Download or read book Ultrahigh Vacuum Metalorganic Chemical Vapor Deposition and in Situ Characterization of Nanoscale Titanium Dioxide Films written by Polly Wanda Chu and published by . This book was released on 1994 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thin titanium dioxide films were produced by metalorganic chemical vapor deposition on sapphire(0001) in an ultrahigh vacuum (UHV) chamber. A method was developed for producing controlled submonolayer depositions from titanium isopropoxide precursor. Film thickness ranged from 0.1 to 2.7 nm. In situ X-ray photoelectron spectroscopy (XPS) was used to determine film stoichiometry with increasing thickness. The effect of isothermal annealing on desorption was evaluated. Photoelectron peak shapes and positions from the initial monolayers were analyzed for evidence of interface reaction. Deposition from titanium isopropoxide is divided into two regimes: depositions below and above the pyrolysis temperature. This temperature was determined to be 300 deg C. Controlled submonolayers of titanium oxide were produced by cycles of dosing with titanium isopropoxide vapor below and annealing above 300 deg C. Precursor adsorption below the pyrolysis temperature was observed to saturate after 15 minutes of dosing. The quantity absorbed was shown to have an upper limit of one monolayer. The stoichiometry of thin films grown by the cycling method were determined to be TiO2. Titanium dioxide film stoichiometry was unaffected by isothermal annealing at 700 deg C. Annealing produced a decrease in film thickness. This was explained as due to desorption. Desorption ceased at approximately 2.5 to 3 monolayers, suggesting bonding of the initial monolayers of film to sapphire is stronger than to itself. Evidence of sapphire reduction at the interface by the depositions was not observed. The XPS O is peak shifted with increased film thickness. The shifts were consistent with oxygen in sapphire and titanium dioxide having different O is photoelectron peak positions. Simulations showed the total shifts for thin films ranging in thickness of 0.1 to 2.7 nm to be -0.99 to -1.23 eV. Thick films were produced for comparison.

Download or read book The Chemistry of Metal CVD written by Toivo T. Kodas and published by John Wiley & Sons. This book was released on 2008-09-26 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: High purity, thin metal coatings have a variety of important commercial applications, for example, in the microelectronics industry, as catalysts, as protective and decorative coatings as well as in gas-diffusion barriers. This book offers detailed, up- to-date coverage of the chemistry behind the vapor deposition of different metals from organometallic precursors. In nine chapters, the CVD of metals including aluminum, tungsten, gold, silver, platinum, palladium, nickel, as well as copper from copper(I) and copper(II) compounds is covered. The synthesis and properties of the precursors, the growth process, morphology, quality and adhesion of the resulting films as well as laser- assisted, ion- assisted and plasma-assisted methods are discussed. Present applications and prospects for future developments are summarized. With ca. 1000 references and a glossary, this book is a unique source of in-depth information. It is indispensable for chemists, physicists, engineers and materials scientists working with metal- coating processes and technologies. From Reviews: 'I highly recommend this book to anyone interested in learning more about the chemistry of metal CVD.' J. Am Chem. Soc.

Download or read book Metalorganic Vapor Phase Epitaxy MOVPE written by Stuart Irvine and published by John Wiley & Sons. This book was released on 2019-10-07 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: Systematically discusses the growth method, material properties, and applications for key semiconductor materials MOVPE is a chemical vapor deposition technique that produces single or polycrystalline thin films. As one of the key epitaxial growth technologies, it produces layers that form the basis of many optoelectronic components including mobile phone components (GaAs), semiconductor lasers and LEDs (III-Vs, nitrides), optical communications (oxides), infrared detectors, photovoltaics (II-IV materials), etc. Featuring contributions by an international group of academics and industrialists, this book looks at the fundamentals of MOVPE and the key areas of equipment/safety, precursor chemicals, and growth monitoring. It covers the most important materials from III-V and II-VI compounds to quantum dots and nanowires, including sulfides and selenides and oxides/ceramics. Sections in every chapter of Metalorganic Vapor Phase Epitaxy (MOVPE): Growth, Materials Properties and Applications cover the growth of the particular materials system, the properties of the resultant material, and its applications. The book offers information on arsenides, phosphides, and antimonides; nitrides; lattice-mismatched growth; CdTe, MCT (mercury cadmium telluride); ZnO and related materials; equipment and safety; and more. It also offers a chapter that looks at the future of the technique. Covers, in order, the growth method, material properties, and applications for each material Includes chapters on the fundamentals of MOVPE and the key areas of equipment/safety, precursor chemicals, and growth monitoring Looks at important materials such as III-V and II-VI compounds, quantum dots, and nanowires Provides topical and wide-ranging coverage from well-known authors in the field Part of the Materials for Electronic and Optoelectronic Applications series Metalorganic Vapor Phase Epitaxy (MOVPE): Growth, Materials Properties and Applications is an excellent book for graduate students, researchers in academia and industry, as well as specialist courses at undergraduate/postgraduate level in the area of epitaxial growth (MOVPE/ MOCVD/ MBE).

Download or read book Compound Semiconductors 1996 Proceedings of the Twenty Third INT Symposium on Compound Semiconductors held in St Petersburg Russia 23 27 September 1996 written by Shur and published by CRC Press. This book was released on 1997-01-01 with total page 1096 pages. Available in PDF, EPUB and Kindle. Book excerpt: Providing a comprehensive overview of developments to both the academic and industrial communities, Compound Semiconductors 1996 covers all types of compound semiconducting materials and devices. The book includes results on blue and green lasers, heterostructure devices, nanoelectronics, and novel wide band gap semiconductors. With invited review papers and research results in current topics of interest, this volume is part of a well-known series of conferences for the dissemination of research results in the field.

Download or read book Gallium Oxide written by Masataka Higashiwaki and published by Springer Nature. This book was released on 2020-04-23 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides comprehensive coverage of the new wide-bandgap semiconductor gallium oxide (Ga2O3). Ga2O3 has been attracting much attention due to its excellent materials properties. It features an extremely large bandgap of greater than 4.5 eV and availability of large-size, high-quality native substrates produced from melt-grown bulk single crystals. Ga2O3 is thus a rising star among ultra-wide-bandgap semiconductors and represents a key emerging research field for the worldwide semiconductor community. Expert chapters cover physical properties, synthesis, and state-of-the-art applications, including materials properties, growth techniques of melt-grown bulk single crystals and epitaxial thin films, and many types of devices. The book is an essential resource for academic and industry readers who have an interest in, or plan to start, a new R&D project related to Ga2O3.

Download or read book Surface Properties And Engineering Of Complex Intermetallics written by Esther Belin-ferre and published by World Scientific. This book was released on 2010-02-25 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the third in a series of 4 books issued yearly as a deliverable of the research school established within the European Network of Excellence CMA (for Complex Metallic Alloys). It is written by reputed experts in the fields of surface physics and chemistry, metallurgy and process engineering, combining expertise found inside as well as outside the network.The CMA network focuses on the huge group of largely unknown multinary alloys and compounds formed with crystal structures based on giant unit cells containing clusters, with many tens or up to more than thousand atoms per unit cell. In these phases, for many phenomena, the physical length scales are substantially smaller than the unit-cell dimension. Hence, these materials offer unique combinations of properties, which are mutually excluded in conventional materials: metallic electric conductivity combined with low thermal conductivity, combination of good light absorption with high-temperature stability, combination of high metallic hardness with reduced wetting by liquids, electrical and thermal resistance tuneable by composition variation, excellent resistance to corrosion, reduced cold-welding and adhesion, enhanced hydrogen storage capacity and light absorption, etc.The series of books will concentrate on: development of fundamental knowledge with the aim of understanding materials phenomena, technologies associated with the production, transformation and processing of knowledge-based multifunctional materials, surface engineering, support for new materials development and new knowledge-based higher performance materials for macro-scale applications.

Download or read book High k Gate Dielectrics written by Michel Houssa and published by CRC Press. This book was released on 2003-12-01 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: The drive toward smaller and smaller electronic componentry has huge implications for the materials currently being used. As quantum mechanical effects begin to dominate, conventional materials will be unable to function at scales much smaller than those in current use. For this reason, new materials with higher electrical permittivity will be requ

Download or read book Characterization of Metalorganic Chemical Vapor Deposition written by National Aeronautics and Space Administration (NASA) and published by . This book was released on 2018-08-16 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of experimental and numerical investigations to develop a more complete understanding of the reactive fluid dynamics of chemical vapor deposition were conducted. In the experimental phases of the effort, a horizontal CVD reactor configuration was used for the growth of InP at UVA and for laser velocimetry measurements of the flow fields in the reactor at LaRC. This horizontal reactor configuration was developed for the growth of III-V semiconductors and has been used by our research group in the past to study the deposition of both GaAs and InP. While the ultimate resolution of many of the heat and mass transport issues will require access to a reduced-gravity environment, the series of groundbased research makes direct contributions to this area while attempting to answer the design questions for future experiments of how low must gravity be reduced and for how long must this gravity level be maintained to make the necessary measurements. It is hoped that the terrestrial experiments will be useful for the design of future microgravity experiments which likely will be designed to employ a core set of measurements for applications in the microgravity environment such as HOLOC, the Fluid Physics/Dynamics Facility, or the Schlieren photography, the Laser Imaging Velocimetry and the Laser Doppler Velocimetry instruments under development for the Advanced Fluids Experiment Module. Jesser, W. A. Langley Research Center NGT-70404...

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Current Research in Thin Film Deposition written by Ross Birney and published by MDPI. This book was released on 2021-06-03 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today, thin films are near-ubiquitous and are utilised in a very wide range of industrially and scientifically important areas. These include familiar everyday instances such as anti-reflective coatings on ophthalmic lenses, smartphone optics, photovoltaics, decorative, and tool coatings. A range of somewhat more exotic applications also exists, such as astronomical instrumentation (e.g., ultra-low loss dielectric mirrors and beam splitters in gravitational wave detectors, such as laser interferometer gravitational-wave observatory (LIGO)), gas sensing, medical devices and implants, and accelerator coatings (e.g., coatings for the large hadron collider (LHC), and compact linear collider (CLIC) experiments at European organization for nuclear research (CERN)). This Special Issue will provide a platform for researchers working in any area within this highly diverse field to share and exchange their latest research findings. The Special Issue contains novel studies encompassing material characterisation techniques, a range of thin-film coating deposition processes and applications of such technology.

Download or read book Handbook of Thin Film Deposition written by Krishna Seshan and published by William Andrew. This book was released on 2018-02-23 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Thin Film Deposition, Fourth Edition, is a comprehensive reference focusing on thin film technologies and applications used in the semiconductor industry and the closely related areas of thin film deposition, thin film micro properties, photovoltaic solar energy applications, materials for memory applications and methods for thin film optical processes. The book is broken up into three sections: scaling, equipment and processing, and applications. In this newly revised edition, the handbook will also explore the limits of thin film applications, most notably as they relate to applications in manufacturing, materials, design and reliability. - Offers a practical survey of thin film technologies aimed at engineers and managers involved in all stages of the process: design, fabrication, quality assurance, applications and the limitations faced by those processes - Covers core processes and applications in the semiconductor industry and new developments within the photovoltaic and optical thin film industries - Features a new chapter discussing Gates Dielectrics

Download or read book Synthesis of Nanomaterials written by S. Noor Mohammad and published by Springer Nature. This book was released on 2020-10-27 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with the synthesis of nanomaterials with a strong focus on the underlying reaction kinetics and various synthesis mechanisms. It gives a detailed description of all major synthesis routes of many types of novel nanomaterials including nanowires, carbon nanotubes, semiconductor nanotubes, carbon nanobelts, nanofibers, nanorings, nanodots and quantum dots. In addition, it articulates the fundamental mechanisms of nanomaterials synthesis via vapor-phase, liquid-phase and solid-phase processes, highlighting the various strengths and weaknesses of each mechanism. This monograph provides the reader with a thorough review of the known state-of-the-art, along with a detailed comparison and analysis of all possible nanomaterials synthesis mechanisms. An important element of the book is how to obtain critical knowledge for controlling the morphology of nanomaterials and thereby fine tune their materials properties. The book is an ideal guide for graduate students and researchers new to the field seeking to establish or enhance their understanding of the physical and chemical fundamentals of nanomaterials synthesis mechanisms.

Download or read book Epitaxial Growth of Complex Metal Oxides written by Gertjan Koster and published by Woodhead Publishing. This book was released on 2022-04-22 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: Epitaxial Growth of Complex Metal Oxides, Second Edition reviews techniques and recent developments in the fabrication quality of complex metal oxides, which are facilitating advances in electronic, magnetic and optical applications. Sections review the key techniques involved in the epitaxial growth of complex metal oxides and explore the effects of strain and stoichiometry on crystal structure and related properties in thin film oxides. Finally, the book concludes by discussing selected examples of important applications of complex metal oxide thin films, including optoelectronics, batteries, spintronics and neuromorphic applications. This new edition has been fully updated, with brand new chapters on topics such as atomic layer deposition, interfaces, STEM-EELs, and the epitaxial growth of multiferroics, ferroelectrics and nanocomposites. - Examines the techniques used in epitaxial thin film growth for complex oxides, including atomic layer deposition, sputtering techniques, molecular beam epitaxy, and chemical solution deposition techniques - Reviews materials design strategies and materials property analysis methods, including the impacts of defects, strain, interfaces and stoichiometry - Describes key applications of epitaxially grown metal oxides, including optoelectronics, batteries, spintronics and neuromorphic applications

Download or read book Gallium arsenide Metalorganic Chemical Vapor Deposition with Alkyl Arsenic Sources written by Dietrich W. Vook and published by . This book was released on 1989 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Practical Handbook of Photovoltaics written by Augustin McEvoy and published by Academic Press. This book was released on 2012 with total page 1269 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook opens with an overview of solar radiation and how its energy can be tapped using photovoltaic cells. Other chapters cover the technology, manufacture and application of PV cells in real situations. The book ends by exploring the economic and business aspects of PV systems.

Download or read book Energy Research Abstracts written by and published by . This book was released on 1988 with total page 972 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Surface and Thin Film Analysis written by Gernot Friedbacher and published by John Wiley & Sons. This book was released on 2011-03-31 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surveying and comparing all techniques relevant for practical applications in surface and thin film analysis, this second edition of a bestseller is a vital guide to this hot topic in nano- and surface technology. This new book has been revised and updated and is divided into four parts - electron, ion, and photon detection, as well as scanning probe microscopy. New chapters have been added to cover such techniques as SNOM, FIM, atom probe (AP),and sum frequency generation (SFG). Appendices with a summary and comparison of techniques and a list of equipment suppliers make this book a rapid reference for materials scientists, analytical chemists, and those working in the biotechnological industry. From a Review of the First Edition (edited by Bubert and Jenett) "... a useful resource..." (Journal of the American Chemical Society)