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The Growth And Characterization Of Silicene Germanene And Hexagonal Boron Nitride
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Book Synopsis The Growth and Characterization of Silicene, Germanene and Hexagonal Boron Nitride by : Adil Acun
Download or read book The Growth and Characterization of Silicene, Germanene and Hexagonal Boron Nitride written by Adil Acun and published by . This book was released on 2017 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: The discovery of graphene inspired the exploration of other 2D-materials. Silicon and germanium are elements with similar features as carbon. This lead to the fabrication of graphene's cousins, silicene and germanene, with similar properties as graphene. Notable differences are found in the structural and electronic properties of silicene and germanene versus graphene. Following the same reasoning, hexagonal boron-nitride was proposed as a graphene-like material. Unlike other 2D-materials, hexagonal boron-nitride is an insulator that may act as a buffer layer of 2D-materials. Therefore, the properties and synthesis of these materials are addressed in this thesis.
Book Synopsis Chemical Vapor Deposition Growth and Characterization of Two-Dimensional Hexagonal Boron Nitride by : Roland Yingjie Tay
Download or read book Chemical Vapor Deposition Growth and Characterization of Two-Dimensional Hexagonal Boron Nitride written by Roland Yingjie Tay and published by Springer. This book was released on 2018-06-20 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis focuses on the growth of a new type of two-dimensional (2D) material known as hexagonal boron nitride (h-BN) using chemical vapor deposition (CVD). It also presents several significant breakthroughs in the authors’ understanding of the growth mechanism and development of new growth techniques, which are now well known in the field. Of particular importance is the pioneering work showing experimental proof that 2D crystals of h-BN can indeed be hexagonal in shape. This came as a major surprise to many working in the 2D field, as it had been generally assumed that hexagonal-shaped h-BN was impossible due to energy dynamics. Beyond growth, the thesis also reports on synthesis techniques that are geared toward commercial applications. Large-area aligned growth and up to an eightfold reduction in the cost of h-BN production are demonstrated. At present, all other 2D materials generally use h-BN as their dielectric layer and for encapsulation. As such, this thesis lays the cornerstone for using CVD 2D h-BN for this purpose.
Book Synopsis Hexagonal Boron Nitride by : Kalim Deshmukh
Download or read book Hexagonal Boron Nitride written by Kalim Deshmukh and published by Elsevier. This book was released on 2024-05-31 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hexagonal Boron Nitride: Synthesis, Properties, and Applications offers a comprehensive approach to hexagonal boron nitride (h-BN), covering synthesis, exfoliation, properties, characterization, functionalization, heterostructures, nanocomposites, and modelling and simulation, and guiding the reader towards advanced applications in biomedicine, electronics, energy storage, wastewater treatment, and other areas.The book begins by introducing hexagonal boron nitride, discussing classification, structure, synthesis methods, exfoliation, and functionalization techniques. This is followed by in-depth coverage of properties and characterization, as well as heterostructures and other two-dimensional materials, as well as nanocomposites. The fourth section of the book examines specific target applications, covering a range of cutting-edge areas including micro- and nano-electronics, anti-friction and anti-corrosive coatings, bone tissue engineering, wound healing, nanomedicine, drug delivery, catalysis, water treatment, energy storage and conversion, sensing and bio-sensing, and fire-retardant applications. Finally, computational modelling and simulation, and environmental aspects, are addressed in detail.This is a valuable resource for researchers and advanced students across nanotechnology, materials science, chemistry, environmental science, chemical engineering, biomedicine, electronics, and engineering. In an industrial setting, this book supports scientists, engineers, and R&D professionals with an interest in advanced 2D materials or nanomaterials for advanced applications. Presents the synthesis, properties, functionalization, and characterization methods for hexagonal boron nitride Explores novel applications across biomedicine, electronics, energy storage, and water treatment Addresses key challenges, such as biocompatibility, toxicity, and environmental and health impact
Download or read book Silicene written by Michelle Spencer and published by Springer. This book was released on 2016-02-19 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews the current state-of-the art of single layer silicene up to thicker silicon nanosheets, and their structure, properties and potential applications. Silicene is a newly discovered material that is one atomic layer think. It is a two-dimensional (2D) nanomaterial that is classified as a nanosheet, which has large lateral dimensions up to micrometres, but thicknesses of only nanometres or less. Silicon nanosheets are currently a very ‘hot’ area of research. The unique properties and morphology of such materials make them ideal for a variety of applications, including electronic devices, batteries and sensors. 2D nanosheets of silicon can be considered as analogues of graphene. As silicon is already the major component of electronic devices, the significance of nanosheets composed of silicon is that they can be more easily integrated into existing electronic devices. Furthermore, if 2D nanostructured Si can be implemented into such devices, then their size could be reduced into the nano-regime, providing unique properties different from bulk Si that is currently employed. The book is written for researchers and graduate students.
Book Synopsis Growth and Characterization of High-quality Bulk Hexagonal Boron Nitride Crystals by : Jiahan Li
Download or read book Growth and Characterization of High-quality Bulk Hexagonal Boron Nitride Crystals written by Jiahan Li and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: While hexagonal boron nitride (hBN) in polycrystalline form has met demand for its mechanical, chemical, and thermal applications, its new electronic, optoelectronic, and nanophotonic applications required single crystals with low residual impurity concentrations. Grain boundaries and impurities need to be minimized, as they degrade the properties of hBN that are important for these new applications. The present study was undertaken to develop large area, high quality hBN single crystals at low cost, and with control over its boron isotope concentrations. Furthermore, a preliminary study was undertaken to determine if the properties of hBN could be advantageously altered by irradiation. In this study, four processes to grow and manipulate the properties of hBN single crystals were developed. First, high-quality hBN crystals were grown from an iron metal flux. The quality of crystals produced by this novel, low cost and high purity solvent was equivalent to the best reported in the literature, as verified by Raman spectroscopy, photoluminescence, defect density assessment, and current-voltage measurements. Second, hBN crystals were grown via temperature gradient method with iron-chromium flux. This method has the potential to produce larger, higher quality crystals than the slow cooling method. The maximum crystal domain size was up to 4 mm. Both in- and out-plane thermal conductivity was significantly higher than the hBN grown by slow cooling, indicating improved crystallinity. Third, monoisotopic boron hBN (h10BN and h11BN) was grown from both Fe and Fe-Cr fluxes. Raman and photoluminescence spectra show the quality of crystal grown from Fe and Fe-Cr fluxes was comparable. Fourth, neutron transmutation doping was studied as a possible method of altering the electrical and optical properties of hBN single crystals. Raman spectroscopy, photoluminescence, and electron paramagnetic resonance spectroscopies established that the effects of neutron irradiation were more pronounced on h10BN than h11BN. Together, these studies demonstrate the versatility of methods available to produce high quality hBN single crystal with specific properties.
Book Synopsis Synthesis and Characterization of Bulk Single Crystal Hexagonal Boron Nitride from Metal Solvents by : Benjamin Clubine
Download or read book Synthesis and Characterization of Bulk Single Crystal Hexagonal Boron Nitride from Metal Solvents written by Benjamin Clubine and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Boron nitride is a purely synthetic material that has been known for over 150 years but only recently has sparked interest as a semiconductor material due to its potential in ultraviolet lasing and neutron detection. Thin-layer hexagonal boron nitride (hBN) is probably most attractive as a complementary material to graphene during its intense research endeavors. But for hBN to be successful in the realm of semiconductor technology, methods for growing large single crystals are critical, and its properties need to be accurately determined. In this study, hBN crystals were grown from metal solvents. The effects of soak temperature, soak time, source materials and their proportions on hBN crystal size and properties were investigated. The largest crystals of hBN measured five millimeters across and about 30 micrometers thick by precipitation from BN powder dissolved in a nickel-chromium solvent at 1700°C. High temperatures promoted outward growth of the crystal along the a-axis, whereas low temperatures promoted growth along the c-axis. Crystal growth at high temperatures also caused bulk hBN to adopt a triangular habit rather than a hexagonal one. A previously unreported method of synthesizing hBN was proven successful by substituting BN powder with elemental boron and a nitrogen ambient. XRD and Raman spectroscopy confirmed hBN from solution growth to be highly crystalline, with an 8.0 cm[superscript]-1 FWHM of the Raman peak being the narrowest reported. Photoluminescence spectra exhibited peaks mid-gap and near the band edge, suggesting impurities and defects in the hBN samples. However, high-purity reactants and post-growth annealing showed promise for synthesizing semiconductor-grade hBN. Several etchants were explored for defect-selective etching of hBN. A molten eutectic mixture of KOH/NaOH was the most effective defect-selective etchant of hBN at temperatures of 430-450°C for about one minute. The two prevalent hexagonal etch pit morphologies observed were deep, pointed-bottom pits and shallow, flat-bottom pits. TEM and SAED confirmed basal plane twists and dislocations in hBN crystals, but due to the highly anisotropic nature of hBN, their existence may be inevitable no matter the growth technique.
Book Synopsis Advanced Computational Nanomechanics by : Nuno Silvestre
Download or read book Advanced Computational Nanomechanics written by Nuno Silvestre and published by John Wiley & Sons. This book was released on 2015-12-24 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains the latest research advances in computational nanomechanics in one comprehensive volume Covers computational tools used to simulate and analyse nanostructures Includes contributions from leading researchers Covers of new methodologies/tools applied to computational nanomechanics whilst also giving readers the new findings on carbon-based aggregates (graphene, carbon-nanotubes, nanocomposites) Evaluates the impact of nanoscale phenomena in materials
Book Synopsis Synthesis and Characterization of Hexagonal Boron Nitride for Integration with Graphene Electronics by : Michael S. Bresnehan
Download or read book Synthesis and Characterization of Hexagonal Boron Nitride for Integration with Graphene Electronics written by Michael S. Bresnehan and published by . This book was released on 2013 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Boron Nitride Nanomaterials by : Ben McLean
Download or read book Boron Nitride Nanomaterials written by Ben McLean and published by CRC Press. This book was released on 2022-12-23 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Boron nitride was first produced in the 18th century and, by virtue of its extraordinary mechanical strength, has found extensive application in industrial processes since the 1940s. However, the more recent discovery that boron nitride allotropes are as structurally diverse as those of carbon (e.g. fullerenes, graphene, carbon nanotubes) has placed this material, and particularly its low-dimensional allotropes, back at the forefront of modern material science. This book provides a comprehensive history of this rapid rise in the status of boron nitride and boron nitride nanomaterials, spanning the earliest examples of three-dimensional boron nitride allotropes, through to contemporary structures such as monolayer hexagonal boron nitride, boron nitride nanomeshes, boron nitride nanotubes and the incorporation of boron nitride into cutting-edge van der Waals heterostructures. It specifically focuses on the properties, applications and synthesis techniques for each of these allotropes and examines how the evolution in boron nitride production methods is linked to that in our understanding of how low-dimensional nanomaterials self-assemble, or ‘grow’, during synthesis. The book demonstrates the key synergy between growth mechanisms and the development of new, advanced nanostructured materials.
Book Synopsis Nanoscale Electronic Devices and Their Applications by : Khurshed Ahmad Shah
Download or read book Nanoscale Electronic Devices and Their Applications written by Khurshed Ahmad Shah and published by CRC Press. This book was released on 2020-08-03 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanoscale Electronic Devices and Their Applications helps readers acquire a thorough understanding of the fundamentals of solids at the nanoscale level in addition to their applications including operation and properties of recent nanoscale devices. This book includes seven chapters that give an overview of electrons in solids, carbon nanotube devices and their applications, doping techniques, construction and operational details of channel-engineered MOSFETs, and spintronic devices and their applications. Structural and operational features of phase-change memory (PCM), memristor, and resistive random-access memory (ReRAM) are also discussed. In addition, some applications of these phase-change devices to logic designs have been presented. Aimed at senior undergraduate students in electrical engineering, micro-electronics engineering, physics, and device physics, this book: Covers a wide area of nanoscale devices while explaining the fundamental physics in these devices Reviews information on CNT two- and three-probe devices, spintronic devices, CNT interconnects, CNT memories, and NDR in CNT FETs Discusses spin-controlled devices and their applications, multi-material devices, and gates in addition to phase-change devices Includes rigorous mathematical derivations of the semiconductor physics Illustrates major concepts thorough discussions and various diagrams
Book Synopsis Modeling, Characterization, and Production of Nanomaterials by : Vinod Tewary
Download or read book Modeling, Characterization, and Production of Nanomaterials written by Vinod Tewary and published by Woodhead Publishing. This book was released on 2022-11-09 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nano-scale materials have unique electronic, optical, and chemical properties that make them attractive for a new generation of devices. In the second edition of Modeling, Characterization, and Production of Nanomaterials: Electronics, Photonics, and Energy Applications, leading experts review the latest advances in research in the understanding, prediction, and methods of production of current and emerging nanomaterials for key applications. The chapters in the first half of the book cover applications of different modeling techniques, such as Green’s function-based multiscale modeling and density functional theory, to simulate nanomaterials and their structures, properties, and devices. The chapters in the second half describe the characterization of nanomaterials using advanced material characterization techniques, such as high-resolution electron microscopy, near-field scanning microwave microscopy, confocal micro-Raman spectroscopy, thermal analysis of nanoparticles, and applications of nanomaterials in areas such as electronics, solar energy, catalysis, and sensing. The second edition includes emerging relevant nanomaterials, applications, and updated modeling and characterization techniques and new understanding of nanomaterials. Covers the close connection between modeling and experimental methods for studying a wide range of nanomaterials and nanostructures Focuses on practical applications and industry needs through a solid outlining of the theoretical background Includes emerging nanomaterials and their applications in spintronics and sensing
Book Synopsis Synthesis and Properties of Boron Nitride by : J.J. Pouch
Download or read book Synthesis and Properties of Boron Nitride written by J.J. Pouch and published by Trans Tech Publications Ltd. This book was released on 1991-01-01 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Boron nitride thin films can be deposited on different substrates using techniques such as plasma deposition, ion beam deposition and reactive sputter deposition.
Book Synopsis Fabrication and Physical Properties of Novel Two-dimensional Crystal Materials Beyond Graphene: Germanene, Hafnene and PtSe2 by : Linfei Li
Download or read book Fabrication and Physical Properties of Novel Two-dimensional Crystal Materials Beyond Graphene: Germanene, Hafnene and PtSe2 written by Linfei Li and published by Springer Nature. This book was released on 2020-01-03 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis reports on essential experimental work in the field of novel two-dimensional (2D) atomic crystals beyond graphene. It especially describes three new 2D crystal materials, namely germanene, hafnene, and monolayer PtSe2 fabricated experimentally for the first time, using an ultra-high vacuum molecular beam epitaxy (UHV-MBE) system. Multiple characterization techniques, including scanning tunneling microscope (STM), low energy electron diffraction (LEED), scanning transmission electron microscope (STEM), and angle-resolved photoemission spectroscopy (ARPES), combined with theoretical studies reveal the materials’ atomic and electronic structures, which allows the author to further investigate their physical properties and potential applications. In addition, a new epitaxial growth method for transition metal dichalcogenides involving direct selenization of metal supports is developed. These studies represent a significant step forward in expanding the family of 2D crystal materials and exploring their application potentials in future nanotechnology and related areas.
Book Synopsis Advanced 2D Materials by : Ashutosh Tiwari
Download or read book Advanced 2D Materials written by Ashutosh Tiwari and published by John Wiley & Sons. This book was released on 2016-06-22 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together innovative methodologies and strategies adopted in the research and developments of Advanced 2D Materials. Well-known worldwide researchers deliberate subjects on (1) Synthesis, characterizations, modeling and properties, (2) State-of-the-art design and (3) innovative uses of 2D materials including: Two-dimensional layered gallium selenide Synthesis of 2D boron nitride nanosheets The effects of substrates on 2-D crystals Electrical conductivity and reflectivity of models of some 2D materials Graphene derivatives in semicrystalline polymer composites Graphene oxide based multifunctional composites Covalent and non-covalent polymer grafting of graphene oxide Graphene-semiconductor hybrid photocatalysts for solar fuels Graphene based sensors Graphene composites from bench to clinic Photocatalytic ZnO-graphene hybrids Hydroxyapatite-graphene bioceramics in orthopaedic applications
Book Synopsis Growth and Etching of Hexagonal Boron Nitride-control of Nucleation and Crystal Morphology by : Yanxin Ji
Download or read book Growth and Etching of Hexagonal Boron Nitride-control of Nucleation and Crystal Morphology written by Yanxin Ji and published by . This book was released on 2016 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hexagonal boron nitride (h-BN) is a layered material and it is similar to graphene in lattice structure. Sheets of h-BN are composed of alternating boron and nitrogen atoms in a honeycomb arrangement. The strong bond between boron and nitrogen leads to the formation of a wide bandgap (5.9eV) material. The layers are held together by weak van der Waals forces as other layered materials. Since their superb chemical stability and intrinsic insulation, h-BN can be used as a thin top dielectric layer to gate graphene and as an inert substrate for graphene transistors. So the strategy to grow high quality h-BN on a large scale is very important. My research focuses on the controllable growth of h-BN on copper substrates using the low-pressure chemical vapor deposition (LPCVD) method. In order to optimize the growth condition, I investigated how the precursor, geometric environment, substrate engineering and gas mixture affect the quality of the as-grown h-BN. Electropolishing of the Cu substrate was used to reduce the nucleation density of h-BN and hence the domain sizes increase. The evolution of varied h-BN domain shapes was explained by the underlying growth mechanism. Raman, SEM, XPS, and LEEM I-V Curve were performed on the samples for characterization. In the last part, I will show the electric properties of the device made by the as-grown h-BN.
Book Synopsis Handbook of Measurement in Science and Engineering, Volume 3 by : Myer Kutz
Download or read book Handbook of Measurement in Science and Engineering, Volume 3 written by Myer Kutz and published by John Wiley & Sons. This book was released on 2016-04-25 with total page 832 pages. Available in PDF, EPUB and Kindle. Book excerpt: A multidisciplinary reference of engineering measurement tools, techniques, and applications "When you can measure what you are speaking about, and express it in numbers, you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meager and unsatisfactory kind; it may be the beginning of knowledge, but you have scarcely in your thoughts advanced to the stage of science." — Lord Kelvin Measurement is at the heart of any engineering and scientific discipline and job function. Whether engineers and scientists are attempting to state requirements quantitatively and demonstrate compliance; to track progress and predict results; or to analyze costs and benefits, they must use the right tools and techniques to produce meaningful data. The Handbook of Measurement in Science and Engineering is the most comprehensive, up-to-date reference set on engineering and scientific measurements—beyond anything on the market today. Encyclopedic in scope, Volume 3 covers measurements in physics, electrical engineering and chemistry: Laser Measurement Techniques Magnetic Force Images using Capacitive Coupling Effect Scanning Tunneling Microscopy Measurement of Light and Color The Detection and Measurement of Ionizing Radiation Measuring Time and Comparing Clocks Laboratory-Based Gravity Measurement Cryogenic Measurements Temperature-Dependent Fluorescence Measurements Voltage and Current Transducers for Power Systems Electric Power and Energy Measurement Chemometrics for the Engineering and Measurement Sciences Liquid Chromatography Mass Spectroscopy Measurements of Nitrotyrosine-Containing Proteins Fluorescence Spectroscopy X-Ray Absorption Spectroscopy Nuclear Magnetic Resonance (NMR) Spectroscopy Near Infrared (NIR) Spectroscopy Nanomaterials Properties Chemical Sensing Vital for engineers, scientists, and technical managers in industry and government, Handbook of Measurement in Science and Engineering will also prove ideal for academics and researchers at universities and laboratories.
Book Synopsis Handbook of Graphene, Volume 3 by : Mei Zhang
Download or read book Handbook of Graphene, Volume 3 written by Mei Zhang and published by John Wiley & Sons. This book was released on 2019-06-11 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: The third volume in a series of handbooks on graphene research and applications Graphene is a valuable nanomaterial used in technology. This handbook is focused on Graphene-Like 2D Materials. The Handbook of Graphene, Volume 3 covers topics that include planar graphene superlattices; magnetic and optical properties of graphene materials with porous defects; and nanoelectronic application of graphyne and its structural derivatives.
