Download or read book Design Synthesis and Functionalization of Organic pi conjugated Donor acceptor Chromophores written by 姚子希 and published by . This book was released on 2019 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design Synthesis and Functionalization of Spiro annulated and Boron containing pi conjugated Donor acceptor Molecules and Their Application Studies in Organic Electronics written by 李盼盼 and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design and Synthesis of Organic and Organometallic pi conjugated Donor acceptor Chromophores written by 陳展耀 and published by . This book was released on 2015 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design Synthesis and Application of Novel 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:
Download or read book Design Synthesis and Functionalization of Organic and Metal containing pi conjugated Push pull Chromophores written by 陳興 and published by . This book was released on 2016 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design Synthesis and Application of Novel 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:
Download or read book Design and Synthesis of Phosphole containing Donor acceptor Chromophores and Their Gold I Complexes written by 鄭逸軒 and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conjugated Objects written by Atsushi Nagai and published by CRC Press. This book was released on 2017-09-01 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conjugated Objects: Development, Synthesis, and Application contains 17 chapters written by young researchers and contains current trends in pi-conjugated systems for application in broad research areas such as design of unique pi-conjugation, catalysts, self-assembly, charge transfer complexes, liquid crystals, supramolecules, and nanostructures by using conjugated small and/or macro-objects organically or electrochemically. The book can be used as a textbook of basic learning by undergraduate and graduate students of chemistry, electrical and electronics engineering, and materials science and by supramolecular researchers in nanotechnology and biotechnology.
Download or read book Design and Synthesis of conjugated Polymers for Organic Optoelectronics written by 陳宏揚 and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design and Synthesis of Organic Chromophores for Imaging Lithography and Organic Electronics written by Trisha Lionel Andrew and published by . This book was released on 2011 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: The absorption and emission maxima, photostabilities and photoreactivities of small-molecule organic chromophores can be tailored by (a) the choice of an appropriate parent structure and (b) the deliberate introduction of substituents that predictably alter the optical properties and photochemistry of this parent structure. Suitably-designed chromophores can be used in a variety of applications, such as imaging (for example, as fluorescent labeling agents or as indicators for specific analytes), optical lithography and as active components in organic electronic devices. In Chapter 1, a fluorogenic chemosensor to detect saturated nitramine and nitrate ester explosives was devised based on a photochemical reduction reaction. 10-Methyl-9,10- dihydroacridine (AcrH2) was found to transfer a hydride ion equivalent to the high explosives RDX and PETN upon irradiation at 313 nm in degassed acetonitrile solutions. Mechanistic photophysical studies indicated that the photoreduction of RDX proceeded via a two-step electron-hydrogen atom transfer reaction, whereas PETN photoreduction proceeded via a threestep electron-proton-electron transfer sequence. A zinc analog was synthesized and found to display an 80- or 25-fold increase in 480 nm emission intensity upon reaction with RDX or PETN, respectively; moreover, the Zn analog was found to be unresponsive to TNT and other common contaminants, in addition to being photostable under ambient conditions. In Chapter 2, the nitramine-containing explosive RDX and the nitroester-containing explosive PETN were shown to be susceptible to photodegradation upon exposure to sunlight. The products of this photodegradation were identified as reactive, electrophilic NOx species, such as nitrous and nitric acid, nitric oxide, and nitrogen dioxide. NN-Dimethylaniline was capable of being nitrated by the reactive, electrophilic NOx photodegradation products of RDX and PETN. A series of 9,9-disubstituted 9,10-dihydroacridines (DHAs) were synthesized from either N-phenylanthranilic acid methyl ester or a diphenylamine derivative and were similarly shown to be rapidly nitrated by the photodegradation products of RDX and PETN. An increase in the emission signal at 550 nm was observed upon nitration of DHAs due to the generation of fluorescent donor-acceptor chromophores. Using fluorescence spectroscopy, the presence of ca. 1.2 ng of RDX and 320 pg of PETN could be detected by DHA indicators in the solid state upon exposure to sunlight. In Chapter 3, optical lithography with organic photochromes is demonstrated. In the past, the formation of microscale patterns in the far field by light has been diffractively limited in resolution to roughly half the wavelength of the radiation used. We demonstrated lines with an -4- average width of 36 nm, about one-tenth the illuminating wavelength ( 11 = 325 nm), made by applying a film of thermally-stable photochromic molecules above the photoresist. Simultaneous irradiation of a second wavelength (k= 633 nm) rendered the film opaque to the writing beam except at nodal sites, which let through a spatially constrained segment of incident 1 light, allowing subdiffractional patterning. In Chapter 4, rylene dyes functionalized with varying numbers of phenyl trifluorovinylether (TFVE) moieties were subjected to a thermal emulsion polymerization to yield shape-persistent, water-soluble chromophore nanoparticles. Perylene and terrylene diimide derivatives containing either two or four phenyl TFVE functional groups were synthesized and subjected to thermal emulsion polymerization in tetraglyme. Dynamic light scattering measurements indicated that particles with sizes ranging from 70 - 100 nm were obtained in tetraglyme, depending on monomer concentration. The photophysical properties of individual monomers were preserved in the nanoemulsions and emission colors could be tuned between yellow, orange, red, and deep red. The nanoparticles retained their shape upon dissolution into water and the resulting water suspensions displayed moderate to high fluorescence quantum yield, thus making them attractive candidates for bioimaging applications. In Chapter 5, a series of substituted 6,6-dicyanofulvenes (DCFs) were synthesized starting from masked, dimeric or monomeric cyclopentadienones. DCFs lacking sufficient steric bulk around the fulvene core tended to reversibly undergo a [4+2] dimerization. In addition to being highly crystalline, DCFs were darkly-colored compounds due to the presence of weak electronic transitions in the visible region of the electromagnetic spectrum. DCFs displayed two distinct, reversible one-electron reductions by cyclic voltammetry. Based on their high crystallinity and suitable electron affinities, and buoyed by their relatively cheap and straightforward synthesis, DCFs are interesting candidates for organic electron-transport materials.
Download or read book Organic Polymers written by Arpit Sand and published by BoD – Books on Demand. This book was released on 2020-03-11 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, Organic Polymers, covers aspects that are of immediate concern to a new entrant to the field of polymers. Taken as a whole, these eight chapters aim to help the readers easily assimilate other specialized and exhaustive treatises on the subject. Topics dealing with the chemistry and technology of polymers are presented in a careful and logical manner so as to provide an easy and enjoyable read. Several examples and analogies are included so to make the main concepts easy to follow and tables and figures are included so that the book can serve, to a limited extent, as a hand book dealing with polysaccharides with different parameters. This book is meant for students studying polysaccharides and those working on graft copolymers and other allied polymer industries but without a formal educational background in organic polymers.
Download or read book Design Synthesis and Evaluation of Organic Non linear Optical Chromophores with Configurationally and Conformationally Locked Polyene Bridges written by and published by . This book was released on 2002 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: A modular, synthetic scheme was developed for versatile variation of donors, acceptors and polyene bridge length of NLO-chromophores. Configurational- and conformational rigidity of the polyene bridges were realized by making each set of adjacent double and single bond pair part of a fused cylohexene ring. Substituent effects on the reactions leading to the establishment of the donor, elongation of the fused polyene bridge and the final introduction of the acceptor moiety were uncovered and used to control regioselectivity, chemo-selectivity and reactivity in the overall synthetic scheme.
Download or read book Design Synthesis and Optoelectronic Properties of Strongly Coupled Porphyrin Based Donor acceptor Systems written by Harry Tetsuo Uyeda and published by . This book was released on 2002 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of Chromophore Functionalized Conjugated Polymers written by Biwang Jiang and published by . This book was released on 1998 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Encyclopedia of Color Science and Technology written by Renzo Shamey and published by Springer Nature. This book was released on 2023-09-29 with total page 1634 pages. Available in PDF, EPUB and Kindle. Book excerpt: This fully revised and expanded 2nd edition provides a single authoritative resource describing the concepts of color and the application of color science across research and industry. Significant changes for the 2nd edition include: New and expanded sections on color engineering More entries on fundamental concepts of color science and color terms Many additional entries on specific materials Further material on optical concepts and human visual perception Additional articles on organisations, tools and systems relevant to color A new set of entries on 3D presentation of color In addition, many of the existing entries have been revised and updated to ensure that the content of the encyclopedia is current and represents the state of the art. The work covers the full gamut of color: the fundamentals of color science; the physics and chemistry; color as it relates to optical phenomena and the human visual system; and colorants and materials. The measurement of color is described through entries on colorimetry, color spaces, color difference metrics, color appearance models, color order systems and cognitive color. The encyclopedia also has extensive coverage of applications throughout industry, including color imaging, color capture, display and printing, and descriptions of color encodings, color management, processing color and applications relating to color synthesis for computer graphics are included. The broad scope of the work is illustrated through entries on color in art conservation, color and architecture, color and education, color and culture, and biographies of some of the key figures involved in color research throughout history. With over 250 entries from color science researchers across academia and industry, this expanded 2nd edition of the Encyclopedia of Color Science and Technology remains the most important single resource in color science.
Download or read book Rational Design and Synthesis of Sequence Defined Donor Acceptor Poly arylenevinylene s as Singlet Fission Materials written by Stephen Koehler and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Donor-Acceptor poly(p-arylenevinylenes) (DA PAVs) are an untapped class of materials owing largely to their challenging synthesis. The Elacqua group recently reported the synthesis of such polymers by Ring-Opening Metathesis Polymerization (ROMP). The newly synthesized monomer polymerized with good control over molecular weight and was able to form block copolymers with poly(norbornene). In Chapter 2, the inherent steric and electronic bias of ROMP is leveraged within the same monomer scaffold to study how to monitor and influence polymer sequence. A combination of monomer steric bulk, reaction solvent, and temperature are all variables that can influence the sequence. While further study is needed, non-symmetric substitution of alkyl chains appears to be important in achieving controlled polymerizations. This comes with many limitations, namely a challenging monomer synthesis, for which we provide some perspective and insight to overcome this deficit. Given the remaining synthetic challenges, computational chemistry will be a particularly powerful tool to deliberately identify synthetic targets. Simulating polymer properties is a difficult task in itself; in Chapter 3, a high throughput screening method which is both more accurate and an order of magnitude faster than leading quantum mechanical methods was developed. Preliminary data supports a size-parameter relationship between monomers, which could be leveraged to further enhance the accuracy, and potentially used in simulating higher-dimensional conjugated structures like covalent organic frameworks. Circling back to screening-driven polymer design, Chapter 4 presents time-dependent density functional theory calculations that identify DA PAVs as a promising class of materials for singlet fission. This is due, in part to the planarization afforded by the vinyl-spacer. This is observed both when replicating reported methods, as well as when applying the high throughput screening capabilities developed in Chapter 3. Chapter 5 looks toward multifunctional devices or stimuli responsive organic electronics, wherein the synthesis of thiophene-appended spiropyran oligomers which can reversibly change their band gap energy are presented. The observed band gap energies agree well with DFT calculations, suggesting more diverse spiropyran-oligomers could be explored. However, fast isomerization with oligomer-appended spiropyran was not observed, though it is hypothesized that spirothiopyran could be an effective tool to overcome this. Overall, this work demonstrates progress in both synthetic and computational methodology to advance the development and discovery of organic electronic materials.
Download or read book Solution Processable Components for Organic Electronic Devices written by Beata Luszczynska and published by John Wiley & Sons. This book was released on 2019-09-16 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides first-hand insights into advanced fabrication techniques for solution processable organic electronics materials and devices The field of printable organic electronics has emerged as a technology which plays a major role in materials science research and development. Printable organic electronics soon compete with, and for specific applications can even outpace, conventional semiconductor devices in terms of performance, cost, and versatility. Printing techniques allow for large-scale fabrication of organic electronic components and functional devices for use as wearable electronics, health-care sensors, Internet of Things, monitoring of environment pollution and many others, yet-to-be-conceived applications. The first part of Solution-Processable Components for Organic Electronic Devices covers the synthesis of: soluble conjugated polymers; solution-processable nanoparticles of inorganic semiconductors; high-k nanoparticles by means of controlled radical polymerization; advanced blending techniques yielding novel materials with extraordinary properties. The book also discusses photogeneration of charge carriers in nanostructured bulk heterojunctions and charge carrier transport in multicomponent materials such as composites and nanocomposites as well as photovoltaic devices modelling. The second part of the book is devoted to organic electronic devices, such as field effect transistors, light emitting diodes, photovoltaics, photodiodes and electronic memory devices which can be produced by solution-based methods, including printing and roll-to-roll manufacturing. The book provides in-depth knowledge for experienced researchers and for those entering the field. It comprises 12 chapters focused on: ? novel organic electronics components synthesis and solution-based processing techniques ? advanced analysis of mechanisms governing charge carrier generation and transport in organic semiconductors and devices ? fabrication techniques and characterization methods of organic electronic devices Providing coverage of the state of the art of organic electronics, Solution-Processable Components for Organic Electronic Devices is an excellent book for materials scientists, applied physicists, engineering scientists, and those working in the electronics industry.
