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Books > Professional & Technical > Electronics & communications engineering > Electronics engineering > Electronic devices & materials > General
ZnO has been the central theme of research in the past decade due to its various applications in band gap engineering, and textile and biomedical industries. In nanostructured form, it offers ample opportunities to realize tunable optical and optoelectronic properties and it was also termed as a potential material to realize room temperature ferromagnetism. This book presents 17 high-quality contributory chapters on ZnO related systems written by experts in this field. These chapters will help researchers to understand and explore the varied physical properties to envisage device applications of ZnO in thin film, heterostructure and nanostructure forms.
Evolvable hardware (EHW) is based on the idea of combining a reconfigurable hardware device with genetic algorithms to execute reconfiguration autonomously. FPGA (Field Programmable Gate Array) and PLD (Programmable Logic Devices) are typical examples of reconfigurable hardware devices, for which there is already a market worth more than USD2 Billion US dollars and growing at 23 per cent per year. An example of EHW is NASA's Space Technology 5 nanosatellites, which are scheduled to start measuring Earth's magnetosphere in late 2004. They were designed by NASA engineers using genetic algorithms and 32 Linux PCs. The computers generated small antenna-constructing programs (the genotypes) and executed them to produce designs (the phenotypes). If deployed it will be the first piece of evolved hardware ever to be launched into space.
This book provides an overview of recent developments in experiments probing the fractional quantum Hall (FQH) states of the second Landau level, especially the \nu=5/2 state. It summarizes the state-of-the-art understanding of these FQH states. It furthermore describes how the properties of the FQH states can be probed experimentally, by investigating tunneling and confinement properties. The progress towards the realization of an experiment, allowing to probe the potentially non-Abelian statistics of the quasiparticle excitations at \nu=5/2 is discussed. The book is intended as a reference for graduate students, PostDocs and researchers starting in the field. The experimental part of this book gives practical advice for solving the experimental challenges which researchers studying highly fragile FQH states are faced with.
This book explores the aggregation-induced emission (AIE) effect, which has opened new avenues for the development of advanced luminogenic materials in the aggregate or solid state. By enabling light emission in the practically useful solid state, AIE has the potential to significantly expand the technological applications of luminescent materials. This book addresses principles, methods, and applications of AIEs, offering a new platform for the investigation of light-emitting processes from luminogen aggregates. Applications of AIE include biomedical diagnostics, sensor materials, and optoelectronic devices, among others, and are described in detail within the book. The development of a new generation of AIEgens, a deep understanding of the AIE mechanism(s), and the exploration of advanced technological applications will enable this exciting field to develop further. Headed by the pioneering researcher who started the field, Professor Ben Zhong Tang, this book combines both principles and applications and brings together global researchers in the field to report the progress, current challenges, and potential breakthroughs that may be accomplished in the near future. Provides an authoritative account of the fundamentals, properties, and potential of AIE by the pioneer of this active, highly-researched field; Highlights technological applications of AIE spanning biomedicine, sensor materials, and optoelectronics, among others; Presents a comprehensive view on challenges in the further development of AIE and derived technologies.
Integrated Optics explains the subject of optoelectronic devices and their use in integrated optics and fiber optic systems. The approach taken is to emphasize the physics of how devices work and how they can be (and have been) used in various applications as the field of optoelectronics has progressed from microphotonics to nanophotonics. Illustrations and references from technical journals have been used to demonstrate the relevance of the theory to currently important topics in industry. By reading this book, scientists, engineers, students and engineering managers can obtain an overall view of the theory and the most recent technology in Integrated Optics.
This book presents highlighted results coming up from NanoCarbon2011, a Brazilian Carbon event. The topics cover the latest advances in Brazilian basic and applied research related to different carbon materials. The chapters address reviews on their fundamental and outstanding properties and describe various classes of new promising high-tech applications for carbon materials.
This book brings together the recent cutting-edge work on computational methods in photonics and their applications. The latest advances in techniques such as the Discontinuous Galerkin Time Domain method, Finite Element Time Domain method, Finite Difference Time Domain method as well as their applications are presented. Key aspects such as modelling of non-linear effects (Second Harmonic Generation, lasing in fibers, including gain nonlinearity in metamaterials), the acousto-optic effect, and the hydrodynamic model to explain electron response in nanoplasmonic structures are included. The application areas covered include plasmonics, metamaterials, photonic crystals, dielectric waveguides, fiber lasers. The chapters give a representative survey of the corresponding area.
"Phase Change Materials: Science and Applications" provides a unique introduction of this rapidly developing field. Clearly written and well-structured, this volume describes the material science of these fascinating materials from a theoretical and experimental perspective. Readers will find an in-depth description of their existing and potential applications in optical and solid state storage devices as well as reconfigurable logic applications. Researchers, graduate students and scientists with an interest in this field will find "Phase Change Materials" to be a valuable reference.
This book covers the state-of-the-art research in nanoporous metals for potential applications in advanced energy fields, including proton exchange membrane fuel cells, Li batteries (Li ion, Li-S, and Li-O2), and supercapacitors. The related structural design and performance of nanoporous metals as well as possible mechanisms and challenges are fully addressed. The formation mechanisms of nanoporous metals during dealloying, the microstructures of nanoporous metals and characterization methods, as well as miscrostructural regulation of nanoporous metals through alloy design of precursors and surface diffusion control are also covered in detail. This is an ideal book for researchers, engineers, graduate students, and government/industry officers who are in charge of R&D investments and strategy related to energy technologies.
1 Structures of and Bonding in Electronic Materials.- 1. Introduction.- 2. The Structure of the Group IV Elements and of III-V and II-VI Semiconductors.- 3. Bonding in and Relationships Between Zinc Blende and Wurtzite-Type Compounds.- 4. Other Structure Types.- References.- 2 Electron Energy Bands.- 1. Introduction.- 2. Models.- 2.1. The Nearly Free Electron Model.- 2.2. The Tight-Binding Model.- 2.3. The Relationship Between the Results of the Two Models.- 2.4. The Relationship Between Maximum Energy and k.- 2.5. Three-Dimensional Effects.- 2.6. Real Materials.- 3. Effective Mass.- 4. Positive Holes.- 5. Methods of Computing Band Structure.- 6. Conductance, the Octet Rule, and Bands.- 7. Postscript: The Kronig-Penney Model.- References.- 3 Electrical Properties of Semiconductors.- 1. Introduction.- 2. Intrinsic Semiconductors.- 3. Extrinsic Semiconductors.- 4. Scattering and Mobility of Charge Carriers.- 5. High-Field Effects.- 4 Optical Properties.- 1. Introduction.- 2. The Classical Approach.- 2.1. Relation to Conductivity.- 2.2. Optical Constants and Relative Permittivity.- 2.3. Resonance.- 3. Absorption Mechanisms.- 3.1. Fundamental Absorption.- 3.2. Other Mechanisms.- 4. Photoconductivity.- 5. Emission.- 5.1. Spontaneous Emission.- 5.2. Stimulated Emission.- 5.3. Nonradiative Recombination.- 6. Anisotropic Materials.- 7. Polarized Light.- 8. Thin-Film Systems.- 5 Interfaces and Low-Dimensional Structures.- 1. Introduction.- 2. Band Structure at a Heterojunction Interface.- 3. Low-Dimensional Effects.- 4. New Effects in Low-Dimensional Structures.- 5. Materials Growth.- 6. Other Low-Dimensional Structures.- 7. Applications.- 8. Conclusions.- References.- 6 Key Electrical Devices.- 1. Introduction.- 2. Basic Semiconductor Diodes.- 2.1. The p-n Junction Diode.- 2.2. The Metal-Semiconductor or Schottky Diode.- 2.3. Ohmic Contacts.- 3. Bipolar Junction Transisistors.- 4. Field Effect Transistors.- 4.1. MOSFETs.- 4.2. JFETs and MESFETs.- 5. Materials for Electronic Devices: The Significance of Silicon.- 6. Gallium-Arsenide-Based Transistors.- 6.1. The GaAs MESFET.- 6.2. Heterojunction-Based Devices.- 7. Other Materials.- 8. Conclusions and Future Prospects.- References.- 7 Key Optoelectronic Devices.- 1. Introduction.- 2. Materials Technologies.- 2.1. Important Optoelectronic Materials.- 2.2. Epitaxy.- 3. Light-Emitting Devices.- 3.1. Basic Principles.- 3.2. Light-Emitting Diodes (LEDs).- 3.3. Semiconductor Lasers.- 4. Optical Detectors.- 5. Waveguide Components.- 6. Optoelectronic Integrated Circuits.- 7. Conclusions.- 8 Thermodynamics and Defect Chemistry of Compound Semiconductors.- 1. Introduction.- 2. Elements of Multicomponent Phase Equilibria.- 2.1. Gibbs's Phase Rule.- 2.2. Pressure-Temperature Equilibrium.- 2.3. Solid-Liquid Equilibria in Multicomponent Systems.- 2.4. Representation of the Activity Coefficients.- 3. Solid-Liquid Phase Equilibria in Ternary III-V Compounds...- 4. Solid-Gas Phase Equilibria in Multicomponent III-V compounds.- 5. Native Point Defects in Compound Semiconductors.- 6. The Incorporation of Solute (Dopant) Atoms.- 7. Summary and Conclusions.- References.- 9 Single Crystal Growth I: Melt Growth.- 1. Introduction: General Principles.- 2. Role of Melt Growth.- 3. Constraints to Melt Growth.- 3.1. Chemical Reactivity.- 3.2. Vapor Pressure.- 3.3. Mechanical.- 3.4. Fundamental.- 4. Techniques of Melt Growth.- 4.1. Vertical Pulling or Czochralski Growth.- 4.2. Float Zone.- 4.3. Horizontal Bridgman.- 4.4 Liquid Encapsulation.- 5. Fundamentals.- References.- 10 Single Crystal Growth II: Epitaxial Growth.- 1. Introduction: General Principles.- 2. Role of Epitaxy.- 3. Constraints to Epitaxial Growth.- 3.1. Liquid Phase Epitaxy (LPE).- 3.2. Vapor Phase Epitaxy (VPE).- 4. Techniques of Epitaxial Growth.- 4.1. Liquid Phase Epitaxy.- 4.2. Vapor Phase Epitaxy: Conventional Inorganic Epitaxy.- 4.3. Molecular Beam Epitaxy (MBE): Metalorganic Molecular Beam Epitaxy (MOMBE).- 4.4. Metalorganic Vapor Phase Ep...
Organic and printed electronics can enable a revolution in the applications of electronics and this book offers readers an overview of the state-of-the-art in this rapidly evolving domain. The potentially low cost, compatibility with flexible substrates and the wealth of devices that characterize organic and printed electronics will make possible applications that go far beyond the well-known displays made with large-area silicon electronics. Since organic electronics are still in their early stage, undergoing transition from lab-scale and prototype activities to production, this book serves as a valuable snapshot of the current landscape of the different devices enabled by this technology, reviewing all applications that are developing and those can be foreseen. "
From the reviews: " ...] a welcome addition to the literature. ...] This book promises to make a valuable contribution to the education of graduate students in electrical and computer engineering, and a very useful addition to the library of the maturer investigator in SoC designs or related fields." Microelectronics Reliability
Active RC filters were first applied in the late 1950s. Since then,
there has been a rapid development in both theoretical research and
practical realization methods, as witnessed by the appearance of
some 3,000 publications on active RC filters. This abundance of
literature has, however, caused a great deal of confusion for
non-specialist engineers. In order to solve a problem of filter
design, a prolonged study is usually needed in order to make the
correct choice between a wide variety of filter structures.
Furthermore, most publications are intended to solve detailed
problems for experts in the field, with little useful contribution
for practising electrical engineers.
Despite the recent development and interest in the photonics of metallic wire structures, the relatively simple concepts and physics often remain obscured or poorly explained to those who do not specialize in the field. Electromagnetic Behaviour of Metallic Wire Structures provides a clear and coherent guide to understanding these phenomena without excessive numerical calculations. Including both background material and detailed derivations of the various different formulae applied, Electromagnetic Behaviour of Metallic Wire Structures describes how to extend basic circuit theory relating to voltages, currents, and resistances of metallic wire networks to include situations where the currents are no longer spatially uniform along the wire. This lays a foundation for a deeper understanding of the many new phenomena observed in meta-electromagnetic materials. Examples of applications are included to support this new approach making Electromagnetic Behaviour of Metallic Wire Structures a comprehensive and self-contained volume suitable for use by specialists, non-specialist, researchers and professionals in other relevant fields and even students.
This is a comprehensive guide to fault injection techniques used to evaluate the dependability of a digital system. The description and the critical analysis of different fault injection techniques and tools are authored by key scientists in the field of system dependability and fault tolerance.
This book introduces physical effects and fundamentals of piezoelectric sensors and actuators. It gives a comprehensive overview of piezoelectric materials such as quartz crystals and polycrystalline ceramic materials. Different modeling approaches and methods to precisely predict the behavior of piezoelectric devices are described. Furthermore, a simulation-based approach is detailed which enables the reliable characterization of sensor and actuator materials. One focus of the book lies on piezoelectric ultrasonic transducers. An optical approach is presented that allows the quantitative determination of the resulting sound fields. The book also deals with various applications of piezoelectric sensors and actuators. In particular, the studied application areas are * process measurement technology, * ultrasonic imaging, * piezoelectric positioning systems and * piezoelectric motors. The book addresses students, academic as well as industrial reseachers and development engineers who are concerned with piezoelectric sensors and actuators.
The book is devoted to the problem of microgeometry properties and anisotropy relations in modern piezo-active composites. These materials are characterized by various electromechanical properties and remarkable abilities to convert mechanical energy into electric energy and vice versa. Advantages of the performance of the composites are discussed in the context of the orientation effects, first studied by the authors for main connectivity patterns and with due regard to a large anisotropy of effective piezoelectric coefficients and electromechanical coupling factors. The novelty of the book consists in the systematization results of orientation effects, the anisotropy of piezoelectric properties and their role in forming considerable hydrostatic piezoelectric coefficients, electromechanical coupling factors and other parameters in the composites based on either ferroelectric ceramic or relaxor-ferroelectric single crystals.
TiO2 Nanotube Arrays: Synthesis, Properties, and Applications is the first book to provide an overview of this rapidly growing field. Vertically oriented, highly ordered TiO2 nanotube arrays are unique and easily fabricated materials with an architecture that demonstrates remarkable charge transfer as well as photocatalytic properties. This volume includes an introduction to TiO2 nanotube arrays, as well as a description of the material properties and distillation of the current research. Applications considered include gas sensing, heterojunction solar cells, water photoelectrolysis, photocatalytic CO2 reduction, as well as several biomedical applications. Written by leading researchers in the field, TiO2 Nanotube Arrays: Synthesis, Properties, and Applications is a valuable reference for chemists, materials scientists and engineers involved with renewable energy sources, biomedical engineering, and catalysis, to cite but a few examples.
This book, "Integrated Chemical Microsensor Systems in CMOS Technology," provides a comprehensive treatment of the highly interdisciplinary field of CMOS chemical microsensor systems. It is targeted at students, scientists and engineers who are interested in gaining an introduction to the field of chemical sensing since all the necessary fundamental knowledge is included. However, as it provides detailed information on all important issues related to the realization of chemical microsensors in CMOS technology, it also addresses experts well familiar with the field. After a brief introduction, the fundamentals of chemical sensing are presented. Fabrication and processing steps that are commonly used in the semiconductor industry are then detailed followed by a short description of the microfabrication techniques, and of the CMOS substrate and materials. Thereafter, a comprehensive overview of semiconductor-based and CMOS-based transducer structures for chemical sensors is given. CMOS-technology is then introduced as platform technology, which enables the integration of these microtransducers with the necessary driving and signal conditioning circuitry on the same chip. In a next section, the development of monolithic multisensor arrays and fully developed microsystems with on-chip sensor control and standard interfaces is described. A short section on packaging shows that techniques from the semiconductor industry can be applied to chemical microsensor packaging. The book concludes with a brief outlook on future developments, such as the realization of more complex integrated microsensor systems and methods to interface biological materials, such as cells, with CMOS microelectronics.
Combining ready-to-use programs, design formulas, design theory and optimization algorithms for linear microwave circuits, this book contains source code for the various programs cited in the text. A special floppy disk that contains the source code is available.
The book gives an overview of the state-of-the-art in SigmaDelta design and of the challenges for future realizations. It provides an understanding of the fundamental power efficiency of SigmaDelta converters. In addition, it presents an analysis of the power consumption in the decimation filter. Understanding these power/performance trade-offs, it becomes clear that straight-forward digitization of a conditioning channel, i.e. exchanging analog for digital conditioning, comes at a major power penalty.
This book covers the topic of vibration energy harvesting using piezoelectric materials. Piezoelectric materials are analyzed in the context of their electromechanical coupling, heterogeneity, microgeometry and interrelations between electromechanical properties. Piezoelectric ceramics and composites based on ferroelectrics are advanced materials that are suitable for harvesting mechanical energy from vibrations using inertial energy harvesting which relies on the resistance of a mass to acceleration and kinematic energy harvesting which couples the energy harvester to the relative movement of different parts of a source. In addition to piezoelectric materials, research efforts to develop optimization methods for complex piezoelectric energy harvesters are also reviewed. The book is important for specialists in the field of modern advanced materials and will stimulate new effective piezotechnical applications.
As the deep-ultraviolet (DUV) laser technology continues to mature, an increasing number of industrial and manufacturing applications are emerging. For example, the new generation of semiconductor inspection systems is being pushed to image at increasingly shorter DUV wavelengths to facilitate inspection of deep sub-micron features in integrated circuits. DUV-sensitive charge-coupled device (CCD) cameras are in demand for these applications. Although CCD cameras that are responsive at DUV wavelengths are now available, their long-term stability is still a major concern. This book describes the degradation mechanisms and long-term performance of CCDs in the DUV, along with new results of device performance at these wavelengths.
Using the nano metric resolution of atomic force microscopy techniques, this work explores the rich fundamental physics and novel functionalities of domain walls in ferroelectric materials, the nano scale interfaces separating regions of differently oriented spontaneous polarization. Due to the local symmetry-breaking caused by the change in polarization, domain walls are found to possess an unexpected lateral piezoelectric response, even when this is symmetry-forbidden in the parent material. This has interesting potential applications in electromechanical devices based on ferroelectric domain patterning. Moreover, electrical conduction is shown to arise at domain walls in otherwise insulating lead zirconate titanate, the first such observation outside of multiferroic bismuth ferrite, due to the tendency of the walls to localize defects. The role of defects is then explored in the theoretical framework of disordered elastic interfaces possessing a characteristic roughness scaling and complex dynamic response. It is shown that the heterogeneous disorder landscape in ferroelectric thin films leads to a breakdown of the usual self-affine roughness, possibly related to strong pinning at individual defects. Finally, the roles of varying environmental conditions and defect densities in domain switching are explored and shown to be adequately modelled as a competition between screening effects and pinning. |
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