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Author :
Publisher :
ISBN 13 :
Total Pages : 118 pages
Book Rating : 4.:/5 (78 download)
Download or read book Synthesis of novel ruthenium sensitizers for dye-sensitized solar cells written by and published by . This book was released on 2008 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Supawiriya Saranarak
Publisher :
ISBN 13 :
Total Pages : 178 pages
Book Rating : 4.:/5 (15 download)
Download or read book Synthesis of Ruthenium Complexes as Sensitizers for Dye-sensitized Solar Cells written by Supawiriya Saranarak and published by . This book was released on 2011 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: Five ruthenium complexes, SS01-SS05, were synthesized. The physical and electronic properties were studied and the compounds were used as a critical part of a dye-sensitized solar cell. The complexes, which are dyes or photosensitizers, are used as mediator to convert light to electric power. In this study, one of the bipyridine ligand of the synthesized complexes was a derivative of 2,3-diphenylpyrazino[2,3-f][1,10]phenanthroline, which was to serve as the light-harvesting unit of the complexes. The SS01-SS05 bear different substituents at the para-position of the phenyl ring such as –H, –OMe, –NEt2, –Me, and –Br. The data obtained from 1H NMR and ATR-IR spectroscopy were used to identify the structure of the compounds. In studying electronic structure, cyclic voltammetry was used altogether with absorption spectra to calculate HOMO and LUMO electronic levels. Upon the study of photovoltaic characteristic of the cell staining with SS01-SS05, it was illustrated that the overall conversion efficiency of SS01-SS05 were 2.60, 3.04, 2.60, 2.50, and 1.06%, respectively, which were lower than the efficiency (5.07%) obtained from the cell staining with standard N719. These were the results from the lower current density of the cells staining with SS01-SS05, possibly due to poorer electron injection from SS01-SS05 onto the TiO2 surface, when compared to the standard N719.
Author : Ali Haidar Younes
Publisher :
ISBN 13 :
Total Pages : 124 pages
Book Rating : 4.:/5 (787 download)
Download or read book Synthesis of Ruthenium-based Dendrimers and Their Use in Dye Sensitized Solar Cells written by Ali Haidar Younes and published by . This book was released on 2007 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first generation (Ru3) and the second generation (Ru6) dendrimers have been synthesized and characterized by UV-Vis absorption and NMR spectroscopy. The per formance of the first and second generations dendrimers as charge transfer photo sensitizers in nanocrytalline TiO2 based solar cells was investigated. Under the illumination of 100 mW/cm2, using a Solaronix Iodolyte MPN-100 electrolyte cons isting of 0.05 M I2 [iodine], 0.1 M LiI, and 0.5 M 4-tertbutyl pyridine in 3-met hoxypropionitrile. The best photovoltaic performance has been obtained by the Ru 3 film yielding a short circuit current of 4.17 mA/cm2 and an open circuit volta ge of 626 mV and a fill factor of 0.51, corresponding to an overall conversion e fficiency of 1.34% that is approximately the double of the conversion efficienci es of that of the reference compound Ru1 (0.54%) and of the second generation de ndrimer Ru6 (0.56%). The particular efficiency of the first generation dendrimer, Ru3, was attributed to the better light-harvesting properties when the Ru3 dye is doped on the nanocrysatlline TiO2 surface when compared to the reference com pound, Ru1. In addition to the synthesis of Ru3 and Ru6, we report the synthesis and characterization of a novel ruthenium (II) complex (dye A).
Author : Farah Hasan Matar
Publisher :
ISBN 13 :
Total Pages : 132 pages
Book Rating : 4.:/5 (787 download)
Download or read book Synthesis and Photophysical Properties of Ruthenium-based Compounds written by Farah Hasan Matar and published by . This book was released on 2008 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ruthenium poly-pyridyl compounds, RuLH, RuLCOOH and RuLOMe have been synthesized and their photophysical properties have been studied. It was shown that the sub stitution of one bipyridine ligand of a ruthenium tris-bipyridine with a stilben oid-bipyridine ligand does not affect the HOMO energy levels of the ruthenium ce nter. However, this modification results in lowering the LUMO energy levels by 0 .2 eV which in turn leads to a red-shift in the absorption spectrum. Also, we r eport the synthesis and characterization of a novel ruthenium-based dye, TG6. Th is complex shows good absorption properties in comparison to the one of the most efficient sensitizer (N3 dye), which may allow us to present this dye as a prom ising sensitizer in dye-sensitized solar cell systems.
Author : Boyang Chu
Publisher :
ISBN 13 :
Total Pages : 98 pages
Book Rating : 4.:/5 (926 download)
Download or read book Synthesis and Evaluation of Novel Sensitizers for Dye-sensitized Solar Cells written by Boyang Chu and published by . This book was released on 2015 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Andile Mkhohlakali
Publisher :
ISBN 13 :
Total Pages : 244 pages
Book Rating : 4.:/5 (123 download)
Download or read book Synthesis, Characterization and Evaluation of Ruthenium(II) Polypyridyl Complexes as Sensitizer for Dye Sensitized Solar Cells written by Andile Mkhohlakali and published by . This book was released on 2015 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Flavio L Souza
Publisher : Springer
ISBN 13 : 3319628003
Total Pages : 338 pages
Book Rating : 4.3/5 (196 download)
Download or read book Nanoenergy written by Flavio L Souza and published by Springer. This book was released on 2017-08-30 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discuss the recent advances and future trends of nanoscience in solar energy conversion and storage. This second edition revisits and updates all the previous book chapters, adding the latest advances in the field of Nanoenergy. Four new chapters are included on the principles and fundamentals of artificial photosynthesis using metal transition semiconductors, perovskite solar cells, hydrogen storage and neutralization batteries. More fundamental aspects can be found in this book, increasing the comparison between theory-experimental achievements and latest developments in commercial devices.
Author : Songyuan Dai
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 311034436X
Total Pages : 524 pages
Book Rating : 4.1/5 (13 download)
Download or read book Dye-sensitized Solar Cells written by Songyuan Dai and published by Walter de Gruyter GmbH & Co KG. This book was released on 2022-07-05 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: The operation of everything in the universe needs a special „material“-energy. The earth is no exception. There are many kinds of energy sources on earth. But where does the earth‘s energy come from? The answer is that everything grows under the sun. Developing renewable energy is of strategic importance to achieve sustainable energy supply. Simulating natural photosynthesis is the ultimate goal of effi cient solar energy conversion. Photovoltaic technology has been widely used in industry and will be one of the major energy sources in the future. Developing new materials and structures, the photoelectric conversion effi ciency of solar cells will be improved day by day, and solar cells will attract more and more attention. This book presents principles of solar photovoltaic conversion, and introduces the physical and chemical processes involved. Mechanisms which affect solar cell performance are also discussed.
Author : Paulina Tuulikefo Endjala
Publisher :
ISBN 13 :
Total Pages : 236 pages
Book Rating : 4.:/5 (128 download)
Download or read book Synthesis, characterization and photoresponse properties of ruthenium-based dye sensitizers for solar cells written by Paulina Tuulikefo Endjala and published by . This book was released on 2020 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ulrich S. Schubert
Publisher : Springer Nature
ISBN 13 : 3030755983
Total Pages : 462 pages
Book Rating : 4.0/5 (37 download)
Download or read book Ruthenium-Containing Polymers written by Ulrich S. Schubert and published by Springer Nature. This book was released on 2021-06-17 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the synthetic methodologies as well as the properties and potential usage of various ruthenium-containing materials. Starting from the first examples of 'ruthenopolymers' reported in the 1970s to the 3D architectures now synthesized, these materials have shown their importance far beyond fundamental polymer science. As well as highlighting the remarkable properties and versatile applications, this book also addresses a key question related to the applications of such heavy-metal-containing materials from the perspective of achieving a sustainable future. This book is of interest to both materials scientists and chemists in academia and industry.
Author : Masoud Soroush
Publisher : Academic Press
ISBN 13 : 9780128145418
Total Pages : 0 pages
Book Rating : 4.1/5 (454 download)
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.
Author : Tebello Nyokong
Publisher : Springer Science & Business Media
ISBN 13 : 9048138728
Total Pages : 672 pages
Book Rating : 4.0/5 (481 download)
Download or read book Photosensitizers in Medicine, Environment, and Security written by Tebello Nyokong and published by Springer Science & Business Media. This book was released on 2012-01-02 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses the synthesis of photosensitizers, the main emphasis being on the new methods of synthesis such as microwave, sonochemistry and the use of ionic liquids. It also addresses the photochemistry and photophysics of the photosensitizers alone and in combination with nanoparticles, the use of the photosensitizers in environmental control, safety and medicine. It discusses the common structures of the photosensitizers which are beneficial to these applications.
Author : Ajay Kumar Mishra
Publisher : CRC Press
ISBN 13 : 1351616498
Total Pages : 260 pages
Book Rating : 4.3/5 (516 download)
Download or read book Ruthenium Chemistry written by Ajay Kumar Mishra and published by CRC Press. This book was released on 2018-01-17 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book will describe Ruthenium complexes as chemotherapeutic agent specifically at tumor site. It has been the most challenging task in the area of cancer therapy. Nanoparticles are now emerging as the most effective alternative to traditional chemotherapeutic approach. Nanoparticles have been shown to be useful in this respect. However, in view of organ system complicacies, instead of using nanoparticles as a delivery tool, it will be more appropriate to synthesize a drug of nanoparticle size that can use blood transport mechanism to reach the tumor site and regress cancer. Due to less toxicity and effective bio-distribution, ruthenium (Ru) complexes are of much current interest. Additionally, lumiscent Ru-complexes can be synthesized in nanoparticle size and can be directly traced at tissue level. The book will contain the synthesis, characterization, and applications of various Ruthenium complexes as chemotherapeutic agents. The book will also cover the introduction to chemotherapy, classification of Ru- complexes with respect to their oxidation states and geometry, Ruthenium complexes of nano size: shape and binding- selectivity, binding of ruthenium complexes with DNA, DNA cleavage studies and cytotoxicity. The present book will be more beneficial to researchers, scientists and biomedical. Current book will empower specially to younger generation to create a new world of ruthenium chemistry in material science as well as in medicines. This book will be also beneficial to national/international research laboratories, and academia with interest in the area of coordination chemistry more especially to the Ruthenium compounds and its applications.
Author : Ponnadurai Ramasami
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 3110783649
Total Pages : 254 pages
Book Rating : 4.1/5 (17 download)
Download or read book Computational, Education, and Materials Science Aspects written by Ponnadurai Ramasami and published by Walter de Gruyter GmbH & Co KG. This book was released on 2022-10-03 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chapters collected from “The Virtual Conference on Chemistry and its Applications (VCCA-2021) – Research and Innovations in Chemical Sciences: Paving the Way Forward”. This conference was held in August 2021 and organized by the Computational Chemistry Group of the University of Mauritius. These peer-reviewed chapters offer insights into research on fundamental and applied chemistry with interdisciplinary subject matter.
Author : Shadrack John Adjogri
Publisher :
ISBN 13 :
Total Pages : 716 pages
Book Rating : 4.:/5 (122 download)
Download or read book Synthesis, Characterization and Evaluation of Photophysical and Electrochemical Properties of Ruthenium(II) Complexes for Dye-sensitized Solar Cells written by Shadrack John Adjogri and published by . This book was released on 2018 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jan Frederik Totz
Publisher : Springer
ISBN 13 : 3030110575
Total Pages : 164 pages
Book Rating : 4.0/5 (31 download)
Download or read book Synchronization and Waves in Active Media written by Jan Frederik Totz and published by Springer. This book was released on 2019-01-18 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: The interplay between synchronization and spatio-temporal pattern formation is central for a broad variety of phenomena in nature, such as the coordinated contraction of heart tissue, associative memory and learning in neural networks, and pathological synchronization during Parkinson disease or epilepsy. In this thesis, three open puzzles of fundametal research in Nonlinear Dynamics are tackled: How does spatial confinement affect the dynamics of three-dimensional vortex rings? What role do permutation symmetries play in the spreading of excitation waves on networks? Does the spiral wave chimera state really exist? All investigations combine a theoretical approach and experimental verification, which exploit an oscillatory chemical reaction. A novel experimental setup is developed that allows for studying networks with N > 1000 neuromorphic relaxation oscillators. It facilitates the free choice of network topology, coupling function as well as its strength, range and time delay, which can even be chosen as time-dependent. These experimental capabilities open the door to a broad range of future experimental inquiries into pattern formation and synchronization on large networks, which were previously out of reach.
Author : Stefan Ruile
Publisher :
ISBN 13 :
Total Pages : 142 pages
Book Rating : 4.:/5 (776 download)
Download or read book Novel Ruthenium (II) Phenylcyanamide Complexes written by Stefan Ruile and published by . This book was released on 1997 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
