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Book Synthesis and Testing of New Dyes for Dye sensitized Solar Cells

Download or read book Synthesis and Testing of New Dyes for Dye sensitized Solar Cells written by Moneer Kadhm Mohsen and published by . This book was released on 2013 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Dye Sensitized Solar Cells

Download or read book Dye Sensitized Solar Cells written by Masoud Soroush and published by Academic Press. This book was released on 2019-03-01 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dye-Sensitized Solar Cells: Mathematical Modelling and Materials Design and Optimization presents the latest information as edited from leaders in the field. It covers advances in DSSC design, fabrication and mathematical modelling and optimization, providing a comprehensive coverage of various DSSC advances that includes different system scales, from electronic to macroscopic level, and a consolidation of the results with fundamentals. The book is extremely useful as a monograph for graduate students and researchers, but is also a comprehensive, general reference on state-of-the-art techniques in modelling, optimization and design of DSSCs.

Book Nanostructured and Photoelectrochemical Systems for Solar Photon Conversion

Download or read book Nanostructured and Photoelectrochemical Systems for Solar Photon Conversion written by Mary D. Archer and published by World Scientific. This book was released on 2008 with total page 781 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, expert authors describe advanced solar photon conversion approaches that promise highly efficient photovoltaic and photoelectrochemical cells with sophisticated architectures on the one hand, and plastic photovoltaic coatings that are inexpensive enough to be disposable on the other. Their leitmotifs include light-induced exciton generation, junction architectures that lead to efficient exciton dissociation, and charge collection by percolation through mesoscale phases. Photocatalysis is closely related to photoelectrochemistry, and the fundamentals of both disciplines are covered in this volume.

Book The Synthesis of Solar Cell Dyes

Download or read book The Synthesis of Solar Cell Dyes written by Yasmeen Abdullah Hameed and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Metal Free Synthetic Organic Dyes

Download or read book Metal Free Synthetic Organic Dyes written by Ghodsi Mohammadi Ziarani and published by Elsevier. This book was released on 2018-07-25 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal- Free Synthetic Organic Dyes is a comprehensive guide to the synthetic, organic dyes that are classified by their chemical structure. As synthetic dyes are playing an increasingly important role in modern life, with applications in both industry and scientific research, this book provides insights on the many research attempts that have been made to explore new photosensitizers in the development of dye sensitized solar cells (DSCs). These novel photosensitizers have incorporated, within their structure, different organic groups, such as coumarins, cyanines, hemicyanines, indolines, triphenylamines, bis(dimethylfluorenyl) aminophenyls, phenothiazines, tetrahydroquinolines, carbazoles, polyenes, fluorenes, and many others. This comprehensive resource contains color figures and schemes for each dye discussed, and is an invaluable resource for organic, inorganic and analytical chemists working in academia and industry. Features a discussion of the synthesis of the new, high-value synthetic dyes and pigments and their applications and performance Includes coverage of new photosensitizers and their role in the development of dye sensitized solar cells (DSCs) Covers synthesis of the functional dyes that are ideal for applications in the dye and pigment industry, textiles, color science, solar energy materials and solar cells, biomedical sensors, advanced materials, structure and synthesis of materials, and more

Book Synthesis of Azo Dyes for Use in Dye sensitized Solar Cells

Download or read book Synthesis of Azo Dyes for Use in Dye sensitized Solar Cells written by Marsha Grimminger and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: With the increase in fossil fuel costs and the limitability of readily available reserves, the need for research in renewable energy sources is crucial. Organic solar cells can be a convenient and low-cost approach to harvesting solar energy using readily available and often recyclable materials. Traditional silicon solar cells have shown high reliability, but installation costs are prohibitive. Dye sensitized solar cells (DSSCs) are a promising alternative at a fraction of the cost. DSSCs use dyes with high quantum efficiency adsorbed on a titanium dioxide film to absorb light and transfer electrons. The dye is regenerated by a counter electrode and electrolyte, improving device stability. Our group has been exploring inexpensive, soluble, light stable azo dyes used in the textile industry for light absorption. Our goal is to generate solution processable DSSCs which can be spray painted directly on a roof or large area surface. By making device fabrication inexpensive, we decrease the need for high power conversion efficiency (PCE). Traditional silicon cells have a PCE around 13% which has been matched by DSSCs with carefully designed dyes. The synthesis, electronics, and solar cell device characteristics of several azo dyes will be presented.

Book Design and Synthesis of Novel Perylenemonoimide Dyes for Solar Energy Conversion

Download or read book Design and Synthesis of Novel Perylenemonoimide Dyes for Solar Energy Conversion written by Allison Elizabeth Curtze and published by . This book was released on 2020 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: While the protection offered by BH dyes affords photocathodes with long-term stability and high photocurrents in low pH aqueous conditions, p-DSPEC devices sensitized with BH4 have achieved less than ideal faradaic efficiencies attributed to catalyst decomposition. Thus, another new dye, cat-i, was designed and synthesized, featuring a pyridine moiety, which gives rise to the formation of a stable dye-catalyst supramolecule via axial coordination of the dye to the Co center of a well-known water reduction catalyst, Co(dmgBF2)2. Further, this dye-catalyst complexation could facilitate electron transfer from the photoexcited dye to the cobaloxime catalyst. When used as a sensitizer in a p-DSPEC device, the cat-i-cobaloxime complex exhibits significantly higher photocurrents than cat-i alone and produces H2 with 87% Faradaic efficiency.

Book Synthesis of Novel Chalcogenopyrylium Dyes for Dye sensitised Solar Cells

Download or read book Synthesis of Novel Chalcogenopyrylium Dyes for Dye sensitised Solar Cells written by Chi Wing Szeto and published by . This book was released on 2015 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt: Novel chalcogenopyrylium dyes for dye-sensitized solar cells were synthesized, including monomethine dyes with different chalcogenopyrylium cores, dyes with phosphonate or symmetrical carboxylic acid anchoring groups, and dyes with electron-donating triphenylamine and N, N-dimethylphenylamine moieties. The synthetic strategy for chalcogenopyrylium dyes is to generate the key chalcogenopyranone intermediate initially, followed by condensation with 4-methylpyrylium dyes. The reactive anchoring carboxylic acid group was protected in the synthesis by an ethyl ester and the deprotection method of these dyes is developed in this thesis.

Book Design and Synthesis of Organic Dyes for Solar Energy Conversion and Storage

Download or read book Design and Synthesis of Organic Dyes for Solar Energy Conversion and Storage written by Kevin A. Click and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Chapter 3 exploits the unique highly hydrophobic and large light absorption properties of the BH4 dye to answer the stability and wettability issues faced in solar driven water splitting applications. The unprecedented stability of the BH4 dye on NiO allowed the first use of low pH electrolytes to be used in p-type water splitting DSPECs. The ability to use acidic electrolytes likewise allowed the use of an acidically soluble and active earth abundant [Mo3S4]4+ homogeneous catalyst for the first time. Chapter 4 further utilizes the aqueous stability of the BH series dyes for aqueous based DSSCs. Utilizing water as the electrolyte solvent makes the already cost effective tandem DSSCs even more economical and environmentally friendly. The BH2 dye was used to fabricate entirely aqueous p-type DSSCs using the iodide/triiodide redox for the first time. The BH2 dye displayed aqueous p-type DSSC photocurrents greater than most non-aqueous p-type DSSCs and were stable for up to 4 months with no sign of photocathode degradation. Furthermore, aqueous tandem DSSC were fabricated with a completely aqueous electrolyte with all earth abundant materials with no use of any precious metals. Chapter 5 introduces a new dye (KC2) designed specifically for aqueous based dye sensitized electrodes. From what was learned in Chapters 2 – 4, there exists a dilemma between aqueous dye stability and wettability in the form of hydrophobicity. A novel layered amphiphilic structure is proposed to balance both the aqueous stability and wettability of dye sensitized films. The new amphiphilic KC2 dye was synthesized and fully characterized. It was compared to its purely hydrophobic analog (BH2) in all aspects including electrochemical, photo-physical and device performance properties. The KC2 dye doubles the aqueous wettability of sensitized NiO films and displays excellent stability identical to that of the hydrophobic BH2 dye. Finally from what was discovered from the KC2 dye, a new amphiphilic structure is proposed for further exploration. Chapter 6 summarizes the common experimental procedures and details used throughout the dissertation. More specific procedures relevant to each chapter are discussed in each corresponding chapter introduction.

Book Coumarin and Its Derivatives

Download or read book Coumarin and Its Derivatives written by Maria João Matos and published by Mdpi AG. This book was released on 2021-12-29 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coumarins are widely distributed in nature and can be found in a large number of naturally occurring and synthetic bioactive molecules. The unique and versatile oxygen-containing heterocyclic structure makes them a privileged scaffold in Medicinal Chemistry. Many coumarin derivatives have been extracted from natural sources, designed, synthetized, and evaluated on different pharmacological targets. In addition, coumarin-based ion receptors, fluorescent probes, and biological stains are growing quickly and have extensive applications to monitor timely enzyme activity, complex biological events, as well as accurate pharmacological and pharmacokinetic properties in living cells. The extraction, synthesis, and biological evaluation of coumarins have become extremely attractive and rapidly developing topics. A large number of research and review papers have compiled information on this important family of compounds in 2020. Research articles, reviews, communications, and concept papers focused on the multidisciplinary profile of coumarins, highlighting natural sources, most recent synthetic pathways, along with the main biological applications and theoretical studies, were the main focus of this book. The huge and growing range of applications of coumarins described in this book is a demonstration of the potential of this family of compounds in Organic Chemistry, Medicinal Chemistry, and different sciences related to the study of natural products. This book includes 23 articles: 17 original papers and six review papers.

Book Advances in Cross Coupling Reactions

Download or read book Advances in Cross Coupling Reactions written by José Pérez Sestelo and published by MDPI. This book was released on 2020-12-03 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this Special Issue, recent advances in cross-coupling reactions are presented in the form of original research articles, reviews, and short communications. These contributions cover different topics in this area, including novel coupling reactions, reaction conditions, synthetic alternatives, metal ligands, and applications for new pharmaceutical compounds and organic materials. In particular, the reviews deal with methodologies such as the synthesis of diarylketones through palladium catalysis and the most relevant examples of Suzuki–Miyaura and Buchwald–Hartwig coupling reactions in the synthesis of bioactive compounds. The synthetic utility of cross-coupling reactions for the synthesis of medium-size rings and the utility of Stille and Suzuki coupling reactions for the synthesis of new molecular machines based on sterically hindered anthracenyl trypticenyl units are also summarized. The original research articles present the synthesis of 2-alkynylpyrrols by inverse Sonogashira coupling and the synthesis of indoles under oxidative dearomative cross-dehydrogenative conditions. The efficient combination of iridium-catalyzed C–H borylation of aryl halides with the Sonogashira coupling and a sequential iridium-catalyzed borylation of NH-free pyrroles followed by a Suzuki–Miyaura reaction are included. The synthesis of aryl propionic acids, a common structural motif in medicinal chemistry, and the synthesis of new organic dyes are also covered.

Book Synthesis and Spectroscopic Characterization of New Chalcone Derivatives for Potential Use in Dye Sensitized Solar Cells

Download or read book Synthesis and Spectroscopic Characterization of New Chalcone Derivatives for Potential Use in Dye Sensitized Solar Cells written by Ibrahim Nasser Al'Amri and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: