Download or read book Investigation of Film Surface Roughness and Porosity Dependence on Lattice Size in a Porous Thin Film Deposition Process Via Kinetic Monte Carlo Simulations written by Jianqiao Huang and published by . This book was released on 2009 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Control Handbook three volume set written by William S. Levine and published by CRC Press. This book was released on 2018-10-08 with total page 3526 pages. Available in PDF, EPUB and Kindle. Book excerpt: At publication, The Control Handbook immediately became the definitive resource that engineers working with modern control systems required. Among its many accolades, that first edition was cited by the AAP as the Best Engineering Handbook of 1996. Now, 15 years later, William Levine has once again compiled the most comprehensive and authoritative resource on control engineering. He has fully reorganized the text to reflect the technical advances achieved since the last edition and has expanded its contents to include the multidisciplinary perspective that is making control engineering a critical component in so many fields. Now expanded from one to three volumes, The Control Handbook, Second Edition brilliantly organizes cutting-edge contributions from more than 200 leading experts representing every corner of the globe. They cover everything from basic closed-loop systems to multi-agent adaptive systems and from the control of electric motors to the control of complex networks. Progressively organized, the three volume set includes: Control System Fundamentals Control System Applications Control System Advanced Methods Any practicing engineer, student, or researcher working in fields as diverse as electronics, aeronautics, or biomedicine will find this handbook to be a time-saving resource filled with invaluable formulas, models, methods, and innovative thinking. In fact, any physicist, biologist, mathematician, or researcher in any number of fields developing or improving products and systems will find the answers and ideas they need. As with the first edition, the new edition not only stands as a record of accomplishment in control engineering but provides researchers with the means to make further advances.

Download or read book The Control Handbook written by William S. Levine and published by CRC Press. This book was released on 2018-10-08 with total page 944 pages. Available in PDF, EPUB and Kindle. Book excerpt: At publication, The Control Handbook immediately became the definitive resource that engineers working with modern control systems required. Among its many accolades, that first edition was cited by the AAP as the Best Engineering Handbook of 1996. Now, 15 years later, William Levine has once again compiled the most comprehensive and authoritative resource on control engineering. He has fully reorganized the text to reflect the technical advances achieved since the last edition and has expanded its contents to include the multidisciplinary perspective that is making control engineering a critical component in so many fields. Now expanded from one to three volumes, The Control Handbook, Second Edition organizes cutting-edge contributions from more than 200 leading experts. The second volume, Control System Applications, includes 35 entirely new applications organized by subject area. Covering the design and use of control systems, this volume includes applications for: Automobiles, including PEM fuel cells Aerospace Industrial control of machines and processes Biomedical uses, including robotic surgery and drug discovery and development Electronics and communication networks Other applications are included in a section that reflects the multidisciplinary nature of control system work. These include applications for the construction of financial portfolios, earthquake response control for civil structures, quantum estimation and control, and the modeling and control of air conditioning and refrigeration systems. As with the first edition, the new edition not only stands as a record of accomplishment in control engineering but provides researchers with the means to make further advances. Progressively organized, the other two volumes in the set include: Control System Fundamentals Control System Advanced Methods

Download or read book Metal film growth on weakly interacting substrates written by Víctor Gervilla Palomar and published by Linköping University Electronic Press. This book was released on 2019-02-11 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thin films are nanoscale layers of material, with exotic properties useful in diverse areas, ranging from biomedicine to nanoelectronics and surface protection. Film properties are not only determined by their chemical composition, but also by their microstructure and roughness, features that depend crucially on the growth process due to the inherent out-of equilibrium nature of the film deposition techniques. This fact suggest that it is possible to control film growth, and in turn film properties, in a knowledge-based manner by tuning the deposition conditions. This requires a good understanding of the elementary film-forming processes, and the way by which they are affected by atomic-scale kinetics. The kinetic Monte Carlo (kMC) method is a simulation tool that can model film evolution over extended time scales, of the order of microseconds, and beyond, and thus constitutes a powerful complement to experimental research aiming to obtain an universal understanding of thin film formation and morphological evolution. In this work, kMC simulations, coupled with analytical modelling, are used to investigate the early stages of formation of metal films and nanostructures supported on weakly-interacting substrates. This starts with the formation and growth of faceted 3D islands, that relies first on facile adatom ascent at single-layer island steps and subsequently on facile adatom upward diffusion from the base to the top of the island across its facets. Interlayer mass transport is limited by the rate at which adatoms cross from the sidewall facets to the island top, a process that determines the final height of the islands and leads non-trivial growth dynamics, as increasing temperatures favour 3D growth as a result of the upward transport. These findings explain the high roughness observed experimentally in metallic films grown on weakly-interacting substrates at high temperatures. The second part of the study focus on the next logical step of film formation, when 3D islands come into contact and fuse into a single one, or coalesce. The research reveals that the faceted island structure governs the macroscopic process of coalescence as well as its dynamics, and that morphological changes depend on 2D nucleation on the II facets. In addition, deposition during coalescence is found to accelerate the process and modify its dynamics, by contributing to the nucleation of new facets. This study provides useful knowledge concerning metal growth on weakly-interacting substrates, and, in particular, identifies the key atomistic processes controlling the early stages of formation of thin films, which can be used to tailor deposition conditions in order to achieve films with unique properties and applications.

Download or read book Kinetic Monte Carlo Simulations of Thin Film Deposition and Growth written by Oana Tataru Hogrefe and published by . This book was released on 2000 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evolution of Thin Film Morphology written by Matthew Pelliccione and published by Springer Science & Business Media. This book was released on 2008-01-29 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: The focus of this book is on modeling and simulations used in research on the morphological evolution during film growth. The authors emphasize the detailed mathematical formulation of the problem. The book will enable readers themselves to set up a computational program to investigate specific topics of interest in thin film deposition. It will benefit those working in any discipline that requires an understanding of thin film growth processes.

Download or read book Glancing Angle Deposition of Thin Films written by Matthew M. Hawkeye and published by John Wiley & Sons. This book was released on 2014-07-03 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a highly practical treatment of Glancing Angle Deposition (GLAD), a thin film fabrication technology optimized to produce precise nanostructures from a wide range of materials. GLAD provides an elegant method for fabricating arrays of nanoscale helices, chevrons, columns, and other porous thin film architectures using physical vapour deposition processes such as sputtering or evaporation. The book gathers existing procedures, methodologies, and experimental designs into a single, cohesive volume which will be useful both as a ready reference for those in the field and as a definitive guide for those entering it. It covers: Development and description of GLAD techniques for nanostructuring thin films Properties and characterization of nanohelices, nanoposts, and other porous films Design and engineering of optical GLAD films including fabrication and testing, and chiral films Post-deposition processing and integration to optimize film behaviour and structure Deposition systems and requirements for GLAD fabrication A patent survey, extensive relevant literature, and a survey of GLAD's wide range of material properties and diverse applications.

Download or read book Kinetic Monte Carlo Simulation of Chemical Vapor Deposition Growth of Thin Films written by Martine Kalke and published by . This book was released on 2002 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reactive Sputter Deposition written by Diederik Depla and published by Springer Science & Business Media. This book was released on 2008-06-24 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this valuable work, all aspects of the reactive magnetron sputtering process, from the discharge up to the resulting thin film growth, are described in detail, allowing the reader to understand the complete process. Hence, this book gives necessary information for those who want to start with reactive magnetron sputtering, understand and investigate the technique, control their sputtering process and tune their existing process, obtaining the desired thin films.

Download or read book Evolution of Surface Roughness and Texture During Low Temperature Film Deposition written by Oleh Petro Karpenko and published by . This book was released on 1996 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Direct Simulation Monte Carlo Modeling of Silicon Thin Film Deposition Using Supersonic Beams written by Gang Chen and published by . This book was released on 1998 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Theoretical and Experimental Study Into the Kinetics of Solution Phase Thin Film Deposition written by Cyrus Schaaf and published by . This book was released on 2017 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: The performance of electronic and optoelectronic devices based on solution-processed organic semiconductor layers is strongly influenced by their mesoscale polycrystalline structure, including domain size and spatial distributions. In solution-processed films prepared by spin casting, solvent-based printing, and related methods, morphology is governed by a combination of interrelated thermodynamic and kinetic factors. Classical models of crystal formation in bulk solution or on bare surfaces in vacuum-deposited films fail to adequately capture these effects; the current theoretical understanding of crystallization in solution-deposited films is generally unable to provide much insight, let alone predictive design guidance for tailoring films with specific structural characteristics for a given set of experimental conditions and chemical properties. In this thesis solution-phase thin film formation has been studied for the purpose of developing and new experimental techniques new models for understanding and predicting mesoscale film structure and crystal morphology. I will describe how nucleation can be modeled, and the predictions tested against experiment, by an approach that enables quantitative prediction of crystal coverage and intercrystalline spacing statistics as a function of processing conditions, using only a small number of experimentally-measureable parameters. To do this, a model is introduced that combines a mean-field rate equation treatment of monomer aggregation kinetics with classical nucleation theory and a supersaturation-dependent critical nucleus size to solve for the quasi-two-dimensional temporally- and spatially-varying monomer concentration and nucleation rate. Excellent agreement is observed with measured nucleation densities and inter-domain radial distribution functions in submonolayer tetracene films. The model leads to the first universal set of predictive design rules for solution-phase thin film growth capable of guiding the selection of experimental conditions for truly engineered morphological control. Accompanying this theoretical work a first of its kind experiment is also reported, in which monomer concentration has been spatially and temporally mapped in real time during the film formation process. Through the use of high resolution dark field fluorescence microscopy employing an internal fluorescent standard and multi-wavelength imaging optics the concentration dependence is visualized throughout all regimes of thin film formation. In situ measurements of local concentration contributes to the development of models which treat the role of variations in monomer concentration on mesoscale film morphology of polycrystalline thin films. This work opens the door to numerous studies enabling further development of models which allow for predictive control of polycrystalline thin films in solution-phase deposition techniques. In addition to nucleation, growth of crystalline films is modeled through a set of numerical and computational methods which provide insight into the main factors influencing crystal growth habit. It is shown that crystal capture rate correlation with physical properties displays a distinct lack of agreement between the spacing and initial sizes of crystals with their relative growth rates. This lack of correlation points to the need for more sophisticated models. Through the use of a mean field numerical calculation of the volumetric growth rate changes in crystal morphology can be attributed to a variable sticking probability which depends on the crystal face. Kinetic Monte Carlo simulations are used to directly probe the physics which explain the deviation from the typical single sticking coefficient capture model. The change in shape at long deposition times further suggests that crystal growth occurs in distinct regimes which dictate the final morphology of the crystals. This work provides an explanation to the change in shape of crystalline material at long deposition times which can be used to develop models to predict final crystal morphology. This thesis is comprised of several parts. In the first chapter the broader context of the work is discussed. In chapter 2, I discuss the scientific background laying the foundation for theoretical models into solution-phase deposition. In the third chapter, I describe the experimental system as well as results from various measurements of fundamental chemical and physical properties needed later. The fourth chapter describes a set of models which I have developed to predict mesoscale film structure to create a set of universal design rules in order to engineer thin films grown in the solution-phase. In chapter 5, I describe a state of the art experimental set up allowing for monomer concentration to be mapped in real time. Finally in the last chapter I describe a set of exploratory models to describe change in crystal morphology during the course of thin film formation. This thesis creates new understanding, which will allow for an increase in production of thin films for applications where strict control over domain size, shape, spacing, and crystallographic orientation.

Download or read book Stochastic Modeling and Control of Film Porosity Surface Roughness and Thickness in Thin Film Growth written by Gangshi Hu and published by . This book was released on 2010 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Application of Monte Carlo Method in Simulation of Sputtered Thin Film Surfaces written by A. Biswas and published by . This book was released on 2005 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2800 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Combining Monte Carlo Transport and Level Set Surface Evolution for Modeling Vapor Phase Deposition of Thin Films Over Sub micron Features written by John Lewis Smith and published by . This book was released on 2014 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: A hybrid scheme is used to model the vapor phase deposition of thin films at the feature scale. The transport of the chemical species to the substrate surface is modeled with a Collisionless Direct Simulation Monte Carlo (DSMC) method. The Level Set Method is used to model the growth of the thin-film on the substrate. The convergence criteria for these methods were not found in literature. The governing equations for the Level Set Method are, in general, non-linear partial differential equations. The coupling of the DSMC Method with the Level Set Method results in a set of non-Gaussian stochastic non-linear partial differential equations. Developing general convergence criteria proved exceedingly difficult, and only qualitative results are presented to support our convergence criteria. Simulation results are in qualitative agreement with experiments and other results from literature.

Download or read book Monte Carlo Modeling of Thin Film Deposition written by and published by . This book was released on 2002 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this paper we discuss the use of atomistic Monte Carlo simulations to predict film microstructure evolution. We discuss physical vapor deposition, and are primarily concerned with films that are formed by the nucleation and coalescence of 3D islands. Multi-scale modeling is used in the sense that information obtained from molecular dynamics and first principles calculations provide atomic interaction energies, surface and grain boundary properties and diffusion rates for use in the Monte Carlo model. In this paper, we discuss some fundamental issues associated with thin film formation, together with an assessment of the sensitivity of the film morphology to the deposition conditions and materials properties.