Download or read book Chemically Tunable Colloidal Photonic Crystals written by André C. Arsenault and published by . This book was released on 2007 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photonic crystals are a novel class of materials which experience a spatially periodic modulation in their refractive index. A periodicity at the length scale of the wavelength of photons can exert an exquisite control over the flow of light passing through these materials. In this thesis I explore colloidal photonic crystals fabricated through bottom-up self-assembly techniques, and probe how their properties can be tuned through chemical means.The next section of my thesis describes the synthesis and properties of porous and elastic photonic crystals. These materials can be compressed with small forces, generating concomitant changes in optical properties. This mechanical response was used to image microstructured stamps as well as human fingerprints. The porous framework of the material, on the other hand, was used to house luminescent nanoclusters. The interplay of photoluminescence and the modified photonic density of states due to the photonic crystal resulted in highly tunable light emission.The thesis follows with a section on "smart" planar defects within colloidal photonic crystals. The defects are synthesized by layer-by-layer electrostatic self-assembly, a method with incredible compositional diversity. Sensors could thus be created, responsive to organic vapors, light, temperature, redox agents, and biochemically relevant molecules such as DNA.The final section of my thesis explores the use of colloidal photonic crystal templates for confined self-assembly processes. I first looked at polyelectrolyte self-assembly in these confines, and found a dramatic influence on the deposition process. I then looked at block copolymer self-assembly in these spaces, and found that the proximity of interfaces in the structure could generate unprecedented nanostructures.The first section of my thesis deals with metallopolymer-based swellable photonic crystals. Exposure to stimuli such as solvents, vapors, and redox agents can affect the volume of the metallopolymer component and modulate reflected colors from the photonic crystal. In addition, the redox-activity of these materials has allowed their incorporation into electrochemical cells which could form the basis of next generation color displays.
Download or read book Organic and Hybrid Photonic Crystals written by Davide Comoretto and published by Springer. This book was released on 2015-07-20 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a multidisciplinary perspective (ranging from chemistry to physics and biology) of the current research and applications of organic and hybrid photonic crystals. The authors detail the chemical and physical tools used to develop organic photonic crystals, explain methods for engineering new nano-structures, and propose novel physical phenomena or technological applications based on such materials. Organic and Hybrid Photonic Crystal lasers, sensors, photovoltaic devices and stimuli responsive devices are discussed.
Download or read book Photonic Crystals written by Kurt Busch and published by John Wiley & Sons. This book was released on 2006-05-12 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: The majority of the contributions in this topically edited book stems from the priority program SPP 1113 "Photonische Kristalle" run by the Deutsche Forschungsgemeinschaft (DFG), resulting in a survey of the current state of photonic crystal research in Germany. The first part of the book describes methods for the theoretical analysis of their optical properties as well as the results. The main part is dedicated to the fabrication, characterization and modeling of two- and three-dimensional photonic crystals, while the final section presents a wide spectrum of applications: gas sensors, micro-lasers, and photonic crystal fibers. Illustrated in full color, this book is not only of interest to advanced students and researchers in physics, electrical engineering, and material science, but also to company R&D departments involved in photonic crystal-related technological developments.
Download or read book Photonic Crystals written by Qihuang Gong and published by CRC Press. This book was released on 2014-02-06 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a broad overview of photonic crystals and, as the title suggests, covers their principles and applications. It is written from a physics point of view with an emphasis on materials science. Equations are well explained and often completely avoided to increase the readability of the book. The book is divided into eight chapters, starting with a brief introduction. The second chapter deals with different dimensionalities of the photonic crystals and their properties. The third chapter is very interestingly written and provides a survey of the various synthesis methods used for production of photonic crystals, including chemical routes, lithography, and self-assembly of colloidal photonic crystals. Chapters 4–8 constitute the bulk of the book and provide examples of applications of these photonic crystals. Chapter 4 offers a good explanation of optical switching. Bandgap and defect mode switching are also brought into focus along with many other mechanisms—14 different switching mechanisms in all, including thermal, electro, and magneto switching. Frequency tuning of photonic crystal filters with special attention to nanosize photonic crystals is illustrated, providing a direct perspective on applications of these materials in integrated photonic circuits. The transition from chapter 5 to 6 dealing with photonic crystal lasers is smooth, especially after a clear description of frequency tuning. Here, one- to three-dimensional photonic lasers are explained along with laser oscillations produced by a variety of microcavity methods. Metallodielectric and liquid-crystal photonic lasers are equally well illustrated. Chapter 7 introduces logic devices based on photonic crystals. This chapter clearly explains, with the help of simple illustrations, how to obtain AND, OR, and XOR logic gates. Chapter 8 concludes the book by presenting possible applications, including gas, chemical, fluid, and cell sensing; their workings are very well described from a fundamental point of view. The diagrams and illustrations are appropriate and eye catching. There are ample references; thus readers are able to find more detailed information to satisfy their curiosity if the book does not suffice. Even though the introduction provides basics of these photonic crystals, I do get the impression that the bigger picture is missing. A nonexpert may not understand the direct application of such materials right from the beginning of the book. A flowchart or a diagram of these photonic crystals, illustrating applications in daily life at the beginning of the book, could attract a broader readership. In this regard, I believe that this book is most adapted to physicists with a materials science background or vice versa. However, one should take into consideration that the principles of photonic crystals cannot be explained without physics, and therefore the quality of this book remains intact and could very well serve as a textbook for future physicists.
Download or read book Responsive Photonic Nanostructures written by Yadong Yin and published by Royal Society of Chemistry. This book was released on 2013 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photonic crystal nanostructures, whose photonic properties can be tuned in response to external stimuli, are desired for a wide range of applications in colour displays, biological and chemical sensors, and inks and paints. Until now there is no single resource which gives a complete overview of these exciting smart materials. esponsive Photonic Nanostructures: Smart Nanoscale Optical Materials details the fabrication of photonic crystal structures through self-assembly approaches, general strategies and approaches for creating responsive photonic structures for different responsive systems such as chemical, optical, electrical and magnetic as well as their applications. With contributions from leading experts in the field, this comprehensive summary on responsive photonic nanostructures is suitable for postgraduates and researchers in academia and industry interested in smart materials and their potential applications.
Download or read book The Chemistry of Nanostructured Materials written by Peidong Yang and published by World Scientific. This book was released on 2011 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a sequel to the first volume of The Chemistry of Nanostructured Materials. It covers the most exciting developments in the nanostructured materials field for the past five to ten years, with a particular focus on their applications in energy conversion and energy storage. Prominent authors of recognized authority in the field contribute their expertise in the review chapters.
Download or read book Nanomaterials and Nanoarchitectures written by M. Bardosova and published by Springer. This book was released on 2015-08-31 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: The current work consists of nine contributions describing recent progress in the interdisciplinary of Nanoscience, which involves physics, chemistry, engineering, biology and medicine and one essay outlining some important historical and socioeconomic factors pertaining to recent developments in nanoscale science and technology. All 10 chapters have been written by eminent experts in their respective fields. The authors employ the terms ‘nanomaterials’ as building blocks of a range of materials, ‘nanoarchitecture’ represents the design and ‘nanotechnology’ the means to produce a particular device or functionality. Two of the chapters are devoted to novel materials and two others focus on analyzing techniques, which can be used to enable molecular control of the film architecture. Additionally, the reader will find material devoted to photonic and hybrid plasmonic-photonic crystals as well as sections which address their applications, such as the use of plasmonic particles and nanostructures for new sensing concepts and ultrasensitive detection techniques. This work will be of interest to graduate students, researchers and practitioners alike.
Download or read book Micro and Nanophotonic Technologies written by Patrick Meyrueis and published by John Wiley & Sons. This book was released on 2017-03-20 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edited and authored by leading experts from top institutions in Europe, the US and Asia, this comprehensive overview of micro- and nanophotonics covers the physical and chemical fundamentals, while clearly focusing on the technologies and applications in industrial R&D. As such, the book reports on the four main areas of telecommunications and display technologies; light conversion and energy generation; light-based fabrication of materials; and micro- and nanophotonic devices in metrology and control.
Download or read book Colloidal Photonic Crystals Containing Copper Oxide and Silver Nanoparticles with Tunable Structural Colors written by Chun-Feng Lai and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this chapter, we investigated polystyrene (PS) colloidal photonic crystal (CPhC) colour films containing copper-oxide (CuO) nanoparticles (NPs) and silver (Ag) NPs and exhibiting tunable structural colours. PS CPhC colour films containing CuO-NPs and Ag-NPs were prepared through thermal-assisted self-assembly by using a gravitational sedimentation method. Doped CuO-NPs and Ag-NPs deposited on the bottom of the substrate and acted as black materials that absorb background and scattering light. Experimental results showed that brilliant structural colours were enhanced because of the absorption of incoherently scattered light, and colour saturation was increased by the distribution of metal NPs on PS CPhC surfaces. The brilliant structural colours of CuO-NPs/PS and Ag-NPs/PS hybrid CPhC colour films were based on the scattering absorption and Bragg diffraction theory. The reflection peaks of metal-NPs/PS hybrid CPhCs and pure PS CPhCs were measured by UV-Visible reflection spectrometry and theoretically calculated based on the Bragg diffraction law. Additionally, the structural colours of metal-NPs/PS hybrid CPhC colour films were assessed through colour measurements based on the Commission International d'Eclairage 1931 standard colourimetric system. Finally, this chapter exhibits a simple method to generate tunable structural colour of functional materials for numerous applications, such as in textile fabrics, bionic colours, catalysis, and paint.
Download or read book Photonic Materials for Sensing Biosensing and Display Devices written by Michael J. Serpe and published by Springer. This book was released on 2015-12-28 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the basics and applications of photonic materials. It focuses on the utility of these devices for sensing, biosensing, and displays. The book includes fundamental aspects with a particular focus on the application of photonic materials. The field of photonic materials is both a burgeoning, and mature field. There are new advances being made on a daily basis, all based on the fundamental roots set by work by those like Ozin, Thomas, Asher, and others.
Download or read book Nanochemistry written by Geoffrey A Ozin and published by Royal Society of Chemistry. This book was released on 2023-01-17 with total page 875 pages. Available in PDF, EPUB and Kindle. Book excerpt: International interest in nanoscience research has flourished in recent years, as it becomes an integral part in the development of future technologies. The diverse, interdisciplinary nature of nanoscience means effective communication between disciplines is pivotal in the successful utilization of the science. Nanochemistry: A Chemical Approach to Nanomaterials is the first textbook for teaching nanochemistry and adopts an interdisciplinary and comprehensive approach to the subject. It presents a basic chemical strategy for making nanomaterials and describes some of the principles of materials self-assembly over 'all' scales. It demonstrates how nanometre and micrometre scale building blocks (with a wide range of shapes, compositions and surface functionalities) can be coerced through chemistry to organize spontaneously into unprecedented structures, which can serve as tailored functional materials. Suggestions of new ways to tackle research problems and speculations on how to think about assembling the future of nanotechnology are given. Primarily designed for teaching, this book will appeal to graduate and advanced undergraduate students. It is well illustrated with graphical representations of the structure and form of nanomaterials and contains problem sets as well as other pedagogical features such as further reading, case studies and a comprehensive bibliography.
Download or read book Colloidal Quantum Dot Optoelectronics and Photovoltaics written by Gerasimos Konstantatos and published by Cambridge University Press. This book was released on 2013-11-07 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: Captures the most up-to-date research in the field, written in an accessible style by the world's leading experts.
Download or read book Liquid Crystal Colloids written by Igor Muševič and published by Springer. This book was released on 2017-05-14 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together the many concepts and discoveries in liquid crystal colloids contributed over the last twenty years and scattered across numerous articles and book chapters. It provides both a historical overview of the development of the field and a clear perspective on the future applications in photonics. The book covers all phenomena observed in liquid crystal colloids with an emphasis on experimental tools and applications of topology in condensed matter, as well as practical micro-photonics applications. It includes a number of spectacular manifestations of new topological phenomena not found or difficult to observe in other systems. Starting from the early works on nematic colloids, it explains the basics of topological defects in ordered media, charge and winding, and the elastic forces between colloidal particles in nematics. Following a detailed description of experimental methods, such as optical tweezing and particle tracking, the book eases the reader into the theoretical part, which deals with elastic deformation of nematic liquid crystals due to inclusions and surface alignment. This is discussed in the context of basic mean field Landau-de Gennes Q-tensor theory, with a brief explanation of the free-energy minimization numerical methods. There then follows an excursion into the topology of complex nematic colloidal structures, colloidal entanglement, knotting and linking. Nematic droplets, shells, handlebodies and chiral topological structures are addressed in separate chapters. The book concludes with an extensive chapter on the photonic properties of nematic dispersions, presenting the concept of integrated soft matter photonics and discussing the concepts of nematic and chiral nematic microlasers, surface-sensitive photonic devices and smectic microfibers. The text is complemented by a large bibliography, explanatory sketches and beautiful micrographs.
Download or read book Chemistry Of Nanostructured Materials The Volume Ii written by Peidong Yang and published by World Scientific. This book was released on 2011-01-04 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a sequel to the first volume of The Chemistry of Nanostructured Materials. It covers the most exciting developments in the nanostructured materials field for the past five to ten years, with a particular focus on their applications in energy conversion and energy storage. Prominent authors of recognized authority in the field contribute their expertise in the review chapters.
Download or read book Structure and Functional Properties of Colloidal Systems written by Roque Hidalgo-Alvarez and published by CRC Press. This book was released on 2009-11-18 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: Integrating fundamental research with the technical applications of this rapidly evolving field, Structure and Functional Properties of Colloidal Systems clearly presents the connections between structure and functional aspects in colloid and interface science. It explores the physical fundamentals of colloid science, new developments of synthesis
Download or read book Holographic Sensors written by Ali Kemal Yetisen and published by Springer. This book was released on 2014-12-03 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents a theoretical and experimental approach for the rapid fabrication, optimization and testing of holographic sensors for the quantification of pH, organic solvents, metal cations, and glucose in solutions. Developing non-invasive and reusable diagnostics sensors that can be easily manufactured will support the monitoring of high-risk individuals in any clinical or point-of-care setting. Sensor fabrication approaches outlined include silver-halide chemistry, laser ablation and photopolymerization. The sensors employ off-axis Bragg diffraction gratings of ordered silver nanoparticles and localized refractive index changes in poly (2-hydroxyethyl methacrylate) and polyacrylamide films. The sensors exhibited reversible Bragg peak shifts, and diffracted the spectrum of narrow-band light over the wavelength range λpeak ≈ 495-1100 nm. Clinical trials of glucose sensors in the urine samples of diabetic patients demonstrated that they offer superior performance compared to commercial high-throughput urinalysis devices. Lastly, a generic smartphone application to quantify colorimetric tests was developed and tested for both Android and iOS operating systems. The sensing platform and smartphone application may have implications for the development of low-cost, reusable and equipment-free point-of-care diagnostic devices.
Download or read book Advances in Colloid Science written by Mohammed Rahman and published by BoD – Books on Demand. This book was released on 2016-11-23 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book Advances in Colloid Science covers a number of up-to-date research advancement and progresses on colloids. It is a promising novel research field that has acknowledged a lot of interest recently. Here, the exciting scientific reports on cutting edge of science and technology associated to facile and economical synthesis, self-assembly, wettability, liquid crystallinity, physical properties, adoptions, morphology, control, drug design, structural properties, and prospective biological and optical implementation of newly designed colloids are concluded. This book presents an overview of recent and current colloidal study of fundamental and significant applications and implementation research worldwide. The colloidal science offers significant new and exciting challenges in biomedical, chemical, physical, and technological field. It is an important booklet for research organizations, governmental research centers, academic libraries, and R
