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Hydrogen Halogen Chemistry On Semiconductor Surfaces
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Book Synopsis Hydrogen-Halogen Chemistry on Semiconductor Surfaces by :
Download or read book Hydrogen-Halogen Chemistry on Semiconductor Surfaces written by and published by . This book was released on 1992 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: The chemistry of coadsorbed H and X (X=Cl, Br) on semiconductor surfaces is important in epitaxial growth of silicon from chlorosilanes and of Si(x)Ge(1-x) alloys, in hydrogenating/halogenating cycles in atomic layer epitaxy, and also provides an interesting model system, yet has received little attention to date. We have investigated the interaction of H, HCl, and HBr with Ge(100) by temperature-programmed desorption, and find that H2, HCl, and HBr each absorb with near-first-order kinetics near 570-580 K, and the GECL2 and GeBr2 desorb with second-order kinetics near 680 K and 710 K, respectively. Trends in the chemistry and kinetics can be rationalized by viewing the dimer atoms on clean Ge(100)-(2x1) as being linked by a strained double bond and adsorption, decomposition, and desorption as being analogous to addition, rearrangement, and elimination reactions of molecular germanium compounds. The near-first-order desorption kinetics are attributed to pairing on surface dimers induced by the pi bond on unoccupied dimers. We infer a pairing enthalpy for H+H (=the pi bond strength of dimerized Ge(100) surface atoms) of 4-5 kcal/mol.
Book Synopsis Functionalization of Semiconductor Surfaces by : Franklin Tao
Download or read book Functionalization of Semiconductor Surfaces written by Franklin Tao and published by John Wiley & Sons. This book was released on 2012-03-16 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents both fundamental knowledge and latest achievements of this rapidly growing field in the last decade. It presents a complete and concise picture of the the state-of-the-art in the field, encompassing the most active international research groups in the world. Led by contributions from leading global research groups, the book discusses the functionalization of semiconductor surface. Dry organic reactions in vacuum and wet organic chemistry in solution are two major categories of strategies for functionalization that will be described. The growth of multilayer-molecular architectures on the formed organic monolayers will be documented. The immobilization of biomolecules such as DNA on organic layers chemically attached to semiconductor surfaces will be introduced. The patterning of complex structures of organic layers and metallic nanoclusters toward sensing techniques will be presented as well.
Book Synopsis Chemical Bonding at Surfaces and Interfaces by : Anders Nilsson
Download or read book Chemical Bonding at Surfaces and Interfaces written by Anders Nilsson and published by Elsevier. This book was released on 2011-08-11 with total page 533 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molecular surface science has made enormous progress in the past 30 years. The development can be characterized by a revolution in fundamental knowledge obtained from simple model systems and by an explosion in the number of experimental techniques. The last 10 years has seen an equally rapid development of quantum mechanical modeling of surface processes using Density Functional Theory (DFT). Chemical Bonding at Surfaces and Interfaces focuses on phenomena and concepts rather than on experimental or theoretical techniques. The aim is to provide the common basis for describing the interaction of atoms and molecules with surfaces and this to be used very broadly in science and technology. The book begins with an overview of structural information on surface adsorbates and discusses the structure of a number of important chemisorption systems. Chapter 2 describes in detail the chemical bond between atoms or molecules and a metal surface in the observed surface structures. A detailed description of experimental information on the dynamics of bond-formation and bond-breaking at surfaces make up Chapter 3. Followed by an in-depth analysis of aspects of heterogeneous catalysis based on the d-band model. In Chapter 5 adsorption and chemistry on the enormously important Si and Ge semiconductor surfaces are covered. In the remaining two Chapters the book moves on from solid-gas interfaces and looks at solid-liquid interface processes. In the final chapter an overview is given of the environmentally important chemical processes occurring on mineral and oxide surfaces in contact with water and electrolytes. - Gives examples of how modern theoretical DFT techniques can be used to design heterogeneous catalysts - This book suits the rapid introduction of methods and concepts from surface science into a broad range of scientific disciplines where the interaction between a solid and the surrounding gas or liquid phase is an essential component - Shows how insight into chemical bonding at surfaces can be applied to a range of scientific problems in heterogeneous catalysis, electrochemistry, environmental science and semiconductor processing - Provides both the fundamental perspective and an overview of chemical bonding in terms of structure, electronic structure and dynamics of bond rearrangements at surfaces
Book Synopsis Halogens on Semiconductor Surfaces by : Frank Stepniak
Download or read book Halogens on Semiconductor Surfaces written by Frank Stepniak and published by . This book was released on 1994 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Halogen Surface Chemistry on Si(100)-(2xl). by :
Download or read book Halogen Surface Chemistry on Si(100)-(2xl). written by and published by . This book was released on 1992 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The surface chemistry of adsorbed halogen atoms on Si(100) has been studied using several surface science methods. It has been found using electron-stimulated desorption ion angular distribution (ESDIAD) that Cl atoms bond to dangling bonds on symmetric Si2 dimer sites, and that the Si-Cl bond angle is tilted (25 deg +/-4 deg) from the normal in the vertical plane containing the symmetric Si2 dimer bond. The covalently-bonded halogens Cl, Br, and I have been studied on Si(100) using atomic hydrogen bombardment at low substrate temperatures (300 - 630 K). In all cases, facile elimination of the hydrogen halide occurs, and the coverage of halogen may be driven to zero by moderate exposure to atomic hydrogen. The halogen extraction process is almost non-activated, suggesting that the chemical reaction to produce hydrogen halide species is driven by the potential energy carried by the atomic hydrogen species. This is an example of an Eley-Rideal reaction process and provides a potentially useful new approach for controlling atomic layer chemistry on semiconductors.
Book Synopsis Halogen Reactions with III-V Semiconductor Surfaces by : Wei Wang
Download or read book Halogen Reactions with III-V Semiconductor Surfaces written by Wei Wang and published by . This book was released on 2000 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Halogen Chemistry by : Viktor Gutmann
Download or read book Halogen Chemistry written by Viktor Gutmann and published by Elsevier. This book was released on 2012-12-02 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: Halogen Chemistry, Volume 3 focuses on advancement in the study of halogens. Composed of contributions of authors, the book focuses on discussions on halides that contain multicentred metal-metal bonds. The discussions are initialized with an introduction; identification of factors that influence metal-metal bond formation; and compounds that contain multi-centred metal-metal bonds. The text also looks at the nature of metal-halogen bonds and the metal-halogen vibrational frequencies. Numerical representations and tabulations are presented as well. The book also looks at the halides of niobium and tantalum. Concerns include fluorine, chlorine, bromine, and iodine compounds. The compilation further considers pentahalides of transition metals and halide chemistry of chromium, molybdenum, and tungsten. The book closes with discussions on halogen chemistry of actinides and halogeno metal carbonyls and related compounds. Covered areas include trivalent, tetravalent, pentavalent, and hexavalent actinides, and structures and reactions of halogeno metal carbonyls. The compilation is a valuable source of information for readers interested in the study of halogens.
Book Synopsis Hydrogen in Semiconductors by : M. Stutzmann
Download or read book Hydrogen in Semiconductors written by M. Stutzmann and published by Elsevier. This book was released on 2012-12-02 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrogen on semiconductor surfaces has been an area of considerable activity over the last two decades. Structural, thermal, and dynamical properties of hydrogen chemisorbed on crystalline silicon and other semiconductors have been studied in great detail. These properties serve as a reference for related, but more complex systems such as hydrogen at multiple vacancies in crystalline semiconductors or at microvoids in amorphous samples. Interesting from a surface physics point of view is the fact that hydrogen as a monovalent element is an ideal terminator for unsaturated bonds on surfaces and therefore tends to have a large influence on surface reconstruction. A related phenomenon with large technological impact (for example in low cost solar cells) is the passivation of grain boundaries in microcrystalline semiconductors. Finally, hydrogenated semiconductor surfaces always appear as a boundary layer during low-energy hydrogenation of bulk semiconductors, so that a complete description of hydrogen uptake or desorption necessarily has to take these surfaces into account. This collection of invited and contributed papers has been carefully balanced to deal with amorphous and crystalline semiconductors and surfaces and presents basic and experimental work (basic and applied) as well as theory. The resulting volume presents a summary of the state-of-the-art in the field of hydrogen in semiconductors and will hopefully stimulate future work in this area.
Book Synopsis Hydrogen in Compound Semiconductors by : S.J. Pearton
Download or read book Hydrogen in Compound Semiconductors written by S.J. Pearton and published by Trans Tech Publications Ltd. This book was released on 1993-12-03 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: State-of-the-art reviews on all the major areas of interest are brought together in this book, namely the role of hydrogen during epitaxial growth, its entry into the material during processing, its subsequent diffusivity and bonding with dopants, other impurities or defects, its effect on device performance and reliability and positive uses for hydrogen in passivating surfaces.
Book Synopsis Semiconductor Surfaces and Interfaces by : Winfried Mönch
Download or read book Semiconductor Surfaces and Interfaces written by Winfried Mönch and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiconductor Surfaces and Interfaces deals with structural and electronic properties of semiconductor surfaces and interfaces. The first part introduces the general aspects of space-charge layers, of clean-surface and adatom-included surfaces states, and of interface states. It is followed by a presentation of experimental results on clean and adatom-covered surfaces which are explained in terms of simple physical and chemical concepts and models. Where available, results of more refined calculations are considered. A final chapter is devoted to the band lineup at semiconductor interfaces.
Book Synopsis Government reports annual index by :
Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 1726 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Encyclopedia of Interfacial Chemistry by :
Download or read book Encyclopedia of Interfacial Chemistry written by and published by Elsevier. This book was released on 2018-03-29 with total page 5276 pages. Available in PDF, EPUB and Kindle. Book excerpt: Encyclopedia of Interfacial Chemistry: Surface Science and Electrochemistry, Seven Volume Set summarizes current, fundamental knowledge of interfacial chemistry, bringing readers the latest developments in the field. As the chemical and physical properties and processes at solid and liquid interfaces are the scientific basis of so many technologies which enhance our lives and create new opportunities, its important to highlight how these technologies enable the design and optimization of functional materials for heterogeneous and electro-catalysts in food production, pollution control, energy conversion and storage, medical applications requiring biocompatibility, drug delivery, and more. This book provides an interdisciplinary view that lies at the intersection of these fields. Presents fundamental knowledge of interfacial chemistry, surface science and electrochemistry and provides cutting-edge research from academics and practitioners across various fields and global regions
Download or read book Surface Science Reports written by and published by . This book was released on 1981 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physics Briefs written by and published by . This book was released on 1993 with total page 888 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Semiconductor Cleaning Science and Technology 12 (SCST12) by : T. Hattori
Download or read book Semiconductor Cleaning Science and Technology 12 (SCST12) written by T. Hattori and published by The Electrochemical Society. This book was released on 2011 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Renewable Energy written by Bent Sorensen and published by Routledge. This book was released on 2018-12-14 with total page 2318 pages. Available in PDF, EPUB and Kindle. Book excerpt: This four-volume set, edited by a leading expert in the field, brings together in one collection a series of papers that have been fundamental to the development of renewable energy as a defined discipline. Some of the papers were first published many years ago, but they remain classics in their fields and retain their relevance to the understanding of current issues. The papers have been selected with the assistance of an eminent international editorial board. The set includes a general introduction and each volume is introduced by a new overview essay, placing the selected papers in context. The range of subject matter is considerable, including coverage of all the main renewable technologies, the fundamental principles by which they function, and the issues around their deployment such as planning, integration and socio-economic assessment. Overall, the set provides students, teachers and researchers, confronted with thousands of journal articles, book chapters and grey literature stretching back decades, with a ready-made selection of and commentary on the most important key writings in renewable energy. It will be an essential reference for libraries concerned with energy, technology and the environment.
