Download or read book Synthesis of Fused Ring Thiophenes for the Use in Electronic Devices written by Sarah M. Peak and published by . This book was released on 2010 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent advances in synthetic and materials chemistry have led to the incorporation of organic conducting materials into various next generation electronic devices. In many applications, organics can act as the semiconducting material in place of more traditional components. Real-world, molecular based devices which incorporate organic semiconductors include Organic Light Emitting Diodes (OLEDs), Organic Photovolatic (OPV) cells, and Field-Effect Transistors (FETs). Organic electronic materials possess several advantages over traditional semiconductors (e.g., silcon), including lower cost of production, enhanced processibility, and the ability to function on flexible substrates (so called "plastic electronics"). Aromatic heterocycles, in particular thiophenes, represent an intriguing class of organic semiconductors due to their synthetic versatility and environmental stability. However, continued exploration into the formation of these novel materials is required before thiophene-based electronics become commercially feasible. This paper will focus on the role of thiophenes in electronic devices, previous research on thiophene-based electronic materials, and several synthetic pathways for the formation of thiophene derivatives. These transformations will start with a 2,5-disubstituted thiophene, 2,5-dimethylthiophene. Formation of various 5,5 and 5,6-fused thiophene rings was accomplished by first functionalizing at the 3- and 4- position, followed by ring closure with hydrazine hydrate, Lawesson's Reagent, and various fused ring thiophene derivatives incorporating a pyridazene, a thiophene, and reduced pyrrole into this 2,5-dimethylthiophene substrate. The overall goal of this research is to increase solubility, improve handling, increase conductivity, and have good synthetic versatility of these conducting materials so that each thiophene derivative has practical applications in next generation electronic devices.
Download or read book Handbook of Thiophene Based Materials written by Igor F. Perepichka and published by John Wiley & Sons. This book was released on 2009-07-17 with total page 910 pages. Available in PDF, EPUB and Kindle. Book excerpt: This essential resource consists of a series of critical reviews written by leading scientists, summarising the progress in the field of conjugated thiophene materials. It is an application-oriented book, giving a chemists’ point of view on the state-of-art and perspectives of the field. While presenting a comprehensive coverage of thiophene-based materials and related applications, the aim is to show how the rational molecular design of materials can bring a new breadth to known device applications or even aid the development of novel application concepts. The main topics covered include synthetic methodologies to thiophene-based materials (including the chemistry of thiophene, preparation of oligomers and polymerisation approaches) and the structure and physical properties of oligo- and polythiophenes (discussion of structural effects on electronic and optical properties). Part of the book is devoted to the optical and semiconducting properties of conjugated thiophene materials for electronics and photonics, and the role of thiophene-based materials in nanotechnology.
Download or read book Fontana de vita e fonte de verace conforto per li angusti e tribolati cuori written by and published by . This book was released on 1583 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comprehensive Organic Chemistry Experiments for the Laboratory Classroom written by Carlos A M Afonso and published by Royal Society of Chemistry. This book was released on 2020-08-28 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt: This expansive and practical textbook contains organic chemistry experiments for teaching in the laboratory at the undergraduate level covering a range of functional group transformations and key organic reactions.The editorial team have collected contributions from around the world and standardized them for publication. Each experiment will explore a modern chemistry scenario, such as: sustainable chemistry; application in the pharmaceutical industry; catalysis and material sciences, to name a few. All the experiments will be complemented with a set of questions to challenge the students and a section for the instructors, concerning the results obtained and advice on getting the best outcome from the experiment. A section covering practical aspects with tips and advice for the instructors, together with the results obtained in the laboratory by students, has been compiled for each experiment. Targeted at professors and lecturers in chemistry, this useful text will provide up to date experiments putting the science into context for the students.
Download or read book The Synthesis and Reactions of Some Ring fused Non classical Condensed Thiophenes written by Stanley J. Jr Zurawel and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Extended Orthogonally Fused Conducting Oligomers for Molecular Electronic Devices written by and published by . This book was released on 1992 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Described is an approach to orthogonally fused conjugated organic compounds that may act as molecular switching devices. Four thiophene trimers are added in a single operation to spiro-fused cores to afford the target molecules. A spiro-fused thiophene-based monomer system is converted to a spiro- fused heptamer that is 25 A long. The synthesis of a mixed phenylene-thiophene system is described that provides a spiro-fused octamer that is 30 long. In each case, alkyl substituents on the thiophenes afford soluble materials. Trimethylsilyl end groups flank each orthogonally fused system. Organophalladium- and organonickel-catalyzed procedures are used extensively for the synthesis of the orthogonally fused compounds.
Download or read book Design and Synthesis of Conjugated Polymers written by Mario Leclerc and published by John Wiley & Sons. This book was released on 2010-06-24 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt: This first systematic compilation of synthesis methods for different classes of polymers describes well-tested and reproducible procedures, thus saving time, money and chemicals. Each chapter presents the latest method for a specific class of conjugated polymers with a particular emphasis on the design aspects for organo-electronic applications. In this concise and practically oriented manner, readers are introduced to the strategies of influencing and controlling the polymer properties with respect to their use in the desired device. This style of presentation quickly helps researchers in their daily lab work and prevents them from reinventing the wheel over and over again.
Download or read book Progress in Heterocyclic Chemistry written by Gordon Gribble and published by Elsevier. This book was released on 2010-10-01 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress in Heterocyclic Chemistry (PHC) is an annual review series commissioned by the International Society of Heterocyclic Chemistry (ISHC). Volumes in the series contain both highlights of the previous year’s literature on heterocyclic chemistry and articles on emerging topics of particular interest to heterocyclic chemists. The chapters in Volume 22 constitute a systematic survey of the important original material reported in the literature of heterocyclic chemistry in 2009. * Covers the heterocyclic literature published in 2009 * Includes specialized reviews * Features contributions from leading researchers in their fields
Download or read book Large Area and Flexible Electronics written by Mario Caironi and published by John Wiley & Sons. This book was released on 2015-05-04 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: From materials to applications, this ready reference covers the entire value chain from fundamentals via processing right up to devices, presenting different approaches to large-area electronics, thus enabling readers to compare materials, properties and performance. Divided into two parts, the first focuses on the materials used for the electronic functionality, covering organic and inorganic semiconductors, including vacuum and solution-processed metal-oxide semiconductors, nanomembranes and nanocrystals, as well as conductors and insulators. The second part reviews the devices and applications of large-area electronics, including flexible and ultra-high-resolution displays, light-emitting transistors, organic and inorganic photovoltaics, large-area imagers and sensors, non-volatile memories and radio-frequency identification tags. With its academic and industrial viewpoints, this volume provides in-depth knowledge for experienced researchers while also serving as a first-stop resource for those entering the field.
Download or read book Flexible Carbon based Electronics written by Paolo Samorì and published by John Wiley & Sons. This book was released on 2019-02-11 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: This third volume in the Advanced Nanocarbon Materials series covers the topic of flexible electronics both from a materials and an applications perspective. Comprehensive in its scope, the monograph examines organic, inorganic and composite materials with a section devoted to carbon-based materials with a special focus on the generation and properties of 2D materials. It also presents carbon modifications and derivatives, such as carbon nanotubes, graphene oxide and diamonds. In terms of the topical applications covered these include, but are not limited to, flexible displays, organic electronics, transistors, integrated circuits, semiconductors and solar cells. These offer perspectives for today?s energy and healthcare challenges, such as electrochemical energy storage and wearable devices. Finally, a section on fundamental properties and characterization approaches of flexible electronics rounds off the book. Each contribution points out the importance of the structure-function relationship for the target-oriented fabrication of electronic devices, enabling the design of complex components.
Download or read book Handbook of thiophene based materials applications in organic electronics and photonics 2 Properties and applications written by Igor F. Perepichka and published by . This book was released on 2009 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fused ring Poly and Oligothiophenes Designed Electronic Materials written by Xinnan Zhang and published by . This book was released on 2006 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thiophene-based conjugated materials have received much attention as a novel class of organic semiconducting materials due to their excellent electronic and optical properties. To determine the influence of planarization on the properties of these conjugated molecules, a series of fused-ring poly- and oligothiophenes were designed and synthesized. Their properties, including electronic/electrochemical properties and solid-state packing, were studied and compared to the non-fused analogs.
Download or read book Synthesis of Thiophene Oligomers for Electronic Applications written by Ruilan Wu and published by . This book was released on 1992 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sulfur Containing Polymers written by Xing-Hong Zhang and published by John Wiley & Sons. This book was released on 2021-03-16 with total page 480 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.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis of Functionalized Thiophene Based Materials written by Dushanthi Shamila Dissanayake and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Functionalized thiophene based materials are promising candidates in many organic electronic applications such as organic field effect transistors, photovoltaic devices, organic light emitting diodes and sensors. Low temperature deposition and solution processing make these materials particularly interesting as their fabrication processes are much less complex than conventional silicon technology. Furthermore, the mechanical flexibility of organic materials makes them well-suited for plastic substrates in light weight and flexible products. Incorporation of different functional moieties can alter the optoelectronic properties of these materials. Attaching stimuli responsive compounds make these materials responsive towards the particular stimulus, and electron donating and withdrawing moieties can be used to tune the HOMO and LUMO energy levels. Spiropyrans are photochromic compounds which shows large structural variation upon absorption of light, and developing new synthetic methodologies to incorporate these units into thiophene based materials via a conjugated pathway is crucial in order to study the effect of photochromism on optoelectronic properties of a conjugated material. Functionalization of thiophene based materials with alkoxy substituents raise the HOMO level of the materials and thus lower the band gap. Application of alkoxy substituted polythiophene on organic electronic devices can demonstrate how charge transportation of the material is affected by the substituent. Chapter 1 discusses the thiophene based conjugated materials and their electronic properties including band structure, conductivity and charge transport mechanism. The operation mechanism of organic field effect transistors and effect of functionalization of thiophene based materials with photochromic spiropyrans and alkoxy groups with respect to organic electronic applications is discussed. Chapter 2 demonstrates development of synthetic methodologies to incorporate photochromic spiropyran as a backbone unit into thiophene based polymers via a conjugated pathway. Chapter 3 illustrates a new synthetic method to incorporate photochromic spiropyran substituents as pendent groups to thiophene repeat units through a conjugated pathway. Chapter 4 discusses the synthesis of triethylene glycol monomethyl ether substituted polythiophene, optoelectronic properties and the charge carrier mobility with field-effect transistors and in Schottky diode. It also describes the applicability of doped polymer as an alternative to commercially available PEDOT: PSS.
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.
