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The design and study of materials is a pivotal component to new discoveries in the various fields of science and technology. By better understanding the components and structures of materials, researchers can increase their applications across different industries. Emerging Synthesis Techniques for Luminescent Materials is a critical scholarly resource that explores the important field of emerging synthesis techniques of luminescent materials and its practical applications. Featuring coverage on a broad range of topics such as electroluminescence, glow curve analysis, and upconversion, this book is geared towards engineers, academics, researchers, students, professionals, and practitioners seeking current research on photoluminescence and the study of rare earth doped phosphors.
Polyaniline (PANI) is one of the most common and widely studied conducting polymers due to its excellent electro-chemical and electrical properties and its various applications in areas such as solar cell technologies, drug delivery, organic light emitting diodes (OLEDs), field-effect transistors (FETs), sensors, electro-chromic display, etc. PANI thin films play an important role in energy storage and conversion devices and show great potential in the supercapacitors owing to their high specific capacitance, high flexibility, and low cost. However, no in-depth information about this emerging PANI thin film technology is available. Properties, Techniques, and Applications of Polyaniline (PANI) Thin Films: Emerging Research and Opportunities is an essential publication that focuses on high-throughput synthesis of PANI thin films and their characterization techniques. The book also covers promising applications of PANI thin films and applications including solar cells. Featuring research on topics such as solar cells, post-synthesis treatments, and physiochemistry, this book is ideally designed for scientists, industry practitioners, engineers, managers, academicians, researchers, and students seeking coverage in the areas of polymeric applications.
Research on nanomaterials and their applications has become a trending area in various fields of study and practice. Its properties and abilities open a variety of scientific advancements that weren’t possible in past years. One specific area of research that is benefiting from the implementation of nanotechnology is the study of higher-dimensional compounds that include metallic atoms and other polytypes. There is vast potential in the study of how nanomaterials are currently being used for producing clusters in higher dimensions of space. Nanotechnologies and Clusters in the Spaces of Higher Dimension: Emerging Research and Opportunities provides emerging research exploring the theoretical and practical aspects of the production of intermetallic clusters in high dimensional spaces using nanotechnology. Featuring coverage on a broad range of topics such as intermetallic compounds, incident conservation law, and applied mathematics, this book is ideally designed for practitioners, scientists, engineers, researchers, educators, physicists, mathematicians, students, and academicians seeking current research on the use of nanomaterials in interdimensional science.
Energy saving and emission reduction are two of the greatest challenges facing the world today. Heat energy storage can save fuel and effectively use renewable sources. Heat energy storage is decisive for many energy saving measures and promises a reliance on non-traditional renewable energy sources. However, most recent research focused on material selection is scattered, disembodied, and sometimes contradictory. Technology Development for Adsorptive Heat Energy Converters: Emerging Research and Opportunities is an essential publication that offers a cohesive examination of methods of energy storage and conversion. Highlighting a broad range of topics including composite materials, operating principles, and structural characteristics, this book is ideally designed for developers, policymakers, researchers, academicians, students, and engineers in the fields of materials engineering, renewable energy, and environmental engineering.
It is pertinent to note that Luminescence phenomenon has once again occupied a central stage with the announcement of Nobel Prize in October 2014 to three Japanese scientists. The discovery of Galium Nitride proved to be a revolutionary step forward in creation of Blue LEDs. With the advent of LED lamps we now have more long-lasting and more efficient alternatives to older light sources. The Volume under reference consists of 9 Chapters, written by experts in the area of Luminescent Materials. First 5 Chapters are contributed as Review Papers and the last 4 are based on Research Papers.Chapter 1 is contributed by H.S. Virk, editor of this Volume, under the Title: History of Luminescence from Ancient to Modern Times. It traces the history of Luminescence based on E. Newton Harveys 770 page volume, which is a Classic in this area and narrates interesting stories from ancient cultures to modern times. The author has summarized the results of investigations of Bangalore Group under Sir CV Raman, the Indian Nobel Laureate of 1930. He has called The Physics Nobel Prize 2014, an Award for Luminescence.Chapter 2 is contributed by Sanjay Tiwari and JV Yakhmi on an important Topic: Recent Advances in Luminescent Nanomaterials for Solid State Lighting Applications. In fact, the recent Nobel Prize 2014 in Physics has been awarded for development of Luminescent Materials. The authors write: Luminescent nanomaterials have attracted great interest worldwide because of their unusual structural, optical and electronic properties as well as efforts to prepare miniaturised devices. By understanding and manipulating these properties, the performance of the resulting optical structure can be tailored for desired end-use applications.Chapter 3: Persistence Mechanisms and Applications of Long Afterglow Phosphors is contributed by NPL, New Dehli Group of V. Shankar and D. Haranath. The authors present a broad review of long persistence (LP) materials that are a special kind of photon energy storage and conversion materials. These are also known as long afterglow phosphors or long decay phosphors (LDP). This review Paper covers the recent advances in the blue, green and red-emitting LP phosphors/nanophosphors, persistence mechanism involved and the basic problems associated with their luminescence efficiency and persistence times.Chapter 4 by the Group of SK Omanwar: Exploring Synthesis Techniques for Yttrium Based Phosphors is focused on synthesis techniques developed by authors group. An inter-comparison of various techniques is listed and data presented in 9 tables. The synthesis methods of yttrium based phosphors in terms of the particle sizes, morphology, required temperatures for synthesis, cost required for synthesis, and required time, are presented in this review in detail.Chapter 5 is contributed by the team of BP Chandra, a renowned scholar in ML, under the title: Mechanoluminescence of Coloured Alkali Halide Crystals. It is one of the longest Chapters in this volume and focusses on both Theoretical and Experimental aspects of elastico-mechanoluminescence (EML), plastico-mechanoluminescence (PML) and fracto- mechanoluminescence (FML) of coloured alkali halide crystals in all details.Chapters 6 & 7 are contributed by an upcoming Group working under Dr Sanjay Dhoble of RTM university Nagpur. The authors investigate PL and TL properties of Eu2+ and Ce3+ Activated BaAlSi5O2N7 Phosphors in the 6th Chapter: Photoluminescence and Thermoluminescence Properties of Eu2+ and Ce3+ Activated BaAlSi5O2N7 Phosphors. TL dose response of BaAlSi6O2N7:Eu2+ Phosphor was found to be linear in the dose range from 5.8 mGy to 22.5 mGy, and above this, it goes to the saturation level. 7th chapter: Photoluminescence Properties of YAl3(BO3)4:RE3+ (RE=Ce/Dy/Tb) Phosphors is also focused on PL properties of phosphors. It was found that this phosphor acts as a potential color tunable UV phosphor for white light LED devices.Chapters 8 & 9 are contributed by Meera Ramrakhiani Group of RD University, Jabalpur. EL studies have been made by this group of young researchers in their contributed Papers: Electroluminescence in Organically Capped Cd1-x ZnxSe Chalcogenide Nanocrystals and Synthesis and Electroluminescence of Silver Doped ZnS/PVK Nanocomposite, respectively. It is interesting to note that research work on Nanocomposites has been recognized to boost the economy at global level. Effect of Silver doping and ZnS loading has been investigated on the performance of ZnS/PVK nanocomposite in the last Chapter of this Volume.
Luminescent materials with advanced performance are in the research hot spot with the recent technical developments of the display, lighting, and fluorescence labeling. Rare-earth-doped luminescent materials have been the focus of the research community owing to their wide applications in display devices, temperature sensors, solar cells, biomedical fields, optoelectronics, etc. This book covers the broad aspects of organic and inorganic materials based phosphors. The purpose of this book is to provide an up-to-date account of the present status and advancement of various techniques of synthesis of luminescent materials and their advanced applications in different areas. This book will cover all the experimental and theoretical approaches related to the rare-earth-doped luminescent materials. It also contains all the necessary information about the rare-earth-doped luminescent materials that were used in the past few years. In a nutshell, this book provides a unique platform to the newcomers who are planning to do research on rare-earthdoped luminescent materials as well as the researchers who are well established in this field.
The objective of the thesis is to synthesize and characterize the photoluminescent materials which exhibit extrinsic and intrinsic luminescence. For extrinsic luminescent materials, the objective was to tune the emission color of such rare earth doped materials via two methods: the conventional method Doping/Codoping by a rare earth ion and a new method called Controlled Reduction of Dopants. Doping was carried out for the rare earth ions such as Eu2+, Eu3+ doped gallates M2Ga2SiO7 (M:Sr,Ca) phases. But such method have drawbacks i.e. to achieve the control over the emission color either a change of the host lattice is required for doping or minimum of two rare earth ions are required for codoping. So a new technique called Controlled Reduction of Dopants was setup, where the emission color is tuned on the basis of the change of the oxidation state of the rare earth ion doped in the phase. This approach was illustrated with the progressive reduction of the red phosphor SrAl2O4:Eu3+ to green phosphor SrAl2O4:Eu2+ to target yellow luminescence. The other part of the thesis is focused upon self activated or intrinsic luminescent materials which show luminescence due to the intrinsic defects present in them. Stannates such as Mg2SnO4 was used as an example to illustrate this kind of intrinsic luminescence. This material exhibits another interesting character of exhibiting the both white long lasting luminescence and IR luminescence.
Recently, there has been an upsurge in microbial infections. Extensive and inappropriate usage of antimicrobial drugs in treating infections has led to the evolution of a resistant strain of microorganisms and irreversible immunosuppression in humans. Medical institutions and hospitals require solutions to combat these contagions in order to avoid future epidemics. Strategies to Overcome Superbug Invasions: Emerging Research and Opportunities highlights current research and potential strategies to prevent the emergence and re-emergence of drug-resistant pathogenic microbial strains. The content within this publication examines biosensing, global initiatives, nanomaterials, and alternative therapies. It is designed for microbiologists, biotechnologists, pharmacists, pharmacologists, virologists, formulation scientists, infectious disease specialists, government officials, policymakers, healthcare practitioners, doctors, nurses, hospital directors, researchers, surgeons, and academicians who are seeking research on innovative solutions for multi-drug-resistant infections.
In recent years, scientists and researchers have been continually searching for efficient and effective ways to harness solar energy for heat and power production. The development of solar technologies and thermal systems are a prevalent area of study, as they represent a vital step in fully optimizing the potential of solar energy. Unfortunately, research is still lacking on the development and application of these solar thermal systems. Modeling and Optimization of Solar Thermal Systems: Emerging Research and Opportunities provides emerging research exploring the theoretical and practical aspects of optimizing the performance of solar thermal technologies using multicriteria decision-making techniques. Featuring coverage on a broad range of topics such as parabolic trough collectors, hybrid solar energy, and thermal technology, this book is ideally designed for practitioners, engineers, academicians, researchers, students, industry professionals, and educators seeking current research on modern modeling methods of solar thermal systems.