SYNTHESIS, CHARACTERIZATION, AND APPLICATION OF 2D TRANSITION METAL DICHALCOGENIDES PDF Download
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Author:
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ISBN:
Category :
Languages : en
Pages :
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Book Description
Abstract : The rapid development of two-dimensional (2D) materials has led to tremendous interest in the study of graphene and a series of mono- and few-layered transition metal dichalcogenides (TMDCs). One major attraction of TMDCs is their semiconducting nature with indirect to direct bandgap transition, when thinned from bulk to few- and mono- layers. Molybdenum disulfide (MoS2) is one of the 2D TMDCs that has gained increasing attention due to its promising optical, electronic, and optoelectronic properties. In this thesis, I will discuss my research on the synthesis of 2D MoS2 and the characterization of its optical properties by Raman, Photoluminescence (PL) and UV-Vis spectroscopy. Next, the application of 2D TMDCs for FETs and solar cells will be reviewed. Finally, my extended work on the oxide form (transition metal oxides) and zero-dimensional (0D) form of TMDCs will be discussed. Efficient solar cells constructed by MoO3 and other oxides, and the future application of 0D TMDCs will also be evaluated.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Abstract : The rapid development of two-dimensional (2D) materials has led to tremendous interest in the study of graphene and a series of mono- and few-layered transition metal dichalcogenides (TMDCs). One major attraction of TMDCs is their semiconducting nature with indirect to direct bandgap transition, when thinned from bulk to few- and mono- layers. Molybdenum disulfide (MoS2) is one of the 2D TMDCs that has gained increasing attention due to its promising optical, electronic, and optoelectronic properties. In this thesis, I will discuss my research on the synthesis of 2D MoS2 and the characterization of its optical properties by Raman, Photoluminescence (PL) and UV-Vis spectroscopy. Next, the application of 2D TMDCs for FETs and solar cells will be reviewed. Finally, my extended work on the oxide form (transition metal oxides) and zero-dimensional (0D) form of TMDCs will be discussed. Efficient solar cells constructed by MoO3 and other oxides, and the future application of 0D TMDCs will also be evaluated.
Author: Narayanasamy Sabari Arul
Publisher: Springer
ISBN: 9811390452
Category : Technology & Engineering
Languages : en
Pages : 355
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Book Description
This book presents advanced synthesis techniques adopted to fabricate two-dimensional (2D) transition metal dichalcogenides (TMDs) materials with its enhanced properties towards their utilization in various applications such as, energy storage devices, photovoltaics, electrocatalysis, electronic devices, photocatalysts, sensing and biomedical applications. It provides detailed coverage on everything from the synthesis and properties to the applications and future prospects of research in 2D TMD nanomaterials.
Author: Pramoda Kumar Nayak
Publisher: BoD – Books on Demand
ISBN: 9535125540
Category : Technology & Engineering
Languages : en
Pages : 282
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Book Description
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.
Author: Pramoda Kumar Nayak
Publisher:
ISBN: 9789535141860
Category : Mining engineering. Metallurgy
Languages : en
Pages : 280
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Book Description
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.
Author: Jian Gao
Publisher:
ISBN:
Category :
Languages : en
Pages : 172
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Book Description
Author: Subhendu Chakroborty
Publisher: John Wiley & Sons
ISBN: 1394167865
Category : Technology & Engineering
Languages : en
Pages : 516
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Book Description
2D NANOMATERIALS The book provides a comprehensive overview of the synthesis, modification, characterization, and application of 2D nanomaterials. In recent years, 2D nanomaterials have emerged as a remarkable cornerstone in the field of advanced materials research, with their unique properties and versatile applications captivating the attention of scientists and engineers worldwide. This book is a testament to the ever-growing interest and importance of 2D nanomaterials in the realm of materials science, nanotechnology, pharmaceuticals, and a myriad of engineering specializations. The book is structured into three sections, each delving into different aspects of 2D nanomaterials. The first section explores the synthesis of these materials, providing an overview of both top-down and bottom-up strategies. Understanding the methods by which these materials can be synthesized is crucial for advancing their potential applications. Additionally, this section details the structural characterization of 2D nanomaterials, shedding light on their intricate compositions and properties. The second section examines the diverse characteristics exhibited by 2D nanomaterials. From their magnetic and mechanical properties to their electrical, plasmonic, and optical behaviors, these materials possess an array of intriguing attributes that make them highly attractive for a wide range of applications. This section of the book provides a comprehensive understanding of these properties, enabling readers to appreciate the unique potential of 2D nanomaterials. The final section focuses on the applications of 2D nanomaterials, highlighting their use in various fields such as energy, water purification, biomedical applications, multimodal tumor therapy, and supercapacitor technology.
Author: Zihan Yao
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: David Barroso
Publisher:
ISBN: 9780355754315
Category : Alloys
Languages : en
Pages : 79
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Book Description
Interest in two-dimensional (2D) electronic materials has exploded in the past decade, starting with the isolation of single layer graphene in 2004 by Novoselov. Similar to graphene, as a stable material in the single-layer, transition metal dichalcogenides (TMDs) further the advancement of 2D materials, but also provide an intrinsic transition to a direct bandgap in the single layer, thus giving these materials an advantage over graphene. Furthermore, TMDs have some of the highest notable Ion/Ioff ratios of other 2D materials, making them extremely favorable. However, none of these 2D materials can be used as a standalone for modern electronic applications, therefore, heterostructures of these materials must be created. An understanding of the way these materials are synthesized and ways to manipulate the synthesis is necessary to achieve such structures. Chemical vapor deposition (CVD) is a commonly used method to create single-layer TMDs among others such as mechanical exfoliation and metal sulfurization/selenization. Here I present facile methods by which to synthesize pristine, pure, 2D TMDs via CVD process manipulation. Additionally, in-situ operation of the CVD furnaces leads to the ability to alloy these materials and create heterostructures, leading to a study of tunable optical and physical properties. Last, I show the use of various/nanofabricated features on growth substrates in order to lead to a deeper understanding of the growth mechanisms for TMDs.
Author: Sayema Chowdhury
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Transition metal dichalcogenides (TMDs), possessing a multitude of interesting properties, have emerged as an interesting choice for various types of electronic, optoelectronic and beyond CMOS device applications. Chemical vapor deposition (CVD) has been used extensively as an efficient, fast, reliable, and scalable route to grow uniform, high quality, large area TMDs. In this work, we report atmospheric pressure CVD (APCVD) and metal-organic CVD (MOCVD) growth of TMDs and study the effects of growth temperature, metal/chalcogen flux, reaction environment, etc. in modulating the shape, size, crystal structure, and uniformity of the grown film. To control the morphology more efficiently, we established a process for transition from compact two-dimensional (2D) domain to branched domain morphologies by varying the growth temperature and transition metal flux. Two different types of branched domains, fractals and dendrites, are observed which follow different growth mechanisms. In addition to the experimental investigations, we used a phase field simulation method for a better understanding of the dependence of the domain morphologies on the growth parameters. To control the 2D/3D growth mode, crucial role of chalcogen flux is investigated. While multilayer islands form in a chalcogen-deficient condition, a chalcogen-rich condition promotes lateral growth by restricting transition metal-rich nuclei formation. Study of APCVD growth with different carrier gases show that a reducing environment under hydrogen gas is more favorable to achieve uniform 2D growth. Based on the experimental observations, we propose an optimized CVD growth condition to achieve large-area high quality 2D TMD domains. Beside the APCVD growth of TMDs, an alternative approach via MOCVD growth under low pressure followed by a high-temperature sulfurization process under atmospheric pressure has also been explored. This two-step process can substantially heal chalcogen vacancies, suppress carbon/oxygen contamination, and produce more homogeneously distributed triangular monolayer domains with the electrical performance comparable to APCVD-grown domains
Author: Chi Sin Tang
Publisher: John Wiley & Sons
ISBN: 3527838767
Category : Technology & Engineering
Languages : en
Pages : 357
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Book Description
Two-Dimensional Transition-Metal Dichalcogenides Comprehensive resource covering rapid scientific and technological development of polymorphic two-dimensional transition-metal dichalcogenides (2D-TMDs) over a range of disciplines and applications Two-Dimensional Transition-Metal Dichalcogenides: Phase Engineering and Applications in Electronics and Optoelectronics provides a discussion on the history of phase engineering in 2D-TMDs as well as an in-depth treatment on the structural and electronic properties of 2D-TMDs in their respective polymorphic structures. The text addresses different forms of in-situ synthesis, phase transformation, and characterization methods for 2D-TMD materials and provides a comprehensive treatment of both the theoretical and experimental studies that have been conducted on 2D-TMDs in their respective phases. Two-Dimensional Transition-Metal Dichalcogenides includes further information on: Thermoelectric, fundamental spin-orbit structures, Weyl semi-metallic, and superconductive and related ferromagnetic properties that 2D-TMD materials possess Existing and prospective applications of 2D-TMDs in the field of electronics and optoelectronics as well as clean energy, catalysis, and memristors Magnetism and spin structures of polymorphic 2D-TMDs and further considerations on the challenges confronting the utilization of TMD-based systems Recent progress of mechanical exfoliation and the application in the study of 2D materials and other modern opportunities for progress in the field Two-Dimensional Transition-Metal Dichalcogenides provides in-depth review introducing the electronic properties of two-dimensional transition-metal dichalcogenides with updates to the phase engineering transition strategies and a diverse range of arising applications, making it an essential resource for scientists, chemists, physicists, and engineers across a wide range of disciplines.
