Download or read book The Elucidation of the Mechanism of the Initial Stages of Si 111 7x7 Oxidation Using Scanning Tunneling Microscopy written by Ph Avouris and published by . This book was released on 1992 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: The capability of the scanning tunneling microscopy (STM) and spectroscopy (STS) to probe the topography and electronic structure of surfaces and adsorbate layers with atomic resoLution makes it a powerful took in the study of surface chemistry. Here we use STM, STS, ultraviolet photoemission spectroscopy (LIPS) and electronic structure calculations to study the long-standing problem involving the nature of the initial stages of the oxidation of silicon. There have been a large number of studies on this issue utilizing a great variety of techniques. However, not only is the mechanism of oxidation still unclear, but there is not even agreement on what kind of product(s) is formed. Several different configurations have been proposed for the oxygen-containing sites in the early stages of the reaction. They involve oxygen atoms saturating the dangling-bonds of top-layer Si atoms, oxygen atoms inserted in back-bonds but leaving the dangling-bonds intact, or molecular forms of oxygen attached to surface atoms or bridging two surface Si atoms.
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1992 with total page 1736 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index written by and published by . This book was released on 1992 with total page 1400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study of Reaction Mechanisms on Single Crystal Surfaces with Scanning Tunneling Microscopy written by Sang Hoon Kim and published by . This book was released on 2003 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Growth and Surface Reconstructions of Metals on the Si 001 and Si 111 Surfaces Studied Using Scanning Tunneling Microscopy written by Xue-Feng Lin and published by . This book was released on 1993 with total page 0 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 1991 with total page 1586 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of the Si 111 Surface in Uhv written by and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We have studied the initial stages of oxidation, the segregation of phosphorus, and the effect of phosphorus on oxidation of the Si(111) 7 x 7 surface using optical second-harmonic generation. We have also observed a (.sqrt. 3 x .sqrt. 3)R30° LEED pattern for P on Si(111).
Download or read book A Theoretical Study of the Initial Stages of Oxidation of Si 111 written by Sebastian Harald Otto Felix Korbei and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrogen Exposure of Si 111 Surfaces and Reconstructions of SiC 0001 Surfaces Studied with Scanning Tunneling Microscopy written by Fredrik Owman and published by . This book was released on 1996 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Thermal Decomposition and Desorption Mechanism of Ultra thin Oxide on Silicon Studied by Scanning Tunneling Microscopy written by Kevin Everett Johnson and published by . This book was released on 1991 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of the Si 111 3x 3R30 Surface Reconstruction by Scanning Tunnelling Microscopy written by Daniel Cuthbert and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A scanning tunnelling microscopy (STM) study of the B induced phase transition between the (7x7) and √3x√3R30° reconstructions on a Si(111) surface is presented. STM images indicate that this phase transition takes upwards of two hours of thermal annealing at temperatures greater than 1100°C to induce a long range ordered √3x√3R30° surface. During the annealing procedure, many different atomic arrangements are observed to coexist on the surface including another dimer, adatom, stacking-fault (DAS) surface reconstruction similar to the (7x7), known as the (5x5). Large stable clusters of Si atoms were observed to exist on top of the disordered regions of the surface, which propagate the surface reconstructions along the step edges. The results obtained assist in our understanding of the formation of the Si(111)-√3 surface, which will aid in our ability to produce a clean, defect free surface for use in industrial applications.
Download or read book Modern Aspects of Electrochemistry 42 written by Constantinos G. Vayenas and published by Springer Science & Business Media. This book was released on 2008-03-08 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume analyzes and summarizes recent developments in several key interfacial electrochemical systems in the areas of fuel cell electrocatatalysis, electrosynthesis and electrodeposition. The six Chapters are written by internationally recognized experts in these areas and address both fundamental and practical aspects of several existing or emerging key electrochemical technologies. The Chapter by R. Adzic, N. Marinkovic and M. Vukmirovic provides a lucid and authoritative treatment of the electrochemistry and electrocatalysis of Ruthenium, a key element for the devel- ment of efficient electrodes for polymer electrolyte (PEM) fuel cells. Starting from fundamental surface science studies and interfacial considerations, this up-to-date review by some of the pioneers in this field, provides a deep insight in the complex catalytic-electrocatalytic phenomena occurring at the interfaces of PEM fuel cell electrodes and a comprehensive treatment of recent developments in this extremely important field. Several recent breakthroughs in the design of solid oxide fuel cell (SOFC) anodes and cathodes are described in the Chapter of H. Uchida and M. Watanabe. The authors, who have pioneered several of these developments, provide a lucid presentation d- cribing how careful fundamental investigations of interfacial electrocatalytic anode and cathode phenomena lead to novel electrode compositions and microstructures and to significant practical advances of SOFC anode and cathode stability and enhanced electrocatalysis.
Download or read book Visualizing Chemistry written by National Research Council and published by National Academies Press. This book was released on 2006-06-01 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientists and engineers have long relied on the power of imaging techniques to help see objects invisible to the naked eye, and thus, to advance scientific knowledge. These experts are constantly pushing the limits of technology in pursuit of chemical imagingâ€"the ability to visualize molecular structures and chemical composition in time and space as actual events unfoldâ€"from the smallest dimension of a biological system to the widest expanse of a distant galaxy. Chemical imaging has a variety of applications for almost every facet of our daily lives, ranging from medical diagnosis and treatment to the study and design of material properties in new products. In addition to highlighting advances in chemical imaging that could have the greatest impact on critical problems in science and technology, Visualizing Chemistry reviews the current state of chemical imaging technology, identifies promising future developments and their applications, and suggests a research and educational agenda to enable breakthrough improvements.
Download or read book Silicon written by Paul Siffert and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: With topics ranging from epitaxy through lattice defects and doping to quantum computation, this book provides a personalized survey of the development and use of silicon, the basis for the revolutionary changes in our lives sometimes called "The Silicon Age." Beginning with the very first developments more than 50 years ago, this reports on all aspects of silicon and silicon technology up to its use in exciting new technologies, including a glance at possible future developments.
Download or read book Computations for the Nano Scale written by P.E. Blöchl and published by Springer Science & Business Media. This book was released on 1993-06-30 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the NATO Advanced Research Workshop, Aspet, France, October 12-16, 1992
Download or read book Physics at Surfaces written by Andrew Zangwill and published by Cambridge University Press. This book was released on 1988-03-24 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Physics at Surfaces is a unique graduate-level introduction to the physics and chemical physics of solid surfaces, and atoms and molecules that interact with solid surfaces. A subject of keen scientific inquiry since the last century, surface physics emerged as an independent discipline only in the late 1960s as a result of the development of ultra-high vacuum technology and high speed digital computers. With these tools, reliable experimental measurements and theoretical calculations could at last be compared. Progress in the last decade has been truly striking. This volume provides a synthesis of the entire field of surface physics from the perspective of a modern condensed matter physicist with a healthy interest in chemical physics. The exposition intertwines experiment and theory whenever possible, although there is little detailed discussion of technique. This much-needed text will be invaluable to graduate students and researchers in condensed matter physics, physical chemistry and materials science working in, or taking graduate courses in, surface science.
Download or read book Semiconducting Silicides written by Victor E. Borisenko and published by Springer Science & Business Media. This book was released on 2013-03-07 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive presentation and analysis of properties and methods of formation of semiconducting silicides. Fundamental electronic, optical and transport properties of the silicides collected from recent publications will help readers choose their application in new generations of solid-state devices. A comprehensive presentation of thermodynamic and kinetic data is given in combination with their technical application, as is information on corresponding thin-film or bulk crystal formation techniques.
