Download or read book Structure property Relationships for Organic Semiconductor Materials written by Ming Lee Tang and published by . This book was released on 2008 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Characterization and Synthesis of Organic Semiconductor Materials for Light emitting Diodes Structure property Relationship PHD written by Jeffrey David Anderson and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design Synthesis and Structure Property Relationship Study of Polymer Field Effect Transistors written by Ting Lei and published by Springer. This book was released on 2015-01-05 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book summarizes Ting Lei’s PhD study on a series of novel conjugated polymers for field-effect transistors (FETs). Studies contain many aspects of polymer FETs, including backbone design, side-chain engineering, property study, conformation effects and device fabrication. The research results have previously scattered in many important journals and conferences worldwide. The book is likely to be of interest to university researchers, engineers and graduate students in materials sciences and chemistry who wish to learn some principles, strategy, and applications of polymer FETs.
Download or read book Structure Property Relationships in Semiconducting Polymers and Small Molecules Probed by Synchrotron X ray Methods written by Gregory M. Su and published by . This book was released on 2015 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic semiconductors are an exciting class of materials that have potential to produce low-cost, printable, and flexible electronic devices. Moving to the next generation of organic semiconductors that will result in greater efficiency requires advancements in the areas of materials chemistry, molecular assembly, predictive modelling, and device optimization. Here, we focus on morphology and demonstrate how it is linked to each of these areas. Understanding the connections among chemistry, thin film microstructure, and charge transport remains a major challenge in the field. We examined materials systems relevant to organic solar cells, memory devices, and transistors, with a focus on synchrotron-based X-ray techniques. For a blend of a polymer and small molecule, applicable to solar cells, control of molecular orientation in the small molecule is especially important for non-fullerene based molecules that exhibit anisotropic charge transport. In ferroelectric-semiconductor polymer blends used in organic memory, improved control over phase separation length scales is achieved by altering the chemistry of the semiconducting polymer to tune polymer-polymer interactions. Complementary simulations can facilitate characterization of organic semiconductors. First-principles predictions of X-ray absorption spectroscopy are applied to semiconducting polymers, and prove critical for understanding complex experimental data related to molecular orientation and electronic structure in general. Overall, these studies provide insights into key factors that should be considered in the development of new organic semiconductors.
Download or read book Modeling and Machine Learning Studies of Structure property Relationship in Organic Systems written by Nikita Sengar and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic materials with a judicious choice of functionalization have emerged as attractive candidates for use as active layers in new electronic technologies. This includes applications such as flexible displays, wearable electronics, and storage devices for gas separation and the capture of solutes such as chemical warfare agents. However, their use in the electronics industry is somewhat limited due to their tendency to pack into multiple, structurally distinct forms (a phenomenon known as polymorphism). For applications in energy storage technologies, due to the versatility of synthesis of organic framework materials, there remains an ongoing need to both elucidate and optimize the principles that govern performance with respect to size- and chemical- selectivity towards organic solutes. To address these challenges, we conducted detailed computational studies to develop a better understanding of the relationship between nanoscale structure and macroscale properties. Understanding polymorphism in organic semiconductors (OS) is critically important since any slight variation in π orbital overlap can lead to drastic differences in the charge carrier mobility. But finding polymorphs is a challenging task, because they are prone to structural reversibility, and have traditionally involved an iterative sampling with the possible structural space driven by those structures that lead to the lowest energy polymorphs (Y. Diao et al., J. Am. Chem. Soc. 136, 17046-17057, 2014). We have addressed this issue here by incorporating Bayesian Optimization into Molecular Dynamics (MD) simulations to predict polymorphs. Our test case was a high-performing organic semiconductor, bis(trimethylsilyl) [1]benzothieno[3,2-b]-benzothiophene (diTMS-BTBT). Our novel approach uncovered the relationship between minimizing the total energy as a function of a chosen design parameter and allowed us to identify the optimal structures by running time-consuming, expensive simulations for only a fraction (~15-20 percent) of the entire set of possible candidates (consisting of over 500 structures). Next, we expanded our investigation to use density functional theory to elucidate the molecular-scale mechanism behind the polymorphic transition in two related organic semiconductors, ditert-butyl [1]benzothieno[3,2-b]-benzothiophene (ditBu-BTBT) and diTMS-BTBT. By comparing their packing environment, we established a molecular "design rule" for selectively accessing both the so-called "nucleation and growth'' and "cooperative'' transition pathways in organic crystals. Finally, we characterized the structural and physical properties of two exemplars of organic woven materials, COF-506 and HKUST-1 MOF functionalized with large (10 nm-dia.) Palladium nanoparticles. Using MD, we explored the propensity of both these materials to be suitable for small-molecule gas diffusion within their densely interwoven matrix of structural entities. Our multiscale computational studies improve our current understanding of structure-property relationships in organic systems, providing key insight into the accelerated development of next-generation electronic materials.
Download or read book Handbook of Organic Materials for Electronic and Photonic Devices written by Oksana Ostroverkhova and published by Woodhead Publishing. This book was released on 2018-11-30 with total page 914 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Organic Materials for Electronic and Photonic Devices, Second Edition, provides an overview of the materials, mechanisms, characterization techniques, structure-property relationships, and most promising applications of organic materials. This new release includes new content on emerging organic materials, expanded content on the basic physics behind electronic properties, and new chapters on organic photonics. As advances in organic materials design, fabrication, and processing that enabled charge unprecedented carrier mobilities and power conversion efficiencies have made dramatic advances since the first edition, this latest release presents a necessary understanding of the underlying physics that enabled novel material design and improved organic device design. - Provides a comprehensive overview of the materials, mechanisms, characterization techniques, and structure property relationships of organic electronic and photonic materials - Reviews key applications, including organic solar cells, light-emitting diodes electrochemical cells, sensors, transistors, bioelectronics, and memory devices - New content to reflect latest advances in our understanding of underlying physics to enable material design and device fabrication
Download or read book Structure property Relationships and Salt Selection for Functional Organic Materials written by Aiden Walls and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: These 13 structures were compared to 50 structures containing NPOH or NPO found on the Cambridge Structural Database (CSD).
Download or read book Electronic Processes in Organic Semiconductors written by Anna Köhler and published by John Wiley & Sons. This book was released on 2015-06-08 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first advanced textbook to provide a useful introduction in a brief, coherent and comprehensive way, with a focus on the fundamentals. After having read this book, students will be prepared to understand any of the many multi-authored books available in this field that discuss a particular aspect in more detail, and should also benefit from any of the textbooks in photochemistry or spectroscopy that concentrate on a particular mechanism. Based on a successful and well-proven lecture course given by one of the authors for many years, the book is clearly structured into four sections: electronic structure of organic semiconductors, charged and excited states in organic semiconductors, electronic and optical properties of organic semiconductors, and fundamentals of organic semiconductor devices.
Download or read book Modern Charge Density Analysis written by Carlo Gatti and published by Springer Science & Business Media. This book was released on 2012-01-09 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focusing on developments from the past 10-15 years, this volume presents an objective overview of the research in charge density analysis. The most promising methodologies are included, in addition to powerful interpretative tools and a survey of important areas of research.
Download or read book Structure property Relationships in Bithiophene and Bithiazole Polymers written by Matthew Paul Brukwicki and published by . This book was released on 2001 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Perovskites written by Richard J. D. Tilley and published by John Wiley & Sons. This book was released on 2016-03-03 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Uniquely describes both the crystallography and properties of perovskite related materials. Practical applications in solar cells, microelectronics and telecommunications Interdisciplinary topic drawing on materials science, chemistry, physics, and geology Contains problems and answers to enhance knowledge retention
Download or read book Exploring Structure Property Relationships in Conjugated Organic Materials written by Blanton Neil Martin and published by . This book was released on 2018 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to accelerate independence from fossil fuels, it is imperative to develop clean and renewable energy sources that can support increasing worldwide demands. Conjugated organic polymers and oligomers can be used as materials in organic photovoltaic (OPV) devices, also known as organic solar cells, which convert sunlight into electricity. In contrast to currently available inorganic solar cells, these devices are promising because of low cost, ease of manufacturing, and flexibility of the resulting solar cell. However, current OPV devices are not efficient enough to compete with inorganic cells, and a significant cause of the lagging efficiency of OPV devices is the inability to design them using theoretical methods. This dissertation describes the development and initial groundwork of a new computational methodology to predict the device properties and efficiency of any oligomer-based OPV device from only the molecular structure of the materials that make it up. Chapter 1 provides an introduction to the problems facing this work, and Chapter 2 describes the methodology in detail. The methodology is multiscale; it takes place at the molecular scale where atomic properties are calculated, at the mesoscale where morphology, or molecular packing, properties are calculated, and at the device scale, where the device properties are calculated. Chapter 3 describes work that explains why existing methods are inadequate for accurate prediction of device properties from molecular structure. Chapter 4 examines in depth the ways in which small changes to the molecular structure of an OPV material profoundly influences the morphology of the material and properties of the OPV device. In Chapters 5 and 6, properties of two other conjugated systems are studied. Chapter 5 discusses structure-property relationships in ligand-protein binding, specifically how changes to the molecular structure of a green fluorescent protein chromophore affects the extent of fluorescence upon binding to human serum albumin, a protein linked to important human diseases. In Chapter 6, discussion follows the work performed to analyze how swapping the positions of two atoms in a series of small conjugated molecules results in flipping a reactivity switch for a Diels-Alder reaction.
Download or read book Computational Studies written by Ambrish Kumar Srivastava and published by CRC Press. This book was released on 2024-08-06 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book covers a diverse range of topics based on computational studies, including modeling and simulations based on quantum chemical studies and molecular dynamics (MD) simulations. It contains quantum chemical studies on several molecules, including biologically relevant molecules and liquid crystals and various aspects of superatomic clusters including superalkalis and superhalogens. It gives an overview of MD simulations and their applications on biomolecular systems such as HIV-1 protease and integrase. Features: Includes first principle methods, density functional theory, as well as molecular dynamics simulations. Explores quantum chemical studies on several molecules. Gives readers an overview of the power of computation. Discusses superatomic clusters, superalkalis, and superhalogens. Covers themes from molecules, clusters, materials, as well as biophysical systems. This book is aimed at researchers and graduate students in materials science and computational and theoretical chemistry.
Download or read book Organic Optoelectronic Materials written by Yongfang Li and published by Springer. This book was released on 2015-05-30 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume reviews the latest trends in organic optoelectronic materials. Each comprehensive chapter allows graduate students and newcomers to the field to grasp the basics, whilst also ensuring that they have the most up-to-date overview of the latest research. Topics include: organic conductors and semiconductors; conducting polymers and conjugated polymer semiconductors, as well as their applications in organic field-effect-transistors; organic light-emitting diodes; and organic photovoltaics and transparent conducting electrodes. The molecular structures, synthesis methods, physicochemical and optoelectronic properties of the organic optoelectronic materials are also introduced and described in detail. The authors also elucidate the structures and working mechanisms of organic optoelectronic devices and outline fundamental scientific problems and future research directions. This volume is invaluable to all those interested in organic optoelectronic materials.
Download or read book Organic Semiconductor Lasers and Tailored Nanostructures for Raman Spectroscopy written by Liu, Xin and published by KIT Scientific Publishing. This book was released on 2015-06-19 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work presents the application of organic semiconductor distributed feedback laser as free-space excitation source in Raman spectroscopy. Surface-enhanced Raman scattering effect is exploited to improve the detection sensitivity. The SERS conditionis achiedved by using substrates consisting of gold-coated polymeric nanopillar arrays. The organic-laser-excited SERS measurements are applied to verify the concentration variation of biomolecule adenosine in aqueous solutions.
Download or read book Advanced Materials written by Theodorus van de Ven and published by Walter de Gruyter GmbH & Co KG. This book was released on 2020-01-20 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Materials gives an unique insight into the specialized materials that are required to run our modern society. Provided within are the fundamental theories and applications of advanced materials for metals, glasses, polymers, composites, and nanomaterials. This book is ideal for scientists and engineers of materials science, chemistry, physics, and engineering, and students of these disciplines.
Download or read book Physical and Chemical Aspects of Organic Electronics written by Christof Wöll and published by John Wiley & Sons. This book was released on 2009-04-22 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic molecules are currently being investigated with regard to their application as active components in semiconductor devices. Whereas devices containing organic molecules for the generation of light - organic light emitting diodes (OLED) - have already reached the market (they e.g. display information on mobile phones), transistors where organic molecules are used to actively control currents and voltages are still in the development stage. In this book the principle problems related to using organic materials as semiconductors and to construct functioning devices will be addressed. A particular emphasis will be put on the difference between inorganic semiconductors such as Si, Ge and GaAs and organic semiconductors (OSC). The special properties of such soft matter require particular approaches for processing characterization and device implementation, which are quite different from the approach used for conventional semiconductors.
