scientists, and others whose work is impacted by nanotechnology. It will be an indispensable resource in academic, government, and industry libraries worldwide. The fields impacted by nanoscience extend from materials science and engineering to biotechnology, biomedical engineering, medicine, electrical engineering, pharmaceutical science, computer technology, aerospace engineering, mechanical engineering, food science, and beyond.
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 Proceedings of the Fourth International Symposium on Quantum Confinement written by M. Cahay and published by The Electrochemical Society. This book was released on 1997 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Focus on Nanotechnology Research written by Eugene V. Dirote and published by Nova Publishers. This book was released on 2004 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanotechnology is a 'catch-all' description of activities at the level of atoms and molecules that have applications in the real world. A nanometer is a billionth of a meter, about 1/80,000 of the diameter of a human hair, or 10 times the diameter of a hydrogen atom. Nanotechnology is now used in precision engineering, new materials development as well as in electronics; electromechanical systems as well as mainstream biomedical applications in areas such as gene therapy, drug delivery and novel drug discovery techniques. This book presents the latest research in this frontier field. Contents: Preface; Electrospinning: A Novel Method for Metal Oxide Fibres; Nanofocusing Probe Optimisation in a Near-Field Head for an Ultra-High Density Optical Memory; Molecular Dynamics Simulation of Metallic Nanocluster Interfaces; Pre- and Post-Breakdown Conduction of Thin SiO2 Gate Oxides of MOS Devices: A Conductive Atomic Force Microscope Study; Topographic and Electrical Characterisation of Afm-Grown SiO2 on Si; Solvothermal Route used to Synthesize BN Nanocrystals and the Catalytic Effect of BN Nanocrystals; Covalently Attached Multilayer Self-Assembly Films and Micropatterns Comprising Metal
Download or read book Computational Sciences written by Ponnadurai Ramasami and published by Walter de Gruyter GmbH & Co KG. This book was released on 2017-10-23 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eleven carefully selected, peer-reviewed contributions from the Virtual Conference on Computational Science (VCCS-2016) are featured in this edited book of proceedings. VCCS-2016, an annual meeting, was held online from 1st to 31st August 2016. The theme of the conference was "Computational Thinking for the Advancement of Society" and it matched the paradigm shift in the way we think. VCCS-2016 was attended by 100 participants from 20 countries. The chapters reflect a wide range of fundamental and applied research applying computational methods.
Download or read book 21st Century Nanoscience A Handbook written by Klaus D. Sattler and published by CRC Press. This book was released on 2020-04-22 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 21st Century Nanoscience Handbook will be the most comprehensive, up-to-date large reference work for the field of nanoscience. Handbook of Nanophysics by the same editor published in the fall of 2010 and was embraced as the first comprehensive reference to consider both fundamental and applied aspects of nanophysics. This follow-up project has been conceived as a necessary expansion and full update that considers the significant advances made in the field since 2010. It goes well beyond the physics as warranted by recent developments in the field. This ninth volume in a ten-volume set covers industiral applications. Key Features: Provides the most comprehensive, up-to-date large reference work for the field. Chapters written by international experts in the field. Emphasises presentation and real results and applications. This handbook distinguishes itself from other works by its breadth of coverage, readability and timely topics. The intended readership is very broad, from students and instructors to engineers, physicists, chemists, biologists, biomedical researchers, industry professionals, governmental scientists, and others whose work is impacted by nanotechnology. It will be an indispensable resource in academic, government, and industry libraries worldwide. The fields impacted by nanophysics extend from materials science and engineering to biotechnology, biomedical engineering, medicine, electrical engineering, pharmaceutical science, computer technology, aerospace engineering, mechanical engineering, food science, and beyond.
Download or read book Nanotechnology written by Lifeng Chi and published by John Wiley & Sons. This book was released on 2010-08-09 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: This front line reference investigates nanostructured surfaces, invisible to the naked eye. Machinery and processes explained in a logical fashion. Students and professionals will benefit from the knowledge imparted by the prominent authors.
Download or read book Wetting and Wettability written by Mahmood Aliofkhazraei and published by BoD – Books on Demand. This book was released on 2015-12-16 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: On the liquid 's surface, the molecules have fewer neighbors in comparison with the bulk volume. As a result, the energy interaction shows itself in the surface tension. Traditionally, the surface tension can be assumed as a force in the unit of the length which can be counted by the unit of Newton on squared meter, or energy on the units of the surface. The surface tension, implies the interface between liquid and vapor, which is an example of the surface tensions. The equilibrium between these surface tensions, decides that a droplet on a solid surface, would have a droplet form or will change to layer form. This book collects new developments in wetting and wettability science.
Download or read book An Introduction to Green Nanotechnology written by Mahmoud Nasrollahzadeh and published by Academic Press. This book was released on 2019-02-19 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: An Introduction to Green Nanotechnology, Volume 28, provides students, scientists and chemical engineers with an overview of several types of nanostructures, discusses the synthesis and characterization of nanostructures, and provides applications of nanotechnology in daily life. The book offers a foundation to green nanotechnology by explaining why green nanotechnology is important. Covers biological sources in green nanotechnology, antioxidants, green nanostructures, mechanism, synthesis and characterization. The book ends with an evaluation of the risks of nanotechnology in human life and future perspectives. - Introduces novel sources of plants having a high potential to be used as bio media to synthesize nanostructures - Provides phytochemical properties and antioxidant potential, and their effects on stability, morphology and size of green nanostructures - Includes a medicinal and technological comparison of green synthesized nanostructures to nano-products from non-green methods - Uses accessible language, avoiding complex concepts of mathematics, biology and chemistry
Download or read book Plasmonic Metal Nanostructures written by Caixia Kan and published by John Wiley & Sons. This book was released on 2024-02-20 with total page 469 pages. Available in PDF, EPUB and Kindle. Book excerpt: Firsthand insights on a unique class of optoelectronic materials, covering technologies and applications in catalysis, sensing, and spectroscopy Plasmonic Metal Nanostructures provides broad coverage of the field of plasmonic technologies, from fundamentals to real-world applications such as highly sensitive spectroscopy and surface analysis techniques, summarizing the recent progress in plasmonics and their applications, with a focus on comprehensive and authoritative discussions of fabrication and characterization of the materials and their technological uses. The text also addresses current trends and advances in materials for plasmonics, such as nanostructures with novel shapes, composite nanostructures, and thin films. Starting with an overview of optical properties in materials from macro- to micro- and nanoscale, the text then moves on to discuss the fundamentals and dielectric modifications and advanced characterization methods of plasmonic nanostructures. Next, the latest development of metal nanostructures, such as core-shell and porous nanorods, nanowires for conductive films, new star-like nanoplates, different open nanostructures, and metal-semiconductor composite nanostructures, are explained in detail. The final portion of the text discusses applications of plasmonics for semiconductor optoelectronic devices, catalysis, sensing, SERS (surface-enhanced Raman Spectroscopy), and energy. Written by a highly qualified academic, Plasmonic Metal Nanostructures covers sample topics such as: Drude model for free electron gas, dielectric function of the free electron gas, surface plasmon polaritons, plasmon at metal-vacuum interface, and surface plasmon effects Drude-Lorentz model of metal nanoparticles, dielectric properties of complex nanostructures, optical property analysis of isolated nanoparticles, and numerical simulation of optical properties One-dimensional Au nanostructures, core-shell nanostructures, alloy Au/Ag nanorods, porous nanorods, and yolk-shell nanostructures FCC nanoplates, Au nanoplates with novel and well-defined shapes, metal decorated semiconductors, and optical properties of Au NBP-embedded nanostructures Providing complete coverage of plasmonic nanostructures and their applications in catalysis, sensing, spectroscopy, thin-film, analysis, optoelectronics, and a variety of other fields. The book about Plasmonic Metal Nanostructures is an essential resource for materials scientists, physics researchers and photochemists, along with catalytic, biomedical, and physical chemists.
Download or read book Nanostructured and Advanced Materials for Applications in Sensor Optoelectronic and Photovoltaic Technology written by Ashok K. Vaseashta and published by Springer Science & Business Media. This book was released on 2007-04-29 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: The principal aim of this NATO Advanced Study Institute (ASI) "Nanostructured and Advanced Materials for Applications in Sensor, Optoelectronic and Photovoltaic Technology" was to present a contemporary overview of the field of nanostructured and advanced electronic materials. Nanotechnology is an emerging scientific field receiving significant worldwide attention. On a nanometer scale, materials or structures may possess new and unique physical properties. Some of these are now known to the scientific community, but there may well be many properties not yet known to us, rendering it as a fascinating area of research and a suitable subject for a NATO ASI. Yet another aspect of the field is the possibility for creating meta-stable phases with unconventional properties and the ultra-miniaturization of current devices, sensors, and machines. Such nanotechnological and related advanced materials have an extremely wide range of potential applications, viz. nanoscale electronics, sensors, optoelectronics, photonics, nano-biological systems, na- medicine, energy storage systems, etc. This is a wide-ranging subject area and therefore requires the formation of multi-disciplinary teams of physicists, chemists, materials scientists, engineers, molecular biologists, pharmacologists, and others to work together on the synthesis and processing of materials and structures, the understanding of their physical properties, the design and fabrication of devices, etc. Hence, in formulating our ASI, we adopted an int- disciplinary approach, bringing together recognised experts in the various fields while retaining a level of treatment accessible to those active in specific individual areas of research and development.
