Download or read book Solitons and Polarons in Quasi one Dimensional Conducting Polymers and Related Materials written by and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years it has become increasingly appreciated that fundamentally nonlinear excitations - solitons - play an essential role in an incredible variety of natural systems. These solitons, which frequently exhibit remarkable stability under interactions and perturbations, often dominate the transport, response, or structural properties of the systems in which they occur. In this article, we present an introduction to the solitons that occur in quasi-one-dimensional conducting polymers (synmetals) and related systems. The relevance of this subject to molecular electronic devices is twofold. First, many of these materials have molecular structures similar to possible prototype molecular switches. Second, to understand in detail how a molecular electronic device could work, it is essential to have a broad perspective on the nature of possible excitations in a variety of natural and synthetic molecular materials. 51 references.
Download or read book Solitons Polarons in Conducting Polymers written by Lu Yu and published by World Scientific. This book was released on 1988 with total page 774 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polyacetylence, (CH)x is the simplest conjugated polymer. Prestine polyacetylence is a good insulator, whereas its highly doped version exhibits metal-like electrical conductivity. This book gives a detailed introduction to this rapidly-developing field is given along with a collection of original papers. The main purpose is to help chemists and physicists grasp the main ideas and most important facts; an expert may also find it useful as a reference volume.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1983 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conjugated Conducting Polymers written by Helmut Kiess and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews the current understanding of electronic, optical and magnetic properties of conjugated polymers in both the semiconducting and metallic states. It introduces in particular novel phenomena and concepts in these quasi one-dimensional materials that differ from the well-established concepts valid for crystalline semiconductors. After a brief introductory chapter, the second chapter presents basic theore tical concepts and treats in detail the various models for n-conjugated polymers and the computational methods required to derive observable quantities. Specific spatially localized structures, often referred to as solitons, polarons and bipolarons, result naturally from the interaction between n-electrons and lattice displacements. For a semi-quantitative understanding of the various measure ments, electron-electron interactions have to be incorporated in the models; this in turn makes the calculations rather complicated. The third chapter is devoted to the electrical properties of these materials. The high metallic conductivity achieved by doping gave rise to the expression conducting polymers, which is often used for such materials even when they are in their semiconducting or insulating state. Although conductivity is one of the most important features, the reader will learn how difficult it is to draw definite conclusions about the nature of the charge carriers and the microscopic transport mechanism solely from electrical measurements. Optical properties are discussed in the fourth chapter.
Download or read book ERDA Energy Research Abstracts written by and published by . This book was released on 1983 with total page 1048 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conducting Polymers written by Faris Yılmaz and published by BoD – Books on Demand. This book was released on 2016-10-05 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: An authentic revolution took place in the area of solid-state chemistry and physics just after World War II. The century of solid state started from the modest beginnings of the transistor at Bell Laboratory. Since then, the area of science and technology has been directed primarily toward the study of alloys, ceramics, and inorganic semiconductors. The size of electronic devices became smaller and smaller, while the dimensionality of materials was also reduced just after the invention of the integrated circuit. It is at this point that the advent of the discovery of quasi one-dimensional conductors has opened up a whole new area of ''nonclassical'' solid-state chemistry and physics. In the modern world, plastic and electrical devices are always tightly integrated together. However, it was in 1977 that an electrically conductive, quasi one-dimensional organic polymer, polyacetylene, was discovered. During the past 30 years, a variety of different conducting polymers have been developed. Excitement about these polymeric materials is evidenced by the fact that the field of conducting polymers has attracted scientists from such diverse areas of interest as synthetic chemistry, electrochemistry, solid-state physics, materials science, polymer science, electronics, and electrical engineering.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Organic Materials for Photonics written by G. Zerbi and published by Elsevier. This book was released on 2013-10-22 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polyconjugated organic materials are revealing amorphous electrical and non-linear optical properties; this fact is opening up a whole new field of Materials Science aimed at the development of new technologies. For many years inorganic materials were studied mostly for non-linear optical properties. When organic molecules began to show larger and faster responses, both physical chemists and organic chemists became involved in understanding the physical phenomena at a molecular level, with the hope of synthesizing new and better molecular systems. The non-linear optical responses of this class of organic materials are presently attracting considerable attention as an active field of research both in academic and industrial laboratories. Due to the variety of problems and techniques involved, students and beginners with different backgrounds who approach polyconjugated materials do not find it an easy field to enter. This book introduces in a comprehensive and tutorial way the necessary concepts and relevant references which will help the reader to grasp the fundamental concepts of polyconjugated organic materials and perceive the relations between them.
Download or read book Relaxation In Polymers written by Takayoshi Kobayashi and published by World Scientific. This book was released on 1993-11-24 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conjugated polymers are attractive from the viewpoint of possible applications as novel nonlinear optical materials and conductive materials. They are also very important as a group of materials of one dimensionality. The progress of research in this field is very rapid. At the present stage it is extremely useful to have review articles giving information on the most recent progress.Relaxation in Polymers contains state-of-the-art reviews on: ultrafast responses in various conjugated polymers with large optical nonlinearity; ultrafast relaxation in polysilanes; electronic properties of polysilanes; fast transient photoconductivity studies of polyacetylene and polydiacetylene; evolution of photoexcitations in polyacetylene and related polymers from femtoseconds to milliseconds; photoexcited states in conjugated polymers, optical properties of halogen-bridged mixed-valent metal complexes and dynamics of soliton pairs in polyacetylene.
Download or read book Molecular Electronic Devices II written by Carter and published by CRC Press. This book was released on 1987-08-28 with total page 860 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book One Dimensional Metals written by Siegmar Roth and published by John Wiley & Sons. This book was released on 2006-03-06 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Low-dimensional solids are of fundamental interest in materials science due to their anisotropic properties. Written not only for experts in the field, this book explains the important concepts behind their physics and surveys the most interesting one-dimensional systems and discusses their present and emerging applications in molecular scale electronics. The second edition of this successful book has been completely revised to include the remarkable achievements of the last ten years of research and applications. Chemists, polymer and materials scientists as well as students will find this book a very readable introduction to the solid-state physics of electronic materials.
Download or read book Handbook of Advanced Electronic and Photonic Materials and Devices Ten Volume Set written by Hari Singh Nalwa and published by Academic Press. This book was released on 2000-10-09 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vol. 1: Semiconductors;Vol. 2: Semiconductors Devices;Vol. 3: High-Tc Superconductors and Organic Conductors; Vol. 4: Ferroelectrics and Dielectrics; Vol. 5: Chalcogenide Glasses and Sol-Gel Materials; Vol. 6 Nanostructured Materials; Vol. 7: Liquid Crystals, Display and Laser Materials; Vol. 8: Conducting Polymers; Vol. 9: Nonlinear Optical Materials; Volume 10: Light-Emitting Diodes, Lithium Batteries and Polymer Devices
Download or read book Conducting Polymers written by Ram K. Gupta and published by CRC Press. This book was released on 2022-04-19 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conducting polymers are versatile materials that possess both the unique properties of polymeric materials (elastic behavior, reversible deformation, flexibility, etc.) and the ability to conduct electricity with bulk conductivities comparable to those of metals and semiconductors. Conducting Polymers: Chemistries, Properties and Biomedical Applications provides current, state-of-the-art knowledge of conducting polymers and their composites for biomedical applications. This book covers the fundamentals of conducting polymers, strategies to modify the structure of conducting polymers to make them biocompatible, and their applications in various biomedical areas such as drug/gene delivery, tissue engineering, antimicrobial activities, biosensors, etc. FEATURES Covers the state-of-the-art progress on biodegradable conducting polymers for biomedical applications Presents synthesis, characterization, and applications of conducting polymers for various biomedical research Provides the fundamentals of biodegradation mechanisms and the role of conduction in biomedical devices Offers details of novel methods and advanced technologies used in biomedical applications using conducting polymers Highlights new directions for scientists, researchers, and students to better understand the chemistry, technologies, and applications of conducting polymers This book is essential reading for all academic and industrial researchers working in the fields of materials science, polymers, nanotechnology, and biomedical technology.
Download or read book 2 mm Wave Band EPR Spectroscopy of Condensed Systems written by V. I. Krinichnyi and published by CRC Press. This book was released on 2018-01-18 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first book to summarize the problems of using modern high-resolution 2-mm wave band EPR spectroscopy in an interdisciplinary field for the investigation of various condensed systems. The material is well illustrated and the applications are as diverse as possible. The main subjects included are: unique characteristics of 2-mm EPR spectroscopy and appropriate experimental techniques, dynamics and polarity of radical microenvironment in model and biological systems, and the nature of charge carriers and charge transfer mechanisms in organic polymer semiconductors.
Download or read book Conjugated Conducting Polymers written by Helmut Kiess and published by . This book was released on 1992-07-09 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solitons and Polarons in Conducting Polymers written by Lu Yy and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Statics and Dynamics of Nonlinear Systems written by Giorgio Benedek and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: The investigation of the properties of nonlinear systems is one of the fast deve loping areas of physics. In condensed matter physics this 'terra incognita' is approached from various starting points such as phase transitions and renormali zation group theory, nonlinear models, statistical mechanics and others. The study of the mutual interrelations of these disciplines is important in developing uni fying methods and models towards a better understanding of nonlinear systems. The present book collects the lectures and seminars delivered at the workshop on "Statics and Dynamics of Nonlinear Systems" held at the Centre for SCientific Culture "Ettore Majorana·" in Erice;· Italy, July 1 to 11, 1983, in the framework of the International School of Materials Science and Technology. Experts and young researchers came together to discuss nonlinear phenomena in condensed matter physics. The book is divided into five parts, each part containing a few general artic les introducing the subject, followed by related specialized papers. The first part deals with basic properties of nonlinear systems including an introduction to the general theoretical methods. Contrfbutions to the nonlinear aspects of phase transitions are collected in the second part. In the third part properties of incommensurate systems are discussed. Here, competing interactions lead to charge-density waves, soliton lattices and other complex structures. Another point of special interest, illustrated in the fourth part, is the 'chaotic' be havior of various systems such as Josephson junctions and discrete lattices.
