Fundamentals Of Interfacial Engineering

Eine in sich geschlossene, umfassende Einführung in die Grundlagen der Grenzflächenphänomene und ihrer Anwendung auf Prozesse und Produktdesign - geschrieben für Ingenieure aus Chemie, Elektronik und Biomedizin. Zwischenmolekulare Wechselwirkungen an der Grenzfläche werden ausführlich behandelt; Eigenschaften, Verarbeitung und Verhalten fluider Grenzflächen werden ebenso diskutiert wie Ober- und Grenzflächenmerkmale fester Stoffe. Dieses Buch ist relevant für den Praktiker in der Industrie, stellt aber gleichzeitig eine wertvolle Hilfe für Lehrkräfte ingenieurwissenschaftlicher Fachrichtungen bei der Ausbildungsplanung dar.

Offers an Interdisciplinary approach to the engineering of functional materials for efficient solar cell technology Written by a collection of experts in the field of solar cell technology, this book focuses on the engineering of a variety of functional materials for improving photoanode efficiency of dye-sensitized solar cells (DSSC). The first two chapters describe operation principles of DSSC, charge transfer dynamics, as well as challenges and solutions for improving DSSCs. The remaining chapters focus on interfacial engineering of functional materials at the photoanode surface to create greater output efficiency. Interfacial Engineering in Functional Materials for Dye-Sensitized Solar Cells begins by introducing readers to the history, configuration, components, and working principles of DSSC It then goes on to cover both nanoarchitectures and light scattering materials as photoanode. Function of compact (blocking) layer in the photoanode and of TiCl4 post-treatment in the photoanode are examined at next. Next two chapters look at photoanode function of doped semiconductors and binary semiconductor metal oxides. Other chapters consider nanocomposites, namely, plasmonic nanocomposites, carbon nanotube based nanocomposites, graphene based nanocomposites, and graphite carbon nitride based nanocompositesas photoanodes. The book: Provides comprehensive coverage of the fundamentals through the applications of DSSC Encompasses topics on various functional materials for DSSC technology Focuses on the novel design and application of materials in DSSC, to develop more efficient renewable energy sources Is useful for material scientists, engineers, physicists, and chemists interested in functional materials for the design of efficient solar cells Interfacial Engineering in Functional Materials for Dye-Sensitized Solar Cells will be of great benefit to graduate students, researchers and engineers, who work in the multi-disciplinary areas of material science, engineering, physics, and chemistry.

Providing in-depth coverage of the technologies and various approaches, Luminous Chemical Vapor Deposition and Interface Engineering showcases the development and utilization of LCVD procedures in industrial scale applications. It offers a wide range of examples, case studies, and recommendations for clear understanding of this innovative science. The book comprises four parts. Part 1 describes the fundamental difference between glow discharge of an inert gas and that of an organic vapor, from which the concepts of Luminous Gas Phase derive. Part 2 explores the various ways of practicing Luminous Vapor Disposition and Treatment depending on the type and nature of substrates. Part 3 covers some very important aspects of surface and interface that could not have been seen clearly without results obtained by application of LCVD. Part 4 offers some examples of interface engineering that show very unique aspects of LCVD interface engineering in composite materials, biomaterial surface and corrosion protection by the environmentally benign process. Timely and up-to-date, the book provides broad coverage of the complex relationships involved in the interface between a gas/solid, liquid/solid, and a solid/solid. The author presents a new perspective on low-pressure plasma and describes key aspects of the surface and interface that could not be shown without the results obtained by LCVD technologies. Features Provides broad coverage of complex relationships involved in interface between a gas/solid, a liquid/solid, and a solid/solid Addresses the importance of the initial step of creating electrical glow discharge Describes the principles of creating chemically reactive species and their growth in the luminous gas phase Focuses on the nature of surface-state of solid and on the creation of imperturbable surface-state by the contacting phase or environment, which is vitally important in creating biocompatible surface, providing super corrosion protection of metals by environmentally benign processes, etc. Offers examples on how to use LCVD in the interface engineering process Presents a new view on low-pressure (low-temperature) plasma and emphasizes the importance of luminous gas phase and chemical reactions that occur in the phase About the author: Dr. Yasuda is one of the pioneers who explored low-pressure plasma for surface modification of materials and deposition of nano films as barrier and perm-selective membranes in the late 1960s. He obtained his PhD in physical and polymer chemistry working on transport properties of gases and vapors in polymers at State University of New York, College of Environmental Science and Forestry at Syracuse, NY. He has over 300 publications in refereed journals and books, and is currently a Professor Emeritus of Chemical Engineering, and Director, Center for Surface Science & Plasma Technology, University of Missouri-Columbia, and is actively engaged in research on the subjects covered by this book.

The study of interfaces is one of the oldest areas of research in materials science. The presence of grain boundaries in materials has long been recognized, as has its crucial role in determining mechanical properties. Another long-recognized concept is that the properties of a surface are quite different from those of the bulk. In recent years, researchers have been able to study these interfaces, both internal and external, with a detail not before possible. These advances have stemmed from the ability to obtain atomic resolution images of interfaces, to measure accurate chemical compositions of interfaces, and to model these interfaces and their properties. This volume goes a step further, beyond structural and chemical studies, to explore how all of this information can be used to engineer interfaces for improved properties and overall improved material performance. Significant attention is given to the crystallographic nature of grain boundaries and interfaces, and the relationship between this nature and the performance of a material. The versatility of electron back-scattering pattern analysis (EBSP) in solving a number of interface-related problems is also featured.

Systematic summary of advances in developing effective methodologies of interface engineering in organic field-effect transistors, from models to experimental techniques Interface Engineering in Organic Field-Effect Transistors covers the state of the art in organic field-effect transistors and reviews charge transport at the interfaces, device design concepts, and device fabrication processes, and gives an outlook on the development of future optoelectronic devices. This book starts with an overview of the commonly adopted methods to obtain various semiconductor/semiconductor interfaces and charge transport mechanisms at these heterogeneous interfaces. Then, it covers the modification at the semiconductor/electrode interfaces, through which to tune the work function of electrodes as well as reveal charge injection mechanisms at the interfaces. Charge transport physics at the semiconductor/dielectric interface are discussed in detail. The book describes the remarkable effect of SAM modification on the semiconductor film morphology and thus the electrical performance. In particular, valuable analysis of charge trapping/detrapping engineering at the interface to realize new functions are summarized. Finally, the sensing mechanisms that occur at the semiconductor/environment interfaces of OFETs and the unique detection methods capable of interfacing organic electronics with biology are discussed. Specific sample topics covered in Interface Engineering in Organic Field-Effect Transistors include: Noncovalent modification methods, charge insertion layer at the electrode surface, dielectric surface passivation methods, and covalent modification methods Charge transport mechanism in bulk semiconductors, influence of additives on materials’ nucleation and morphology, solvent additives, and nucleation agents Nanoconfinement effect, enhancing the performance through semiconductor heterojunctions, planar bilayer heterostructure, ambipolar charge-transfer complex, and supramolecular arrangement of heterojunctions Dielectric effect in OFETs, dielectric modification to tune semiconductor morphology, surface energy control, microstructure design, solution shearing, eliminating interfacial traps, and SAM/SiO2 dielectrics A timely resource providing the latest developments in the field and emphasizing new insights for building reliable organic electronic devices, Interface Engineering in Organic Field-Effect Transistors is essential for researchers, scientists, and other interface-related professionals in the fields of organic electronics, nanoelectronics, surface science, solar cells, and sensors.