Atomic And Electronic Properties Of 2d Moir Interfaces

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Atomic And Electronic Properties Of 2d Moir Interfaces

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Author : Astrid Weston
language : en
Publisher:
Release Date : 2022

Atomic And Electronic Properties Of 2d Moir Interfaces written by Astrid Weston and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022 with categories.

Atomic And Electronic Properties Of 2d Moir Interfaces

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Author : Astrid Weston
language : en
Publisher: Springer Nature
Release Date : 2022-10-06

Atomic And Electronic Properties Of 2d Moir Interfaces written by Astrid Weston and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-10-06 with Technology & Engineering categories.

This thesis provides the first atomic length-scale observation of the structural transformation (referred to as lattice reconstruction) that occurs in moiré superlattices of twisted bilayer transition metal dichalcogenides (TMDs) at low (θ 2 ̊) twist angles. Such information is essential for the fundamental understanding of how manipulating the rotational twist-angle between two adjacent 2-dimensional crystals subsequently affects their optical and electrical properties./ppStudies using Scanning transmission electron microscopy (STEM), a powerful tool for atomic-scale imaging, were limited due to the complexity of the (atomically-thin) sample fabrication requirements. This work developed a unique way to selectively cut and re-stack monolayers of TMDs with a controlled rotational twist angle which could then be easily suspended on a TEM grid to meet the needs of the atomically thin sample requirements. The fabrication technique enabled the study of the two common stacking-polytypes including 3R and 2H (using MoS2 and WS2 as the example) as well as their structural evolution with decreasing twist-angle./ppAtomic-scale studies were followed by a comprehensive investigation of their electronic properties using scanning probe microscopy and electrical transport measurements of the artificially-engineered structures. The electronic structure of two common stacking-polytypes (3R and 2H) were strikingly different, as revealed by conductive atomic force microscopy. Further studies focused on the 3R-stacking polytype to reveal room-temperature out-of-plane ferroelectricity using tools such as kelvin probe force microscopy, scanning electron microscopy and electrical transport measurements. This work highlights that the unique intrinsic properties of TMDs (i.e. semiconductors with strongly light-matter interaction) combined with the additional twisted degree-of-freedom has great potential to create atomically thin transistors/LEDs with built-in memory storage functions and will further aid in the development of the next generation of optoelectronics.

Monatomic Two Dimensional Layers

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Author : Iwao Matsuda
language : en
Publisher: Elsevier
Release Date : 2018-08-22

Monatomic Two Dimensional Layers written by Iwao Matsuda and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-08-22 with Science categories.

Monatomic Two-Dimensional Layers: Properties, Fabrication and Industrial Applications provides a detailed examination on basic principles and state-of-the-art experimental techniques for monatomic layers on model surfaces, and in operating devices. Both conventional surface science and novel 2D materials science are included. The reader is guided through an introduction to the basic science of the field that is followed by advanced science specific to the system. Characterization techniques, the principles of state-of-the-art instruments for monatomic layers, and topics, including positron diffraction, time-resolved photoemission spectroscopy, surface transport measurements, and operando nanospectroscopy are also covered. Researchers, graduate students and professionals will find this volume invaluable to acquire a deeper knowledge of the basic science, preparation, and experimental characterization techniques for 2D materials. Industrial technicians and operators will find it a useful overview of surface science related methods for fabrication and characterization of 2D materials. Gives comprehensive access to the properties of 2D materials, selected fabrication methods, and advanced characterization tools Discusses structure analysis by diffraction methods and ‘operando’ spectroscopy to provide direct information on device performance for industrial applications Written by authors who developed the techniques and have conducted extensive research on monatomic layers

Field Effect In Semiconductor Electrolyte Interfaces

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Author : Pavel P. Konorov
language : en
Publisher: Princeton University Press
Release Date : 2006-10-03

Field Effect In Semiconductor Electrolyte Interfaces written by Pavel P. Konorov and has been published by Princeton University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-10-03 with Mathematics categories.

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Modeling Characterization And Production Of Nanomaterials

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Author : Vinod Tewary
language : en
Publisher: Woodhead Publishing
Release Date : 2022-11-09

Modeling Characterization And Production Of Nanomaterials written by Vinod Tewary and has been published by Woodhead Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-11-09 with Technology & Engineering categories.

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

Van Der Waals Heterostructures

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Author : Zheng Zhang
language : en
Publisher: John Wiley & Sons
Release Date : 2022-10-31

Van Der Waals Heterostructures written by Zheng Zhang and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-10-31 with Technology & Engineering categories.

Van der Waals Heterostructures A comprehensive resource systematically detailing the developments and applications of van der Waals heterostructures and devices Van der Waals Heterostructures is essential reading to understand the developments made in van der Waals heterostructures and devices in all aspects, from basic synthesis to physical analysis and heterostructures assembling to devices applications, including demonstrated applications of van der Waals heterostructure on electronics, optoelectronics, and energy conversion, such as solar energy, hydrogen energy, batteries, catalysts, biotechnology, and more. This book starts from an in-depth introduction of van der Waals interactions in layered materials and the forming of mixed-dimensional heterostructures via van der Waals force. It then comprehensively summarizes the synthetic methods, devices building processes and physical mechanism of 2D van der Waals heterostructures, and devices including 2D-2D electronics, 2D-2D optoelectronics, and mixed dimensional van der Waals heterostructures. In Van der Waals Heterostructures, readers can expect to find specific information on: The current library of 2D semiconductors and the current synthesis and performances of 2D semiconductors Controllable synthesis and assemble van der Waals heterostructures, physics of the van der Waals interface, and multi-field coupling effects 2D-2D electronics, 2D-2D optoelectronics, mixed dimensional van der Waals heterostructures, and van der Waals heterostructure applications on energy conversion Insight into future perspectives of the van der Waals heterostructures and devices with the detailed effective role of 2D materials for integrated electrical and electronic equipment

2d Materials

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Author :
language : en
Publisher: Academic Press
Release Date : 2016-06-24

2d Materials written by and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-06-24 with Science categories.

2D Materials contains the latest information on the current frontier of nanotechnology, the thinnest form of materials to ever occur in nature. A little over 10 years ago, this was a completely unknown area, not thought to exist. However, since then, graphene has been isolated and acclaimed, and a whole other class of atomically thin materials, dominated by surface effects and showing completely unexpected and extraordinary properties has been created. This book is ideal for a variety of readers, including those seeking a high-level overview or a very detailed and critical analysis. No nanotechnologist can currently overlook this new class of materials. Presents one of the first detailed books on this subject of nanotechnology Contains contributions from a great line-up of authoritative contributors that bring together theory and experiments Ideal for a variety of readers, including those seeking a high-level overview or a very detailed and critical analysis

Optoelectronic Properties Of Graphene Based Van Der Waals Hybrids

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Author : Kallol Roy
language : en
Publisher: Springer Nature
Release Date : 2020-10-21

Optoelectronic Properties Of Graphene Based Van Der Waals Hybrids written by Kallol Roy and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-10-21 with Technology & Engineering categories.

This thesis deals with the development and in-depth study of a new class of optoelectronic material platform comprising graphene and MoS_2, in which MoS_2 is used essentially to sensitize graphene and lead to unprecedently high gain and novel opto-electronic memory effects. The results presented here open up the possibility of designing a new class of photosensitive devices which can be utilized in various optoelectronic applications including biomedical sensing, astronomical sensing, optical communications, optical quantum information processing and in applications requiring low intensity photodetection and number resolved single photon detection.

Modeling Characterization And Production Of Nanomaterials

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Author : V Tewary
language : en
Publisher: Elsevier
Release Date : 2015-03-17

Modeling Characterization And Production Of Nanomaterials written by V Tewary and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-03-17 with Technology & Engineering categories.

Nano-scale materials have unique electronic, optical, and chemical properties which make them attractive for a new generation of devices. Part one of Modeling, Characterization, and Production of Nanomaterials: Electronics, Photonics and Energy Applications covers modeling techniques incorporating quantum mechanical effects to simulate nanomaterials and devices, such as multiscale modeling and density functional theory. Part two describes the characterization of nanomaterials using diffraction techniques and Raman spectroscopy. Part three looks at the structure and properties of nanomaterials, including their optical properties and atomic behaviour. Part four explores nanofabrication and nanodevices, including the growth of graphene, GaN-based nanorod heterostructures and colloidal quantum dots for applications in nanophotonics and metallic nanoparticles for catalysis applications. Comprehensive coverage of the close connection between modeling and experimental methods for studying a wide range of nanomaterials and nanostructures Focus on practical applications and industry needs, supported by a solid outlining of theoretical background Draws on the expertise of leading researchers in the field of nanomaterials from around the world

Molecular Beam Epitaxy

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Author : Mohamed Henini
language : en
Publisher: Elsevier
Release Date : 2018-06-27

Molecular Beam Epitaxy written by Mohamed Henini and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-27 with Science categories.

Molecular Beam Epitaxy (MBE): From Research to Mass Production, Second Edition, provides a comprehensive overview of the latest MBE research and applications in epitaxial growth, along with a detailed discussion and ‘how to’ on processing molecular or atomic beams that occur on the surface of a heated crystalline substrate in a vacuum. The techniques addressed in the book can be deployed wherever precise thin-film devices with enhanced and unique properties for computing, optics or photonics are required. It includes new semiconductor materials, new device structures that are commercially available, and many that are at the advanced research stage. This second edition covers the advances made by MBE, both in research and in the mass production of electronic and optoelectronic devices. Enhancements include new chapters on MBE growth of 2D materials, Si-Ge materials, AIN and GaN materials, and hybrid ferromagnet and semiconductor structures. Condenses the fundamental science of MBE into a modern reference, speeding up literature review Discusses new materials, novel applications and new device structures, grounding current commercial applications with modern understanding in industry and research Includes coverage of MBE as mass production epitaxial technology and how it enhances processing efficiency and throughput for the semiconductor industry and nanostructured semiconductor materials research community