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Pi Conjugated Polymers Synthesis And Application In Devices
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Book Synopsis Pi-conjugated Polymers: Synthesis and Application in Devices by : Venkataramanan Seshadri
Download or read book Pi-conjugated Polymers: Synthesis and Application in Devices written by Venkataramanan Seshadri and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The first part of the work embodied in this thesis is towards modifying the electronic band-gap of conjugated polymers consisting of thieno[3,4- b]thiophene as one of the repeat units. Two different approaches were undertaken to prepare copolymers of thieno[3,4-b]thiophene in order to accomplish this. First, a simple simultaneous electropolymerization of two monomers from a solution mixture, and second, an oligomeric approach, wherein an oligomer of thiophene and thieno[3,4-b]thiophene with cyanovinylene spacer units was electrochemically polymerized. Several electroanalytical and spectroscopic techniques were used to characterize these polymers. The major part of the thesis is focused on the electrochromic properties of conjugated polymers both in liquid and solid-state electrochemical cells. Several polymers reported in literature were re-evaluated on the basis of its photopic transmissivity. It is necessary that the contrast in a device is more pronounced at wavelengths, wherein the human eye is most sensitive at a given time of the day. At the same time, it is also important to take into account that the eye is sensitive to a broad spectral range. Hence, this photopic approach is very essential in understanding how the intensity of light can be controlled using electrochromic windows. Furthermore, the optical switchability of solid-state electrochromic windows were also studied. Several issues, such as electrodeposition onto indium doped tinoxide (ITO) surfaces with areas ≥ 30cm2, device stability were addressed during the course of this research. The photopically weighted contrast of the device as a whole was found to be enhanced using derivatives of 3,4-propylenedioxythiophene, belonging to the 3,4-alkylenedioxythiophene family. Finally, new device architecture was studied, wherein very low band-gap conjugated polymer with little/no visible electrochromism was used as the ion-storage layer in a dual polymer configuration. Colorimetric analysis of these devices was compared with the earlier devices incorporating a high band-gap anodically coloring conjugated polymer and low band-gap cathodically coloring polymer. These devices were found to be switching between a deep blue to a sky blue, which is a neutral color, as opposed to deep blue to yellow in the earlier configuration. Yellow filter is known to alter the way colors are perceived by the human eye.
Book Synopsis Conjugated Polymers by : Venkataramanan Seshadri
Download or read book Conjugated Polymers written by Venkataramanan Seshadri and published by . This book was released on 2005 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sulfur-Containing Polymers by : Xing-Hong Zhang
Download or read book Sulfur-Containing Polymers written by Xing-Hong Zhang and published by John Wiley & Sons. This book was released on 2021-03-23 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: A must-have resource to the booming field of sulfur-containing polymers Sulfur-Containing Polymers is a state-of-the-art text that offers a synthesis of the various sulfur-containing polymers from low-cost sulfur resources such as elemental sulfur, carbon disulfide (CS2), carbonyl sulfide (COS) and mercaptan. With contributions from noted experts on the topic, the book presents an in-depth understanding of the mechanisms related to the synthesis of sulfur-containing polymers. The book also includes a review of the various types of sulfur-containing polymers, such as: poly(thioester)s, poly(thioether)s and poly(thiocarbonate)s and poly(thiourethane)s with linear or hyperbranched (dendrimer) architectures. The expert authors provide the fundamentals on the structure-property relationship and applications of sulfur-containing polymers. Designed to be beneficial for both research and application-oriented chemists and engineers, the book contains the most recent research and developments of sulfur-containing polymers. This important book: Offers the first comprehensive handbook on the topic Contains state-of-the-art research on synthesis of sulfur containing polymers from low-cost sulfur-containing compounds Examines the synthesis, mechanism, structure properties, and applications of various types of sulful-containing polymers Includes contributions from well-known experts Written for polymer chemists, materials scientists, chemists in industry, biochemists, and chemical engineers, Sulfur-Containing Polymers offers a groundbreaking text to the field with inforamtion on the most recent research.
Book Synopsis Design, Synthesis, and Application of Novel π-Conjugated Materials - Part II by : Haichang Zhang
Download or read book Design, Synthesis, and Application of Novel π-Conjugated Materials - Part II written by Haichang Zhang and published by Frontiers Media SA. This book was released on 2021-11-09 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Conjugated Polymer Synthesis by : Yoshiki Chujo
Download or read book Conjugated Polymer Synthesis written by Yoshiki Chujo and published by John Wiley & Sons. This book was released on 2011-08-02 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edited and authored by top international experts, this first book on conjugated polymers with a focus on synthesis provides a detailed overview of all modern synthetic methods for these highly interesting compounds. As such, it describes every important compound class, including polysilanes, organoboron compounds, and ferrocene-containing conjugated polymers. An indispensable source for every synthetic polymer chemist.
Book Synopsis Conjugated Conducting Polymers by : Helmut Kiess
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.
Book Synopsis Design, Synthesis, and Application of Novel π-Conjugated Materials by : Haichang Zhang
Download or read book Design, Synthesis, and Application of Novel π-Conjugated Materials written by Haichang Zhang and published by Frontiers Media SA. This book was released on 2021-02-11 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Conjugated Polymers for Next-Generation Applications, Volume 2 by : Vijay Kumar
Download or read book Conjugated Polymers for Next-Generation Applications, Volume 2 written by Vijay Kumar and published by Woodhead Publishing. This book was released on 2022-06-23 with total page 443 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conjugated Polymers for Next-Generation Applications, Volume Two: Energy Storage Devices describes the synthesis and characterization of varied conjugated polymeric materials and their key applications, including active electrode materials for electrochemical capacitors and lithium-ion batteries, along with new ideas of functional materials for next-generation high-energy batteries, a discussion of common design procedures, and the pros and cons of conjugated polymers for certain applications. The book’s emphasis lies in the underlying electronic properties of conjugated polymers, their characterization and analysis, and the evaluation of their effectiveness for utilization in energy and electronics applications. This book is ideal for researchers and practitioners in the area of materials science, chemistry and chemical engineering. Provides an overview of the synthesis and functionalization of conjugated polymers and their composites Reviews important photovoltaics applications of conjugated polymeric materials, including their use in energy storage, batteries and optoelectronic devices Discusses conjugated polymers and their application in electronics for sensing, bioelectronics, memory, and more
Book Synopsis Synthesis of Novel Conjugated Polymers with High Electron Affinities for Application in Electronic Devices by : Julien E. Gautrot
Download or read book Synthesis of Novel Conjugated Polymers with High Electron Affinities for Application in Electronic Devices written by Julien E. Gautrot and published by . This book was released on 2004 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Conjugated Polymers for Organic Electronics by : Andrew Grimsdale
Download or read book Conjugated Polymers for Organic Electronics written by Andrew Grimsdale and published by Cambridge University Press. This book was released on 2024-04-04 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focusing on how conjugated polymers can be designed and made for use in efficient organic electronic devices, this book covers the tools for future development of more environmentally and economically friendly devices. Including examples of interdisciplinary science, it exemplifies how chemists and physicists work together to enable the design and synthesis of high-performance material in devices, allowing polymer-based electronic devices to become viable commercial products. It provides the main classes of conjugated polymers and their applications in organic electronic devices such as transistors, light-emitting diodes, and solar cells, making this a comprehensive introduction. This complete guide includes the methods for making conjugated polymers, the properties and specific structures that make them suitable for use, and how their synthesis can be optimised to improve device performance. Written by experts in the field, this is the ideal guide for researchers and practitioners across materials science, physics, chemistry, and electrical engineering.
Book Synopsis Conjugated Polymer Nanostructures for Energy Conversion and Storage Applications by : Srabanti Ghosh
Download or read book Conjugated Polymer Nanostructures for Energy Conversion and Storage Applications written by Srabanti Ghosh and published by John Wiley & Sons. This book was released on 2021-06-01 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: A timely overview of fundamental and advanced topics of conjugated polymer nanostructures Conjugated Polymer Nanostructures for Energy Conversion and Storage Applications is a comprehensive reference on conjugated polymers for energy applications. Distinguished academic and editor Srabanti Ghosh offers readers a broad overview of the synthesis, characterization, and energy-related applications of nanostructures based on conjugated polymers. The book includes novel approaches and presents an interdisciplinary perspective rooted in the interfacing of polymer and synthetic chemistry, materials science, organic chemistry, and analytical chemistry. This book provides complete descriptions of conjugated polymer nanostructures and polymer-based hybrid materials for energy conversion, water splitting, and the degradation of organic pollutants. Photovoltaics, solar cells, and energy storage devices such as supercapacitors, lithium ion battery electrodes, and their associated technologies are discussed, as well. Conjugated Polymer Nanostructures for Energy Conversion and Storage Applications covers both the fundamental topics and the most recent advances in this rapidly developing area, including: The design and characterization of conjugated polymer nanostructures, including the template-free and chemical synthesis of polymer nanostructures Conjugated polymer nanostructures for solar energy conversion and environmental protection, including the use of conjugated polymer-based nanocomposites as photocatalysts Conjugated polymer nanostructures for energy storage, including the use of nanocomposites as electrode materials The presentation of different and novel methods of utilizing conjugated polymer nanostructures for energy applications Perfect for materials scientists, polymer chemists, and physical chemists, Conjugated Polymer Nanostructures for Energy Conversion and Storage Applications also belongs on the bookshelves of organic chemists and any other practicing researchers, academics, or professionals whose work touches on these highly versatile and useful structures.
Book Synopsis Polymers in Telecommunication Devices by : G. H. Cross
Download or read book Polymers in Telecommunication Devices written by G. H. Cross and published by iSmithers Rapra Publishing. This book was released on 2002 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report discusses the use of the use of polymers instead of and in conjunction with, traditional platforms such as indium phosphide and ferroelectric ceramic lithium niobate. Critical comparisons are made between use of polymers and alternative. This review report gives an overview of all the elements of optical transmission and switching systems that are used in telecommunications and is a fully interdisciplinary account of materials and device design issues. An additional indexed section containing several hundred abstracts from the Rapra Polymer Library database gives useful references for further reading.
Book Synopsis Polymers for Light-emitting Devices and Displays by : Inamuddin
Download or read book Polymers for Light-emitting Devices and Displays written by Inamuddin and published by John Wiley & Sons. This book was released on 2020-05-27 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymers for Light-Emitting Devices and Displays provides an in-depth overview of fabrication methods and unique properties of polymeric semiconductors, and their potential applications for LEDs including organic electronics, displays, and optoelectronics. Some of the chapter subjects include: • The newest polymeric materials and processes beyond the classical structure of PLED • Conjugated polymers and their application in the light-emitting diodes (OLEDs & PLEDs) as optoelectronic devices. • The novel work carried out on electrospun nanofibers used for LEDs. • The roles of diversified architectures, layers, components, and their structural modifications in determining efficiencies and parameters of PLEDs as high-performance devices. • Polymer liquid crystal devices (PLCs), their synthesis, and applications in various liquid crystal devices (LCs) and displays. • Reviews the state-of-art of materials and technologies to manufacture hybrid white light-emitting diodes based on inorganic light sources and organic wavelength converters.
Book Synopsis Semiconducting Polymers by : Raquel Aparecida Domingues
Download or read book Semiconducting Polymers written by Raquel Aparecida Domingues and published by CRC Press. This book was released on 2021-06-25 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiconducting polymers are of great interest for applications in electroluminescent devices, solar cells, batteries, and diodes. This volume provides a thorough introduction to the basic concepts of the photophysics of semiconducting polymers as well as a description of the principal polymerization methods for luminescent polymers. Divided into two main sections, the book first introduces the advances made in polymer synthesis and then goes on to focus on the photophysics aspects, also exploring how new advances in the area of controlled syntheses of semiconducting polymers are applied. An understanding of the photophysics process in this kind of material requires some knowledge of many different terms in this field, so a chapter on the basic concepts is included. The process that occurs in semiconducting polymers spans time scales that are unimaginably fast, sometimes less than a picosecond. To appreciate this extraordinary scale, it is necessary to learn a range of vocabularies and concepts that stretch from the basic concepts of photophysics to modern applications, such as electroluminescent devices, solar cells, batteries, and diodes. This book provides a starting point for a broadly based understanding of photophysics concepts applied in understanding semiconducting polymers, incorporating critical ideas from across the scientific spectrum.
Book Synopsis Synthesis of Conjugated Polymers from Xanthene and Alkenyl Flanked Diketopyrrolopyrrole Monomers for High-performance Electronic Applications by : Ranganath Wijesinghe Wahalathantrige Don
Download or read book Synthesis of Conjugated Polymers from Xanthene and Alkenyl Flanked Diketopyrrolopyrrole Monomers for High-performance Electronic Applications written by Ranganath Wijesinghe Wahalathantrige Don and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In traditional electronics, inorganic materials such as silicon and germanium are used as semiconductors due to their outstanding semiconducting properties. Unfortunately, inorganic materials are rigid due to their high crystalline nature, and processing these materials is complex and expensive. Furthermore, traditional semiconducting materials do not have favorable mechanical properties in applications such as wearable devices and large-area applications with complicated shapes. Conjugated conducting polymers (CCPs) are being explored as alternative materials to conventional semiconductors due to their mechanical properties and high conductivity. CCPs offer properties such as solution and low-temperature processability, flexibility, thermal and optical properties that traditional semiconductors could not provide. These characteristics are essential in Organic Light-Emitting Diodes (OLEDs), Organic Field-Effect Transistors (OFETs), and Photovoltaic (PVs) devices. This dissertation focuses on synthesizing rhodamine- and diketopyrrolopyrrole- containing CCPs. Chapter I focuses on the synthesis, and characterization of polyrhodamine (PRho), a semiconducting conjugated polymer containing the rhodamine core in the polymer’s backbone. PRho was synthesized by the Buchwald-Hartwig polycondensation and characterized for its optical and electrochemical properties. We have discovered that the polymer is electrochemically reversible and stable up to 1000 cycles as recorded by cyclic voltammetry between -0.4 and 1.0 V vs. Ag/AgCl and stable to extreme acidic and basic conditions without noticeable degradation. Remarkably, the polymer has a conductivity in the semiconductor range of 8.38 x 10−2 S cm−1 when treated with 20% HCl. Chapter II focuses on the synthesis and characterization of four different alkenyl flanked diketopyrrolopyrrole (DPP) polymers ( PDPPVTV, PDPPVTT, PDPPV3T, and PDPPV4T) synthesized via Stille polycondensation. Different pi-conjugated segments (alkenyl/ PDPPVTV, thiophene/ PDPPVTT, thienothiophene/ PDPPV3T, and dithienothiophene/ PDPPV4T) were used to tune the optoelectrical properties of the polymers. The effect of the alkenyl groups and different pi-conjugated segments on the optoelectrical and charge mobility properties were determined by UV/visible spectroscopy, cyclic voltammetry, and FET characteristics. Three of the four polymers, except PPP4T, showed good solubility in chloroform. All the polymers showed high thermal stabilities in TGA and semi-crystalline nature in X-Ray diffraction patterns. PDPPVTV and PDPPVTT exhibited hole mobilities of 1.8 x 10−3 cm2 V−1 s−1 and 0.25 cm2 V−1 s−1, respectively. .
Book Synopsis Conjugated Polymers: Synthesis & Design by : Seth C. Rasmussen
Download or read book Conjugated Polymers: Synthesis & Design written by Seth C. Rasmussen and published by American Chemical Society. This book was released on 2023-12-01 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: This digital primer serves as an excellent introduction to conjugated polymers, particularly in terms of their synthesis and design. Chapters one and two introduce common terminology and fundamental concepts. Chapter three covers known structure–function relationships that can be used to design conjugated polymers with the desired properties for specific applications, concluding with a discussion of the additive and sometimes conflicting aspects of these design elements. Chapters four, five, and six cover the various methods used to synthesize these materials, beginning with the oldest and most simple approaches, and increasing in synthetic complexity. Advanced undergraduates, graduate students, and faculty wishing to enter this field for the first time should find this primer beneficial. At the same time, however, we have pointed out various misconceptions still commonly found in the literature, which should be valuable to those already familiar with these materials.
Book Synopsis Electronic Materials: The Oligomer Approach by : Klaus Müllen
Download or read book Electronic Materials: The Oligomer Approach written by Klaus Müllen and published by John Wiley & Sons. This book was released on 2008-11-20 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electroactive oligomers form an important class of advanced materials for the development of new devices such as thin-film, flexible batteries; semiconductors; large-area optical displays; and sensors. In addition, the study of oligomeric model compounds is an essential prerequisite for understanding and developing polymers for electronics and optoelectronics applications. Written and edited by leading scientists in the field, this applications-oriented handbook represents the first comprehensive, systematic study of electroactive oligomeric materials. Special emphasis is placed on a critical review of the literature; relevant materials and technical data are collected in tables throughout. Includes - materials synthesis - structure--property relationship as a function of chain-length - applications in optics and electronics - oligomers as models for polymers - the role of oligomers in tomorrow's technology? Electronic Materials - The Oligomer Approach offers a stimulating combination of basic concepts and practical applications. It is sure to become a standard reference source that no-one working in the field can do without.
