Download or read book Effect of Irradiation Parameters on the Surface Pattern Evolution in Silicon Due to Ion Bombardment written by Kallol Das and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radiation Effects in Silicon Carbide written by A.A. Lebedev and published by Materials Research Forum LLC. This book was released on 2017 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book reviews the most interesting research concerning the radiation defects formed in 6H-, 4H-, and 3C-SiC under irradiation with electrons, neutrons, and some kinds of ions. The electrical parameters that make SiC a promising material for applications in modern electronics are discussed in detail. Specific features of the crystal structure of SiC are considered. It is shown that, when wide-bandgap semiconductors are studied, it is necessary to take into account the temperature dependence of the carrier removal rate, which is a standard parameter for determining the radiation hardness of semiconductors. The carrier removal rate values obtained by irradiation of various SiC polytypes with n- and p-type conductivity are analyzed in relation to the type and energy of the irradiating particles. The influence exerted by the energy of charged particles on how radiation defects are formed and conductivity is compensated in semiconductors under irradiation is analyzed. Furthermore, the possibility to produce controlled transformation of silicon carbide polytype is considered. The involvement of radiation defects in radiative and nonradiative recombination processes in SiC is analyzed. Data are also presented regarding the degradation of particular SiC electronic devices under the influence of radiation and a conclusion is made regarding the radiation resistance of SiC. Lastly, the radiation hardness of devices based on silicon and silicon carbide are compared.
Download or read book Structure Stress and Surface Evolution in Silicon Due to Ion Bombardment written by Nagarajan Kalyanasundaram and published by ProQuest. This book was released on 2007 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the first part of the work, a molecular dynamics simulation methodology using empirical interatomic potentials is developed to study argon ion bombardment of silicon. Sputtering, structure and stress evolution are studied at 500eV and 700eV beam energies. The ion beam energies considered in this work are similar to those used in both nanometer-scale surface patterning experiments and a particular microelectromechanical systems (MEMS) fabrication technique.
Download or read book Surface Morphology Evolution During Low Energy Ion Bombardment of Silicon and Gallium Antimonide written by Gözde Özaydin-İnce and published by . This book was released on 2008 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Ion bombardment is a widely used technique to modify the properties of materials for technological applications. In recent years, surface evolution during ion bombardment has also attracted considerable fundamental interest because of the desire to better understand the physical processes occurring at the surface and the frequent instability of surfaces to the spontaneous formation of nanostructures during bombardment. In this research, the surface morphology evolution of Silicon(100) and Gallium Antimonide(100) during low energy Argon ion bombardment was studied using real-time grazing-incidence small angle X-ray scattering and ex-situ atomic force microscopy. The surface morphology evolution of Si during ion bombardment as a function of substrate temperature was examined. Although, the surface was amorphized during bombardment at room temperature, above approximately 400°C a transition from amorphous to crystalline structure occurred. Above 500°C, the surface remained crystalline and the growing corrugations exhibited dynamic scaling with power law growth in amplitude and characteristic length scale. The ripple formation by off normal incidence low energy ion bombardment and ripple smoothening by normal incidence ion bombardment at room temperature were studied. Using real-time X-ray scattering, an exponential growth of the intensities during ripple formation was observed confirming that the early time kinetics obeyed the Bradley-Harper model. However, at later times the growth slowed and deviated from the predictions of the linear model. Ripple smoothening experiments, on the other hand, showed that the ripple structures eroded during normal incidence ion bombardment, possibly due to an additional lateral atomic smoothening mechanism active at these incidence angles. The real-time measurements showed that the small length scales decayed faster than the large length scales as predicted by the linear model, however the decay mechanisms were more complex than expected from existing linear theory. It was observed that, although Si surfaces remained smooth during bombardment at room temperature when a small amount of Molybdenum atoms was supplied to the surface during ion bombardment, correlated structures with two different characteristic length scales developed. The shorter length scale features ("dots") coarsened with time until they reached a constant spatial wavelength. The longer length scale corrugations associated with kinetic roughening, however, continued to grow in amplitude during bombardment. The evolution of this kinetic roughening could be described by the Family-Vicsek scaling hypothesis. A new noise term associated with inhomogeneities in local relaxation was proposed to quantitatively explain the early time kinetics. In addition, in-situ wafer curvature measurements were performed during ion bombardment to study the real-time stress state of the surface. The measurements showed that initially a compressive stress developed during bombardment, likely due to amorphization of the surface. However, seeding caused a larger tensile stress to develop with further bombardment, possibly due to the formation of higher density regions around the Mo seed atoms on the surface. The effects of this large tensile stress on the surface instability and the formation of the nanodots were also examined. Simulations of existing continuum equations of surface morphology evolution during normal incidence ion bombardment at room temperature were performed to study the effects of individual terms on the surface morphology, as well as their relations with each other. It was observed that the noisy Kuramoto-Sivashinsky model could only qualitatively predict the surface evolution, but could not reproduce all of the experimental results. Finally, the morphology evolution of GaSb(100) surfaces during ion bombardment at different energies was also studied. Formation of correlated nanodots with a length scale of approximately 30 nm was observed during bombardment at room temperature without seeding.
Download or read book SRIM the Stopping and Range of Ions in Matter written by James F. Ziegler and published by Lulu.com. This book was released on 2008 with total page 683 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This is a textbook the gives the background of the stopping and range of ions in matter (www.SRIM.org). It is written to be the prime resource for those who use SRIM in scientific work."--Lulu.com.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1988 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ion Solid Interactions written by Michael Nastasi and published by Cambridge University Press. This book was released on 1996-03-29 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive guide to an important materials science technique for students and researchers.
Download or read book Low Energy Ion Irradiation of Materials written by Bernd Rauschenbach and published by Springer Nature. This book was released on 2022-08-19 with total page 763 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive introduction to all aspects of low-energy ion–solid interaction from basic principles to advanced applications in materials science. It features a balanced and insightful approach to the fundamentals of the low-energy ion–solid surface interaction, focusing on relevant topics such as interaction potentials, kinetics of binary collisions, ion range, radiation damages, and sputtering. Additionally, the book incorporates key updates reflecting the latest relevant results of modern research on topics such as topography evolution and thin-film deposition under ion bombardment, ion beam figuring and smoothing, generation of nanostructures, and ion beam-controlled glancing angle deposition. Filling a gap of almost 20 years of relevant research activity, this book offers a wealth of information and up-to-date results for graduate students, academic researchers, and industrial scientists working in these areas.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1975 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ion solid Interactions written by Walter M. Gibson and published by . This book was released on 1980 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 974 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sputtering by Particle Bombardment III written by Rainer Behrisch and published by Springer. This book was released on 1991-09-10 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sputtering, the ejection of atoms or groups of atoms from the surface of a solid bombarded by energetic particles, is a widely observed phenomenon that has many applications in today's experimental physics and technology. This is the third and final volume of a comprehensive review on sputtering. Whereas the first two volumes deal primarily with physical aspects such as the theory of sputtering, experimentally observed sputtering yields and surface topography changes, this volume is devoted to the characteristic properties of the sputtered particles and technological applications of sputtering. The particles are characterized by their energy, mass, and angular distributions, along with their charge and excitation states, while the applications described in- clude surface and depth analysis, micromachining, and the production of surface coatings and thin films. As in the previous two volumes, the various chapters have been written by the main authorities in the field. The book addresses a broad audience: scientists active in the field will find the overview and background information they have long been seeking, while students and new comers to surface science and materials science will find a readable introduction to sputtering.
Download or read book Fusion Energy Update written by and published by . This book was released on 1980 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book INIS Atomindex written by and published by . This book was released on 1986 with total page 1606 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1977 with total page 818 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 1420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
