Download or read book Light Harvesting Nanomaterials written by Surya Prakash Singh and published by Bentham Science Publishers. This book was released on 2015-02-02 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mankind’s search for alternative energy sources to oil and gas reserves has been fueled by increasing energy demands and technological developments. Today, the prospect of harvesting energy from new sources is a major issue in scientific and economic discourse and will remain to be so in the future decades to come. Sunlight is known as a reliable and renewable energy source which can be utilized to meet forthcoming energy demand if it is exploited in an efficient manner. Light harvesting nanomaterials represent one way in which this can be achieved through biomimetics or artificially designed supramolecular structures. This eBook brings together facts about the underlying principles and theory about light harvesting systems. It presents interdisciplinary research work with emphasis on nanoscale objects used to harvest light. Light Harvesting Nanomaterials details a broad range of systems including solar cells which involve hybrid materials to durable tetrapyrrolic sensitizers and other nanopolymer based systems. This eBook is a valuable reference for advanced readers interested in novel technologies that utilize light energy for functional and technical benefits.
Download or read book Light Harvesting Nanomaterials written by Dirk C. Gibson and published by . This book was released on 2015-02-05 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Mankind's search for alternative energy sources to oil and gas reserves has been fueled by increasing energy demands and technological developments. Today, the prospect of harvesting energy from new sources is a major issue in scientific and economic disc"
Download or read book Nanotechnology and Photovoltaic Devices written by Jan Valenta and published by CRC Press. This book was released on 2015-06-01 with total page 441 pages. Available in PDF, EPUB and Kindle. Book excerpt: Silicon is an abundant element and is produced in large quantities for the electronic industry. The falling price of this commodity also feeds the growth of solar photovoltaics (PV). However, solar cells (SCs) based on bulk semiconductors have quite limited maximum attainable performance. Therefore, new principles and materials are being investigat
Download or read book Functionalization of Nanomaterial Surfaces for Light harvesting and Nanotoxicology Applications written by Becca Anne Putans and published by . This book was released on 2014 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to their unique reactivity and properties, nanomaterials are being used in many industrial and consumer products and applications. One area of particular interest to the work presented here is the harvesting of solar energy for electricity. Dye-sensitized solar cells (DSSCs) are reaching efficiencies where they are becoming viable options for consumer use. A nanoparticle film of metal oxides is used as a coating on one electrode to effectively separate charge carriers and move them through the external circuit to do work. The most commonly used materials for DSSCs are Ru based dyes and TiO2. In this work we have developed a new surface functionalization method that will allow for the use of other, more earth-abundant materials, such as Cu(I). This is accomplished by first attaching a "building-block" ligand to the metal oxide surface and then creating the rest of the light-harvester in situ. The on-surface assembly allows for regeneration of the photo-active molecule on the surface and eliminates the need to synthesize the full light absorbing complex with a binding group that will attach to the metal oxide. Nanoparticles are also being used in consumer products such as food, cosmetics, and clothing. These materials will inevitably end up in the environment and coming into contact with biological organisms, however, their toxicological effects are widely disputed. Some studies have shown that nanoparticles induce a toxic response in model organisms, while other studies show that the capping ligand around the particle is what is inducing this response. In this work we have developed a library of ligands that can be used on two model systems, gold and diamond, where we only manipulate one variable at a time. The ligands have a modular head group that allows for control of charge while keeping the backbone structure the same. In this way we will be able to tease out which variable has the most influence over biological interaction, the properties of the core material, or the properties of the ligand shell.
Download or read book DNA based Nanomaterials written by Michael R. Duff and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Functionalization of Nanomaterial Surfaces for Light harvesting and Nanotoxicology Applications written by Becca Anne Putans and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to their unique reactivity and properties, nanomaterials are being used in many industrial and consumer products and applications. One area of particular interest to the work presented here is the harvesting of solar energy for electricity. Dye-sensitized solar cells (DSSCs) are reaching efficiencies where they are becoming viable options for consumer use. A nanoparticle film of metal oxides is used as a coating on one electrode to effectively separate charge carriers and move them through the external circuit to do work. The most commonly used materials for DSSCs are Ru based dyes and TiO2. In this work we have developed a new surface functionalization method that will allow for the use of other, more earth-abundant materials, such as Cu(I). This is accomplished by first attaching a "building-block" ligand to the metal oxide surface and then creating the rest of the light-harvester in situ. The on-surface assembly allows for regeneration of the photo-active molecule on the surface and eliminates the need to synthesize the full light absorbing complex with a binding group that will attach to the metal oxide. Nanoparticles are also being used in consumer products such as food, cosmetics, and clothing. These materials will inevitably end up in the environment and coming into contact with biological organisms, however, their toxicological effects are widely disputed. Some studies have shown that nanoparticles induce a toxic response in model organisms, while other studies show that the capping ligand around the particle is what is inducing this response. In this work we have developed a library of ligands that can be used on two model systems, gold and diamond, where we only manipulate one variable at a time. The ligands have a modular head group that allows for control of charge while keeping the backbone structure the same. In this way we will be able to tease out which variable has the most influence over biological interaction, the properties of the core material, or the properties of the ligand shell
Download or read book Photosynthesis written by Harvey J.M. Hou and published by Elsevier. This book was released on 2023-07-27 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photosynthesis: From Plants to Nanomaterials in the Nanomaterial-Plant Interactions series, summarizes both the foundational mechanisms and latest advances in photosynthesis. With a strong emphasis on artificial photosynthesis, the book also analyzes the role of nanomaterials in energy production. Starting with an introduction to plant photosynthetic systems, chapters discuss the structure of light harvesting systems, energy transfer and membrane protein complexes. The book later describes the role of nanoparticles in photosynthesis, including agricultural applications, advances in nanobionics, and the impact of engineered nanomaterials. This book is an essential read for researchers and students interested in photosynthesis, bionanotechnology and nanomaterials. Presents the latest advances in plant photosynthesis Discusses the role of nanomaterials in energy production and other photosynthetic mechanisms Highlights nanotechnology and artificial photosynthesis
Download or read book Solar Light Harvesting with Nanocrystalline Semiconductors written by Oleksandr Stroyuk and published by Springer. This book was released on 2017-11-07 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explains the use of nanocrystalline semiconductors in the harvesting of energy from solar light. It introduces promising methodology and technology which may help to increase the efficiency of light harvesting – one of the major challenges on the way toward sustainable energy generation.The book starts with a general introduction to the photochemistry of semiconductor nanocrystals. In the introductory chapter, the author also provides a frank and critical discussion on perspectives and limitations of the photocatalytic processes for solar light conversion including a historical account on semiconductor photocatalysis. He discusses that (and also why) it is a long way from laboratory prototypes to real sustainable technologies.The following chapters outline the conversion of solar light energy in semiconductor nanophotocatalysis on the one hand, and to (electric) energy in nanocrystalline semiconductor-based solar cells on the other hand. Topics addressed include nanophotocatalytic hydrogen production, artificial photosynthesis, quantum-dot sensitized liquid-junction and bulk heterojunction solar cells. Perspectives and opportunities, but also bottlenecks and limitations are discussed and the novel systems compared with established technology, such as classical silicon solar cells. While readers in this way learn to understand the basics and get introduced to the current research in the field, the final chapter provides them with the necessary knowledge about methodology, both in synthesis and characterization of semiconductor nanophotocatalysts and semiconductor nanomaterials, including examples for the practice of photocatalytic experiments and the studies of semiconductor-based solar cells.
Download or read book Advanced Nanomaterials for Solar Cells and Light Emitting Diodes written by Feng Gao and published by Elsevier. This book was released on 2019-04-10 with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Nanomaterials for Solar Cells and Light Emitting Diodes discusses the importance of nanomaterials as the active layers in solar cells and light emitting diodes (LEDs), along with the progress of nanomaterials as the electron and hole transporting layers. Specifically, the book reviews the use of nano-morphology of polymers, small molecules, and the organic-inorganic perovskites as the active layers in solar cells and LEDs. The design, fabrication and properties of metal-oxide-based nano-structures as electron and hole transporting layers are also reviewed. In addition, the development of plasmonic nanomaterials for solar cells and LEDs is discussed. Each topic in this book includes an overview of the materials system from principles to process. The advantages, disadvantages and related methodologies are highlighted. The book includes applications based on materials and emphasize how to improve the performance of solar cells and LEDs by the materials design, with a focus on nanomaterials. Provides latest research on nanostructured materials including small molecules, polymers, organic-inorganic perovskites, and many other relevant materials systems for solar cells and LEDs Addresses each promising materials system from principles to process, detailing the advantages and disadvantages of the most relevant methods of processing and fabrication Looks ahead to most likely techniques to improve performance of solar cells and light emitting diodes
Download or read book Vibronic Coherence in Light harvesting Proteins and Semiconductor Nanomaterials written by Ryan Tilluck and published by . This book was released on 2020 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt: Light harvesting in photosynthetic organisms employ complex arrays of highly ordered chromophores in proteins for the capture and transfer of energy from solar photons. The structural design of the light harvesting proteins leads to extensive delocalization across many molecules of the system. Recent studies demonstrate the involvement of quantum coherence in extraordinarily fast energy transfer pathways in photosynthetic light harvesting proteins. The extent of delocalization may also form vibronic excitons, vibronic excitons, arising from quantum coherent mixing of vibrations with the extensively delocalized electronic states. Vibronic excitons can greatly enhance the excitation energy transfer within light harvesting systems. In this dissertation, the detection and role of quantum coherence in the peridinin-chlorophyll protein (PCP), a mid-visible peripheral light-harvesting protein in marine dinoflagellates that delivers excitation energy to photosystem II, will be discussed. This dissertation will also discuss the role of vibronic coherences, involving organic surface ligands, in the hot carrier cooling process of CdSe semiconductor quantum dots (QDs). Optical broadband two-dimensional electronic spectroscopy (2DES) with ultrashort pulses has been employed on these systems to characterize nonradiative decay and energy transfer pathways in PCP and CdSe QDs. Understanding the advantage gained by the organism through the use of coherent energy transfer mechanisms may enable the development of more efficient light harvesting materials for use in photovoltaic cells or in photocatalysis.
Download or read book Nanostructured Materials for Visible Light Photocatalysis written by Arpan Kumar Nayak and published by Elsevier. This book was released on 2021-10-10 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanostructured Materials for Visible Light Photocatalysis describes the various methods of synthesizing different classes of nanostructured materials that are used as photocatalysts for the degradation of organic hazardous dyes under visible light irradiation. The first three chapters include a general introduction, basic principles, mechanisms, and synthesis methods of nanomaterials for visible light photocatalysis. Recent advances in carbon, bismuth series, transition metal oxide and chalcogenides-based nanostructured materials for visible light photocatalysis are discussed. Later chapters describe the role of phosphides, nitrides, and rare earth-based nanostructured-based materials in visible light photocatalysis, as well as the characteristics, synthesis, and fabrication of photocatalysts. The role of doping, composites, defects, different facets, morphology of nanostructured materials and green technology for efficient dye removal under visible-light irradiation are also explored. Other topics covered include large-scale production of nanostructured materials, the challenges in present photocatalytic research, the future scope of nanostructured materials regarding environmental hazard remediation under visible light, and solar light harvesting. This book is a valuable reference to researchers and enables them to learn more about designing advanced nanostructured materials for wastewater treatment and visible-light irradiation. Covers all the recent developments of nanostructured photocatalytic materials Provides a clear overview of the mechanism of visible light photocatalysis and the controlled synthesis of nanostructured materials Assesses the major challenges of creating visible light photocatalysis systems at the nanoscale
Download or read book Nanomaterials in Industrial Chemistry written by Muhammad Faheem and published by CRC Press. This book was released on 2024-07-26 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive exploration of nanomaterials, offering insights into their diverse morphologies and applications. Chapters delve into the industrial potential of nanocellulose-based aerogels, the future of light-driven and UV-photodetector materials, and the use of functionalized nanomaterials for wastewater restoration. It explores the pivotal role of nanobiotechnology in water purification and introduces nanopharmaceuticals as a promising frontier in clinical medicine. The book addresses safety concerns related to occupational exposure to nanomaterials, highlighting hazards and toxicity. Additionally, it discusses the environmental effects of nanotechnology innovation. This multifaceted approach caters to professionals, researchers, and enthusiasts navigating the evolving landscape of nanomaterials.
Download or read book Active Plasmonic Nanomaterials written by Luciano De Sio and published by CRC Press. This book was released on 2015-06-24 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plasmonic nanoparticles (NPs) represent an outstanding class of nanomaterials that have the capability to localize light at the nanoscale by exploiting a phenomenon called localized plasmon resonance. The book is aimed at reviewing recent efforts devoted to utilize NPs in many research fields, such as photonics, optics, and plasmonics. In this fram
Download or read book Self Assembled Nanomaterials I written by Toshimi Shimizu and published by Springer Science & Business Media. This book was released on 2008-09-26 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text was ranked by ISI as having the Highest Impact Factor of all publications within Polymer Science. It is a collection of concise reports on the physics and chemistry of polymers.
Download or read book Applications of Nanomaterials in Agriculture Food Science and Medicine written by Bhat, Mohd Amin and published by IGI Global. This book was released on 2020-12-04 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: The uses of nanotechnologies continue to rise exponentially. Due to their multifaceted nature, nanomaterials have a vast amount of potential uses in various scientific professions. Professionals in sectors including agriculture, nutrition, and healthcare are discovering the numerous benefits that nanomaterials carry when applied to traditional practices. In order to understand the dynamic properties of nanomaterials and how to utilize them in specific fields, significant research is required. Applications of Nanomaterials in Agriculture, Food Science, and Medicine is an essential reference source that discusses the emerging development of nanotechnology in various sectors of the scientific community as well as the current benefits and future uses. Industries that the book covers include energy storage and renewable energy, environmental science and wastewater treatment, food and agriculture, and medicine and bioinformatics. This book is ideally designed for researchers, engineers, practitioners, industrialists, educators, strategists, policymakers, scientists, and students seeking coverage on the strategic role of nanomaterials in these imperative fields.
Download or read book Organic Nanomaterials written by Tomas Torres and published by John Wiley & Sons. This book was released on 2013-10-14 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discover a new generation of organic nanomaterials and their applications Recent developments in nanoscience and nanotechnology have given rise to a new generation of functional organic nanomaterials with controlled morphology and well-defined properties, which enable a broad range of useful applications. This book explores some of the most important of these organic nanomaterials, describing how they are synthesized and characterized. Moreover, the book explains how researchers have incorporated organic nanomaterials into devices for real-world applications. Featuring contributions from an international team of leading nanoscientists, Organic Nanomaterials is divided into five parts: Part One introduces the fundamentals of nanomaterials and self-assembled nanostructures Part Two examines carbon nanostructures—from fullerenes to carbon nanotubes to graphene—reporting on properties, theoretical studies, and applications Part Three investigates key aspects of some inorganic materials, self-assembled monolayers, organic field effect transistors, and molecular self-assembly at solid surfaces Part Four explores topics that involve both biological aspects and nanomaterials such as biofunctionalized surfaces Part Five offers detailed examples of how organic nanomaterials enhance sensors and molecular photovoltaics Most of the chapters end with a summary highlighting the key points. References at the end of each chapter guide readers to the growing body of original research reports and reviews in the field. Reflecting the interdisciplinary nature of organic nanomaterials, this book is recommended for researchers in chemistry, physics, materials science, polymer science, and chemical and materials engineering. All readers will learn the principles of synthesizing and characterizing new organic nanomaterials in order to support a broad range of exciting new applications.
Download or read book Nanomaterials Polymers and Devices written by E. S. W. Kong and published by John Wiley & Sons. This book was released on 2015-04-13 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: Providing an eclectic snapshot of the current state of the art and future implications of the field, Nanomaterials, Polymers, and Devices: Materials Functionalization and Device Fabrication presents topics grouped into three categorical focuses: The synthesis, mechanism and functionalization of nanomaterials, such as carbon nanotubes, graphene, silica, and quantum dots Various functional devices which properties and structures are tailored with emphasis on nanofabrication. Among discussed are light emitting diodes, nanophotonic, nano-optical, and photovoltaic devices Nanoelectronic devices, which include semiconductor, nanotube and nanowire-based electronics, single-walled carbon-nanotube based nanoelectronics, as well as thin-film transistors
