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Metal Complex Based Electron Transfer Mediators In Dye Sensitized Solar Cells
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Book Synopsis Metal Complex-based Electron-transfer Mediators in Dye-sensitized Solar Cells by :
Download or read book Metal Complex-based Electron-transfer Mediators in Dye-sensitized Solar Cells written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This present invention provides a metal-ligand complex and methods for using and preparing the same. In particular, the metal-ligand complex of the present invention is of the formula: L.sub.a-M-X.sub.b where L, M, X, a, and b are those define herein. The metal-ligand complexes of the present invention are useful in a variety of applications including as electron-transfer mediators in dye-sensitized solar cells and related photoelectrochromic devices.
Book Synopsis Transition Metal Polypyridine Complexes by :
Download or read book Transition Metal Polypyridine Complexes written by and published by . This book was released on 2017 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Elliott group has long been supported by DOE for studies of cobalt(II/III) trisbypiridine (DTB) mediator complexes in dye sensitized solar cells. Previous work demonstrated that Co(II/III) chemistry is sensitive to the environment, showing unprecedented electrode-surface and electrolyte dependant voltammetry. In electrolytes that have large lipophilic cations, voltammetry of the [Co(DTB)3]2+/3+ couple is nearly Nernstian in appearance on nominally oxide-free metal surfaces. In contrast, on semiconductor electrodes in electrolytes with small, hard cations such as Li+, the electron transfer rates are so slow that it is difficult to measure any Faradaic current even at overpotentials of ±1 V. These studies are of direct relevance to the operation of cobalt-based mediators in solar cells. The research has also shown that these mediators are compatible with copper phenantroline based dyes, in contrast to I- due to the insolubility of CuI.
Book Synopsis Novel Redox Mediators for Dye Sensitized Solar Cells by : Ishanie Rangeeka Perera Hetti Arachchige
Download or read book Novel Redox Mediators for Dye Sensitized Solar Cells written by Ishanie Rangeeka Perera Hetti Arachchige and published by . This book was released on 2015 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the depletion of the earth's oil reserves, the likely doubling of the world's energy consumption over the next three decades and the startling climatic consequences caused by fossil fuel combustion, the development of new technologies that employ various sources of renewable energy is an urgent necessity. Among the sources of renewable energy, solar energy is considered the most promising since the energy reaching earth in one hour is greater than the annual consumption by human beings. Thus, various types of photovoltaic devices have been invented to harvest solar energy. However, the construction of these devices can be quite expensive and required advanced processing techniques. The dye sensitized solar cell (DSC) is one promising technology which can potentially be constructed at low cost with simple procedures and with lower environmental impact than most other available photovoltaics. DSCs typically consist of a working electrode with a mesoporous oxide layer composed of nano-size particles coated on a conducting glass. Attached to the surface of the nanocrystalline film is a monolayer of a photoactive dye. An electrolyte consisting of a redox couple is filled between the working electrode and the counter electrode, a conducting glass coated with a catalyst. The function of the electrolyte is to transport charge between two electrodes and to regenerate the photo-oxidized/reduced dye, following photo-induced injection into the semiconductor. This thesis focuses on the development of new DSC electrolytes based on transition metal complexes as redox couples with a view to improving the environmental friendliness and performance in both n-type and p-type devices. In n-type DSCs (n-DSCs), light illumination initiates the photoexcitation of the dye which then injects an electron in to the conduction band of the n-type semiconductor. The injected electron flows through the external circuit towards the counter electrode while the reduced redox mediator in the electrolyte regenerates the photo-oxidized dye. Then, the oxidized redox mediator undergoes reduction by electron injection at the counter electrode completing the charge transfer cycle. In contrast, the electron flow in p-type DSCs (p-DSCs) is directly opposite to that of n-DSCs. In these devices the photo-excited dye injects a hole into the valence band of the p-type semiconductor. In other words, an electron is transferred to the photo-excited dye from the valence band of the p-type semiconductor followed by photo-excitation. The reduced dye is then regenerated by the oxidized redox mediator in the electrolyte. The oxidized redox mediator is restored by injection of an electron from the reduced redox mediator into the counter electrode which then flows through the external circuit towards the working electrode to complete the cycle. In searching for environmental friendly redox mediators, a manganese based redox mediator, tris(acetylacetonato)manganese(III)/(IV), was utilized in n-DSCs. In addition, to the low toxicity of acetylacetonate complexes, there is the possibility to fine tuning of the redox potential by applying a wide variety of acetylacetone derivatives. Tris(acetylacetonato)manganese(III)/(IV) mediated devices demonstrated promising performances with both organic and metal based sensitizers leading to a vast selection of sensitizers. A good overall energy conversion of 4.4% was demonstrated for these devices in conjunction with both types of sensitizers. Due to the impressive properties of acetylacetonate complexes and suitable redox potentials, the tris(acetylacetonato)iron(II)/(III) complexes were used as redox mediators in p-DSCs. Development of redox shuttles with suitable redox potentials and fast dye regeneration kinetics is vital for further improvement in p-DSC efficiencies. Application of a nickel oxide (NiO) blocking layer on the working electrode suppressed unfavourable back reactions at the electrolyte/working electrode interface. Furthermore, fast dye regeneration kinetics were observed for the tris(acetylacetonato)iron(II)/(III) redox mediator which led to the best current density and the best overall energy conversion efficiency (2.5%) reported so far for p-DSCs. The efficiency of p-DSCs is limited mainly due to the highly coloured semiconductor material in use (NiO). None of the alternative materials introduced, such as; copper based semiconductor materials and boron-doped diamond, could surpass the performance of the devices based on NiO. Recently, surprising p-type conductivity was revealed on well-known n-type degenerate semiconductor, indium doped tin oxide (ITO). Yet, the reported performance for p-DSCs based on ITO was quite low compared to NiO based devices. To further exploit this property and develop devices with better efficiencies, mesoporous ITO was applied in p-DSCs with three different redox mediators iodide/triiodide, tris(ethylenediamine)cobalt(II)/(III) and tris(acetylacetonato)iron(II)/(III). For tris(acetylacetonato)iron(II)/(III) mediated devices an efficiency of 2% was reached, which rivalled our best result of 2.5% for devices based on NiO. The mechanism of operation of the ITO based devices was also analysed and ITO shows a significant local density of states arising below -4.8 eV, that initiates electron transfer from the ITO to the excited dye leading to the photocathodic current within the device. Comparative studies also indicated that the rate of recombination at the ITO/electrolyte interface was faster than in the case of NiO. Therefore, development of redox mediators with faster dye regeneration kinetics or designing sensitizers with longer charge separated state may facilitate construction of more efficient p-DSCs based on mesoporous ITO. Finally, p-DSCs were constructed with an aqueous electrolyte based on (diaminosarcophagine)cobalt(II)/(III). Properties, such as low light absorption in visible region and more negative redox potential (vs. NHE), encouraged their use as p-DSCs redox mediators. The highest reported voltages for p-DSCs were measured (>800 mV) for these devices and were attributed to more negative redox potential. Moreover, the dependence of the device performance on pH of the electrolyte was studied. The redox potential of the electrolyte shifted from -0.10 V to -0.34 V (vs. NHE) when pH was varied from 4 to 7 and then remained the same up to pH 11. The best device performance (1.33%) was recorded at pH 8.In summary, a series of transition metal complexes were introduced as redox mediators for either n-type or p-type DSCs that pave the way to enhance device performance. Furthermore, ITO was shown to be a suitable semiconductor material for p-DSCs that could overcome the major drawback in these devices.
Book Synopsis Development of Solar Cells by : Juganta K. Roy
Download or read book Development of Solar Cells written by Juganta K. Roy and published by Springer Nature. This book was released on 2021-05-12 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive overview of the fundamental concept, design, working protocols, and diverse photo-chemicals aspects of different solar cell systems with promising prospects, using computational and experimental techniques. It presents and demonstrates the art of designing and developing various solar cell systems through practical examples. Compared to most existing books in the market, which usually analyze existing solar cell approaches this volume provides a more comprehensive view on the field. Thus, it offers an in-depth discussion of the basic concepts of solar cell design and their development, leading to higher power conversion efficiencies. The book will appeal to readers who are interested in both fundamental and application-oriented research while it will also be an excellent tool for graduates, researchers, and professionals working in the field of photovoltaics and solar cell systems.
Book Synopsis Dye-Sensitized Solar Cells by : Masoud Soroush
Download or read book Dye-Sensitized Solar Cells written by Masoud Soroush and published by Academic Press. This book was released on 2019-02-23 with total page 470 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. Includes chapter contributions from worldwide leaders in the field Offers first-principles of modelling solar cells with different system scales, from the electronic to macroscopic level References, in a single resource, state-of-the-art techniques in modelling, optimization and design of DSSC
Book Synopsis Cobalt(II)/(III) Based Redox Mediators for Dye-sensitized Solar Cells by : Muhammad Kalim Kashif
Download or read book Cobalt(II)/(III) Based Redox Mediators for Dye-sensitized Solar Cells written by Muhammad Kalim Kashif and published by . This book was released on 2013 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis focuses on the search for alternative redox mediators, a critical component of the electrolyte used in dye-sensitized solar cells (DSCs). The redox couple plays the important role of facilitating dye regeneration, which occurs following the light-induced electron injection from the dye into the semiconductor. The maximum photovoltage (VOC) achievable with DSCs strongly depends on the redox potential of the mediator used in these devices. The redox potential of the classical iodide/triiodide redox couple typically sits 600-700 mV above that of the dye (E(D/D+)). As a consequence, a sizable amount of energy is dissipated during the dye-regeneration process, restricting the maximum achievable VOC. Currently major efforts are being made to use alternative redox mediators in place of iodide/triiodide.Very recently, cobalt(II)/(III)-based redox mediators have been used to fabricate DSCs with record efficiency. These DSCs were made using [Co(bpy)3]2+/3+ as a redox mediator. The 2,2'-bipyridine (bpy) used in this case is a bidentate ligand that coordinates to the metal centre via two nitrogen donor atoms. Modification in the architecture of these ligands offers an opportunity to tune the redox potential of their respective cobalt complexes. Many derivatives of bpy and the tridentate ligand, 2,2',6',2"-terpyridine (terpy), have been used to synthesize redox couples for DSCs. However, the use of redox couples based on the complexes of higher denticity ligands was virtually unexplored prior to this research. In this thesis, pentadentate (L = PY5Me2) and hexadentate (L' = bpyPY4) polypyridyl ligands have been used to prepare novel cobalt complexes for application as redox couples in DSCs. Based on the chelate effect, the new complexes were expected to be thermodynamically more stable than analogues prepared from lower denticity ligands, such as bpy and terpy. In case of the pentadentate ligand complexes with the general formula [Co(L)(X)]2+/3+, where L = pentadentate ligand and X = weakly binding ligand, two complexes were isolated in which the cobalt center resides in a slightly distorted octahedral geometry. For these complexes, there is an opportunity to fine-tune the potential of the redox couple by simply replacing the monodentate ligand X with another Lewis base with a stronger binding affinity for cobalt(II)/(III). The Lewis bases chosen for this study are common DSC electrolyte additives, which are generally believed to act as surface passivating agents. Using a number of analytical techniques, it was shown that t-butylpyridine (tBP) and N-methylbenzimidazole (NMBI) can easily replace the monodentate acetonitrile ligand (X) to form a redox couple with the general formula [Co(L)(B)]2+/3+. By applying an organic sensitizer, efficiencies of 8.4% and 9.4% were attained under simulated light intensity of 100% sun (1,000 W m-2 AM 1.5) and 10% sun, respectively, with an open circuit voltage (VOC) of 1V at 100% sun for the tBP based mediator. To further develop a thermodynamically stable redox mediator capable of extending the long term stability of the DSCs, a hexadentate polypyridyl ligand (L') was used to prepare novel cobalt(II)/(III) complexes, which were characterized using techniques such as single crystal X-ray crystallography. These [Co(L')]2+/3+ complexes were then applied as redox mediators in DSCs in combination with an organic sensitizer, MK2. The newly synthesized redox couple, [Co(L')]2+/3+, results in higher DSC efficiencies than the [Co(bpy)3]2+/3+ couple. Most importantly, the lab scale DSCs made with this redox mediator exhibit superior stability under continuous full sun illumination compared to those based on [Co(bpy)3]2+/3+, highlighting the importance of the thermodynamic stability of the complex for future applications in commercial DSCs. The oxidation of the cobalt(II) complex to the corresponding cobalt(III) complex is an important part of the synthesis of the redox couple. Efforts to oxidize [Co(L)(X)]2+/3+ by NOBF4 resulted in an unwanted reaction product, which was further investigated. Single crystal X-ray analysis revealed the formation of [Co(L)(F)]2+, which resulted from the decomposition of BF4 over time. The synthesis and structural elucidation of [Co(L)(F)3+ is provided, as it could find potential application as redox couple or as a catalyst. A preferable method for the oxidation of cobalt(II) polypyridyl complexes is also suggested. In conclusion, new non-corrosive redox mediators based on cobalt(II)/(III) complexes comprising multidentate polypyridyl ligands were developed in this thesis. The ability to adjust the redox properties of these mediators provides the scope to fine-tune the mediator properties to those of specific sensitizers. This in turn should allow the minimization of dye-regeneration driving forces, which would consequently improve the energy conversion efficiencies.
Book Synopsis Electron Transfer at Molecule-Metal Oxide Interfaces for Applications in Dye-Sensitized Devices by : Alex J. Robb
Download or read book Electron Transfer at Molecule-Metal Oxide Interfaces for Applications in Dye-Sensitized Devices written by Alex J. Robb and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Designing systems that can allow for increased control of electron transfer processes at dye-semiconductor interfaces is useful in a wide variety of applications, but specifically in the field of dye-sensitized devices such as dye-sensitized solar cells and dye-sensitized photodetectors.In trying to maximize regeneration rates and minimize recombination rates in DSSCs through metal ion coordination to the non-surface bound carboxylate groups of the dye, it was discovered that doing so can ideally slow recombination rates, however it was unclear if the additional steric effects or charge of the metal ion were the cause of this behavior. Using three differently charge mediators it was ultimately discovered that electrostatics may influence regeneration rates, but steric bulk of the components used ultimately had a greater effect on the overall device performance. With this result in hand and contemplating on the simple geometric restrictions imposed by the mesoporous nature of high surface area metal oxide substrates, we sought to determine the role porosity has on multilayer assembly loading, electrolyte diffusion, and subsequent device performance. Through modifying the porosity of the film through sintering procedure modifications and loading the film with dye molecules, it was found that porosity should be considered when designing multimolecular architectures as to have enough space to load the number of components desired and leave room for mediator diffusion. Finally, a prototype dye-sensitized photodetector was designed with efficient charge separation characteristics in the red to infrared wavelength range. This device utilized the same device structure as DSSCs and the performance metrics for the device were measured and reported for this first of its kind device. Seeking to improve the devices performance through applying an external bias, it was determined that the metal oxide had to be shifted from TiO2 to ITO and insulating layers of atomically thin metal oxides were added in order to stabilize the performance of the device under bias.
Book Synopsis Organometallics and Related Molecules for Energy Conversion by : Wai-Yeung Wong
Download or read book Organometallics and Related Molecules for Energy Conversion written by Wai-Yeung Wong and published by Springer. This book was released on 2015-03-30 with total page 541 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a critical perspective of the applications of organometallic compounds (including those with metal or metalloid elements) and other related metal complexes as versatile functional materials in the transformation of light into electricity (solar energy conversion) and electricity into light (light generation in light emitting diode), in the reduction of carbon dioxide to useful chemicals, as well as in the safe and efficient production and utilization of hydrogen, which serves as an energy storage medium (i.e. energy carrier). This book focuses on recent research developments in these emerging areas, with an emphasis on fundamental concepts and current applications of functional organometallic complexes and related metal-based molecules for energy research. With contributions from front-line researchers in the field from academia and industry, this timely book provides a valuable contribution to the scientific community in the field of energy science related to metal-based molecular materials. Wai-Yeung Wong, PhD, is Chair Professor and Head of the Department of Chemistry at Hong Kong Baptist University, Hong Kong, P. R. China.
Book Synopsis Photoelectrochemical Solar Cells by : Nurdan Demirci Sankir
Download or read book Photoelectrochemical Solar Cells written by Nurdan Demirci Sankir and published by John Wiley & Sons. This book was released on 2018-12-10 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an overall view of the photoelectrochemical systems for solar hydrogen generation, and new and novel materials for photoelectrochemical solar cell applications. The book is organized in three parts. General concepts and photoelectrochemical systems are covered in Part I. Part II is devoted to photoactive materials for solar hydrogen generation. Main focus of the last part is the photoelectrochemical related systems. This part provides a diverse information about the implementation of multi-junctional solar cells in solar fuel generation systems, dye-sensitized solar hydrogen production and photocatalytic formation of photoactive semiconductors.
Book Synopsis Novel Redox Couples for Dye-sensitized Solar Cells by : Torben Jost Daeneke
Download or read book Novel Redox Couples for Dye-sensitized Solar Cells written by Torben Jost Daeneke and published by . This book was released on 2012 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dye-sensitized solar cells (DSCs) are regarded to be a promising technology with the ability to convert sun light directly into electricity at competitive costs. Unlike conventional solar cells, these devices are not made from high purity semiconductor junctions but from an assembly of functional materials, which under illumination undergo a series of charge transfer reactions leading to charge separation and the generation of electricity. In the typical assembly, a mesoporous wide band gap semiconductor is sensitized by a dye. This sensitized working electrode is in direct contact with an electrolyte containing a redox couple. The electrolyte layer is positioned between the working electrode and the counter electrode which is usually a conductive glass sheet coated with a thin layer of a catalyst. The benefit of the DSC is that each function in the solar cell is carried out by a different material, leading to lower requirements of the materials and allowing convenient fine tuning of each individual component.While most components of the DSC have been thoroughly optimized, the electrolyte still is the limiting factor when it comes to up scaling and commercialization of this technology. In operation the redox couple in the electrolyte has a dual role. It is required to reduce the photooxidized dye and facilitate charge transport between the electrodes to allow for the continuous generation of electricity. To date, most DSC designs make use of the iodide-triiodide redox couple. While this leads to relatively high efficiencies, the complicated two electron redox chemistry of this couple causes intrinsic efficiency losses, limiting the achievable power conversion efficiency. Furthermore, the corrosive nature of I-/I3- complicates the design of durable, large scale solar cells, since cost reducing metal substrates and charge collection grids are dissolved by these electrolytes. As a result, DSCs were frequently efficient in the laboratory, but devices with the commercially sufficient dimensions were often comparatively inefficient and expensive. At the beginning of this work, relatively little was known about the requirements for the 'perfect' redox couple to replace I-/I3-. A few alternatives had been published, but all the devices showed comparatively low efficiency. In this thesis, we have investigated iron complexes as DSC redox mediators. The ferrocene / ferrocenium redox couple had been tried previously but the resulting DSCs showed very poor energy conversion efficiency.Ferrocene (biscyclopentadienyl iron) is the widely accepted reference redox couple for the work in non-aqueous solutions and one of the best characterized compounds in the field of electrochemistry. The ferrocene unit has been shown to be highly tunable in its electrochemical properties by derivatization. Furthermore, a wide range of ferrocene derivatives is commercially available. Due to the combination of being well characterized and the availability of a vast compound library, this group of complexes was considered ideal when attempting to define the properties of the ideal DSC redox couple.In this work, high efficiency DSCs are reported that use a ferrocene / ferrocenium redox couple. It was identified that the decomposition of the ferrocenium ion in air leads to rapid device degradation and low efficiencies. After developing a technique that allowed the DSCs to be filled and sealed under the exclusion of oxygen, and optimizing the DSC design for the use with this new electrolyte, conversion efficiencies of up to 7.5 % were achieved. The reference I-/I3- solar cell reached 6.2 %.A series of ferrocene derivatives was then studied to investigate the influence of the redox potential of the redox couple on the charge transfer kinetics in the solar cell. It was identified that a threshold exists until which an increased redox potential directly results into an increased voltage and efficiency. After this threshold, the charge transfer reaction between the photooxidized dye and the redox couple becomes sluggish, leading to increased losses and lower efficiencies. An in depth study, utilizing a range of sensitizers and a library of ferrocene derivatives, allowed us to investigate this crucial charge transfer process. Measurements of the reaction kinetics by nanosecond pulsed laser transient absorption spectroscopy allowed us to estimate that a driving force of 0.25 eV is necessary to achieve quantitative dye regeneration (yield > 99.9 %) for typical electrolyte concentrations. With the knowledge gained from this work, any particular sensitizer can be matched with an appropriate redox couple, reducing energy losses in the solar cell due to the poor alignment of redox potentials. A further focus was the work with aqueous electrolytes containing the ferricyanide / ferrocyanide redox system. The use of water instead of organic solvents has clear benefits due to the abundance of this solvent and environmental considerations. Ferrocyanide is a standard redox couple for aqueous solutions, having a well defined and documented redox chemistry under a wide range of conditions. In this work, we present the first efficient DSCs utilizing this system. Water as an electrolyte solvent for DSCs has been rarely investigated. The influence of parameters, such as pH and buffers, on device performance will have to be studied and the ferricyanide / ferrocyandide redox system forms a solid base for such future work.In summary, a range of iron complexes has been investigated for the use as redox couples for dye-sensitized solar cells resulting in high efficiencies. Certain requirements of the ideal redox couple have been established, allowing to match sensitizers with a redox couple that optimizes the system and minimizes internal energy losses.
Book Synopsis Comprehensive Energy Systems by : Ibrahim Dincer
Download or read book Comprehensive Energy Systems written by Ibrahim Dincer and published by Elsevier. This book was released on 2018-02-07 with total page 5543 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive Energy Systems, Seven Volume Set provides a unified source of information covering the entire spectrum of energy, one of the most significant issues humanity has to face. This comprehensive book describes traditional and novel energy systems, from single generation to multi-generation, also covering theory and applications. In addition, it also presents high-level coverage on energy policies, strategies, environmental impacts and sustainable development. No other published work covers such breadth of topics in similar depth. High-level sections include Energy Fundamentals, Energy Materials, Energy Production, Energy Conversion, and Energy Management. Offers the most comprehensive resource available on the topic of energy systems Presents an authoritative resource authored and edited by leading experts in the field Consolidates information currently scattered in publications from different research fields (engineering as well as physics, chemistry, environmental sciences and economics), thus ensuring a common standard and language
Book Synopsis Theoretical and Computational Photochemistry by : García Iriepa Cristina
Download or read book Theoretical and Computational Photochemistry written by García Iriepa Cristina and published by Elsevier. This book was released on 2023-04-21 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Theoretical and Computational Photochemistry: Fundamentals, Methods, Applications and Synergy with Experimental Approaches provides a comprehensive overview of photoactive systems and photochemical processes. After an introduction to photochemistry, the book discusses the key computational chemistry methods applied to the study of light-induced processes over the past decade, and further outlines recent research topics to which these methods have been applied. By discussing the synergy between experimental and computational data, the book highlights how theoretical studies could facilitate understanding experimental findings. This helpful guide is for both theoretical chemists and experimental photochemistry researchers interested in utilizing computational photochemistry methods for their own work. Reviews the fundamentals of photochemistry, helping those new to the field in understanding key concepts Provides detailed guidance and comparison of computational and theoretical methods, highlighting the suitability of each method for different case studies Outlines current applications to encourage discussion of the synergy between experimental and computational data, and inspiring further application of these methods to other photochemical processes
Book Synopsis Solar Energy Conversion and Storage by : Suresh C. Ameta
Download or read book Solar Energy Conversion and Storage written by Suresh C. Ameta and published by CRC Press. This book was released on 2015-11-05 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solar Energy Conversion and Storage: Photochemical Modes showcases the latest advances in solar cell technology while offering valuable insight into the future of solar energy conversion and storage. Focusing on photochemical methods of converting and/or storing light energy in the form of electrical or chemical energy, the book:Describes various t
Download or read book Nanomaterials written by Deborah M. Kane and published by CRC Press. This book was released on 2016-02-22 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanomaterials: Science and Applications reports up-to-the-minute research on nanoparticles for drug delivery and applications in nanomedicine, nanoelectronics, and microelectromechanical systems (MEMS) for biosensors; melanin as a nano-based future material; nanostructured materials for solar cell applications; the world of quantum dots illustrated
Book Synopsis Dye-Sensitized Solar Cells by : Masoud Soroush
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 Synopsis Counter Electrodes for Dye-Sensitized and Perovskite Solar Cells (2 Vols.) by : Sining Yun
Download or read book Counter Electrodes for Dye-Sensitized and Perovskite Solar Cells (2 Vols.) written by Sining Yun and published by John Wiley & Sons. This book was released on 2019-01-04 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt: A guide to one of the most important aspects for affordable and highly efficient dye-sensitized solar cells Dye-sensitized solar cells have the potential to be one of the most promising photovoltaic technologies for production of renewable and clean energy. Counter Electrodes for Dye-Sensitized and Perovskite Solar Cells offers an introduction to the various types of counter electrode catalysts for dye-sensitized solar cells and perovskite solar cells, including metal and metal compounds, carbon materials, polymers, and composites. With contributions from an international panel of experts, the book contains a discussion of the design and synthesis of the catalysts, characterization and stability of the devices, as well as calculations on properties. The contributors cover a wide range of topics including information on: carbon nanotubes electrocatalysts for I-mediated dye-sensitized solar cells; Pt-loaded composite electrocatalysts for I-mediated dye-sensitized solar cells; metal contact electrodes for perovskite solar cells; and much more. The book also includes insight into the future developments in the field. This important resource Covers the various types of counter electrode catalysts and presents design strategies, synthesis methods, theoretical calculation and stability evaluation Includes information on low-cost counter electrode catalysts and commercial applications of dye-sensitized sensitized solar cells Disscuses how electrode catalysts can be applied in a range of fields, such as solar cells, fuel cells, hydrogen production, and photocatalysis Offers contributions from leading experts in the field including Anders Hagfeldt, one of the world's leading researchers in this field Written for materials scientists, solid state chemists, electrochemists, catalytic chemists, solid state physicists, and chemical industry professionals, Counter Electrodes for Dye-Sensitized and Perovskite Solar Cells is a comprehensive and authoritative guide to dye-sensitized solar cells.
Book Synopsis Advances in Composite Materials for Medicine and Nanotechnology by : Brahim Attaf
Download or read book Advances in Composite Materials for Medicine and Nanotechnology written by Brahim Attaf and published by BoD – Books on Demand. This book was released on 2011-04-01 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to their good mechanical characteristics in terms of stiffness and strength coupled with mass-saving advantage and other attractive physico-chemical properties, composite materials are successfully used in medicine and nanotechnology fields. To this end, the chapters composing the book have been divided into the following sections: medicine, dental and pharmaceutical applications; nanocomposites for energy efficiency; characterization and fabrication, all of which provide an invaluable overview of this fascinating subject area. The book presents, in addition, some studies carried out in orthopedic and stomatological applications and others aiming to design and produce new devices using the latest advances in nanotechnology. This wide variety of theoretical, numerical and experimental results can help specialists involved in these disciplines to enhance competitiveness and innovation.
