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Fabrication and Physical Properties of Novel Two-dimensional Crystal Materials Beyond Graphene

2020 Nanostructured materials
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Release : 2020
Genre : Nanostructured materials
Kind : eBook
Book Rating : 642/5 ( reviews)

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Book Synopsis Fabrication and Physical Properties of Novel Two-dimensional Crystal Materials Beyond Graphene by : Linfei Li

Download or read book Fabrication and Physical Properties of Novel Two-dimensional Crystal Materials Beyond Graphene written by Linfei Li. This book was released on 2020. 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.

Fabrication and Physical Properties of Novel Two-dimensional Crystal Materials Beyond Graphene: Germanene, Hafnene and PtSe2

2020-01-03 Science
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Release : 2020-01-03
Genre : Science
Kind : eBook
Book Rating : 633/5 ( reviews)

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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. This book was released on 2020-01-03. 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.

Defects in Two-Dimensional Materials

2022-02-14 Technology & Engineering
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Release : 2022-02-14
Genre : Technology & Engineering
Kind : eBook
Book Rating : 10X/5 ( reviews)

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Book Synopsis Defects in Two-Dimensional Materials by : Rafik Addou

Download or read book Defects in Two-Dimensional Materials written by Rafik Addou. This book was released on 2022-02-14. Available in PDF, EPUB and Kindle. Book excerpt: Defects in Two-Dimensional Materials addresses the fundamental physics and chemistry of defects in 2D materials and their effects on physical, electrical and optical properties. The book explores 2D materials such as graphene, hexagonal boron nitride (h-BN) and transition metal dichalcogenides (TMD). This knowledge will enable scientists and engineers to tune 2D materials properties to meet specific application requirements. The book reviews the techniques to characterize 2D material defects and compares the defects present in the various 2D materials (e.g. graphene, h-BN, TMDs, phosphorene, silicene, etc.). As two-dimensional materials research and development is a fast-growing field that could lead to many industrial applications, the primary objective of this book is to review, discuss and present opportunities in controlling defects in these materials to improve device performance in general or use the defects in a controlled way for novel applications. Presents the theory, physics and chemistry of 2D materials Catalogues defects of 2D materials and their impacts on materials properties and performance Reviews methods to characterize, control and engineer defects in 2D materials

Two-dimensional Materials

2016-08-31 Technology & Engineering
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Release : 2016-08-31
Genre : Technology & Engineering
Kind : eBook
Book Rating : 540/5 ( reviews)

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Book Synopsis Two-dimensional Materials by : Pramoda Kumar Nayak

Download or read book Two-dimensional Materials written by Pramoda Kumar Nayak. This book was released on 2016-08-31. Available in PDF, EPUB and Kindle. Book excerpt: There are only a few discoveries and new technologies in materials science that have the potential to dramatically alter and revolutionize our material world. Discovery of two-dimensional (2D) materials, the thinnest form of materials to ever occur in nature, is one of them. After isolation of graphene from graphite in 2004, a whole other class of atomically thin materials, dominated by surface effects and showing completely unexpected and extraordinary properties, has been created. This book provides a comprehensive view and state-of-the-art knowledge about 2D materials such as graphene, hexagonal boron nitride (h-BN), transition metal dichalcogenides (TMD) and so on. It consists of 11 chapters contributed by a team of experts in this exciting field and provides latest synthesis techniques of 2D materials, characterization and their potential applications in energy conservation, electronics, optoelectronics and biotechnology.

Two-dimensional Materials Beyond Graphene

2016
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Release : 2016
Genre :
Kind : eBook
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Book Synopsis Two-dimensional Materials Beyond Graphene by : Amin Azizi

Download or read book Two-dimensional Materials Beyond Graphene written by Amin Azizi. This book was released on 2016. Available in PDF, EPUB and Kindle. Book excerpt: Two-dimensional (2D) crystals are atomically thin materials that enable fabrication of flexible and unconventional devices. They offer a wide range of physical and chemical properties that can be engineered for practical applications, such as ultrafast transistors, efficient catalysts and solar cells, flexible and transparent displays, and LEDs. Advances in designing new structures from 2D crystals promise to extend this field even further. This thesis will present tunable synthesis of 2D crystals, atomic-scale characterization of 2D structures and their defects, in addition to their applications in energy storage devices. Large-area 2D hexagonal boron nitride (h-BN) crystals with tunable morphology and thickness are synthesized using a controlled low-pressure chemical vapor deposition (LPCVD). State-of-the-art aberration-corrected electron microscopy with sub-angstrom resolution is used to probe atomic structure, chemistry and optical properties of 2D structures. Different approaches, by which the already remarkable properties of 2D crystals can be further tuned, based on understanding defect structures and dynamics in 2D crystals, creating vertical heterostructures by stacking individual 2D crystals one atop the other, and doping/alloying of 2D crystals, will be discussed. Additionally, this thesis will present a potential application of the CVD-synthesized h-BN films in capacitive energy storage devices. A simple and versatile approach for coating polymer dielectrics with large-area CVD-grown h-BN films will be demonstrated, through which their capacitive energy storage performance at high temperatures is significantly improved in comparison to pristine polymer materials.

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