Luminescence Studies of CaTiO3 Nano Powders PDF Download
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Author: Dr. B. M. Manohara,
Publisher: Nitya Publications
ISBN: 8194550467
Category : Science
Languages : en
Pages : 133
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Book Description
Synthesis of nanoparticles consisting of two major routes, namely physical and chemical routes. In physical route one may nsider ‘top-down’ approach which starts from solid and confining it to a limited size. On the other hand, one may consider ‘bottom-up’ approach which starts from molecular system and expands its size. In case of chemical route, the wet chemical technique for the synthesis of nanoparticles includes sol-gel, combustion, co- recipitation, hydrothermal, microwave etc. By conventional solid state route, it is not possible to obtain a nano sized powder because initial sizes of the reactants are much larger. A major challenge encountered in the synthesis of nanoparticles is the poor control over stoichiometry at the nano level. Although the solid state route is simple, this technique suffers from major drawbacks like weak reactivity of the startingmaterials and the poor homogeneity of the product.
Author: Dr. B. M. Manohara,
Publisher: Nitya Publications
ISBN: 8194550467
Category : Science
Languages : en
Pages : 133
Get Book Here
Book Description
Synthesis of nanoparticles consisting of two major routes, namely physical and chemical routes. In physical route one may nsider ‘top-down’ approach which starts from solid and confining it to a limited size. On the other hand, one may consider ‘bottom-up’ approach which starts from molecular system and expands its size. In case of chemical route, the wet chemical technique for the synthesis of nanoparticles includes sol-gel, combustion, co- recipitation, hydrothermal, microwave etc. By conventional solid state route, it is not possible to obtain a nano sized powder because initial sizes of the reactants are much larger. A major challenge encountered in the synthesis of nanoparticles is the poor control over stoichiometry at the nano level. Although the solid state route is simple, this technique suffers from major drawbacks like weak reactivity of the startingmaterials and the poor homogeneity of the product.
Author: Sam Zhang
Publisher: CRC Press
ISBN: 1315354349
Category : Science
Languages : en
Pages : 626
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Book Description
Advances in Magnetic Materials: Processing, Properties, and Performance discusses recent developments of magnetic materials, including fabrication, characterization and applications in the aerospace, biomedical, and semiconductors industries. With contributions by international professionals who possess broad and varied expertise, this volume encompasses both bulk materials and thin films and coatings for magnetic applications. A timely reference book that describes such things as ferromagnetism, nanomaterials, and Fe, ZnO, and Co-based materials, Advances in Magnetic Materials is an ideal text for students, researchers, and professionals working in materials science. Describes recent developments of magnetic materials, including fabrication, characterization, and applications Addresses a variety of industrial applications, such as aerospace, biomedical, and semiconductors Discusses bulk materials and thin films and coatings Covers ferromagnetism, nanomaterials, Fe, ZnO, and Co-based materials Contains the contributions of international professionals with broad and varied expertise Covers a holistic range of magnetic materials in various aspects of process, properties, and performance
Author: Sanjay J. Dhoble
Publisher: CRC Press
ISBN: 1000916758
Category : Science
Languages : en
Pages : 193
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Book Description
Titanate-centered perovskites are an important class of crystalline materials with outstanding structural and property tunability. Recently, titanate perovskites have been extensively investigated as new-generation materials for various energy-allied applications, together with photovoltaic cells, light emitting diodes, photo detectors and lasers, for their exceptional optical and electronic properties. With increasing attention on the development of nanotechnology and multidisciplinary research, scientists have been trying to downscale the titanate perovskite structures into the nanoregime, so as to further boost their performances and applications. Compared with bulk perovskite materials, perovskite nanomaterials exhibit a series of advantages, such as fabrication of thin films and flexible devices and PNMs display high process ability. Perovskite nanomaterials feature rich and controllable facets and active sites. Besides benefiting from the small-size effect and quantum effect, perovskite nanomaterials are endowed with outstanding photo-electromagnetic properties. Furthermore, the applications of titanate-centered perovskites in the fields of energy, environment, WLEDs, forensic science and piezoelectric devices will be reviewed. This book will also discuss the possible solutions to the problems in their application by optimizing their compositions, structures and preparation methods. This book will systematically summarize the key points in the design, synthesis, property improvements and application expansion of titanate-centered perovskites. The different perovskite structures and the rational design of functional materials will be discussed in detail. The advantages, disadvantages and experimental parameters of different synthesis methods for titanate-centered perovskites will be reviewed. This book will also summarize some practical experiences in selecting suitable elements and designing multifunctional materials according to the mechanisms and principles of elements promoting the properties of perovskites by covering almost last 20 years of literature. At the end of this book, we will provide an outlook on the opportunities and challenges in the view of development in titanate-centered perovskites The inclusive effectiveness and practicality of prospective titanate energy materials and systems are directly connected to many materials-related factors. This volume of book features totally seven sections that envelop a wide range of titanate energy materials. They cover the modern developments involving materials for alternative and renewable energy sources and systems, including energy storage and batteries, nanocomposites, hydrogen, solar, wind, geothermal, biomass and nuclear. The book is a significant orientation for students and researchers (from academics, but also industry) interested in understanding the properties of emerging titanate energy materials and challenges in the recent era.
Author: Vijay Kumar
Publisher: Springer Nature
ISBN: 9819941458
Category : Science
Languages : en
Pages : 405
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Book Description
This book highlights the synthesis, luminescence, and applications of rare earth-doped phosphors materials for solid-state lighting. Solid-state lighting is turning into a leading technology in the lighting industry, permitting improvement in the fields from architectural to domestic applications. Driven with the aid of using ongoing multi-field research, solid-state lighting needs an improvement of various technologies: efficient and reliable light-emitting devices, devices for new functionalities, and optical solutions for beam shaping. Noteworthy research endeavors were aimed to find out eco-friendly, better performance, cost, and energy-efficient phosphor materials for the application in solid-state lighting devices. Power phosphor materials with advanced optical and photoluminescence properties in a wide range of areas have shared the research efforts in this sector aimed in the direction of achieving better material features. Rare earth ion-doped phosphor materials have been the subject of scientific interest because of their significant applications in a variety of fields such as display devices, temperature sensors, solar cells, bio-imaging, and optoelectronics devices. This book covers the broad aspects of organic and inorganic materials based on phosphor materials and is beneficial to researchers involved in these areas. This book is specially designed to provide an introductory concept of luminescent materials, particularly man-made (artificial) phosphors in a language comprehensible to beginners and students. The book also includes some new materials with promising technologies and upgraded properties that expose new potential possibilities are also highlighted.
Author: Ru-Shi Liu
Publisher: Springer
ISBN: 9811015902
Category : Science
Languages : en
Pages : 522
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Book Description
This book introduces readers to fundamental information on phosphor and quantum dots. It comprehensively reviews the latest research advances in and applications of fluoride phosphors, oxide phosphors, nitridosilicate phosphors and various quantum dot materials. Phosphors and phosphor-based quantum dot materials have recently gained considerable scientific interest due to their wide range of applications in lighting, displays, medical and telecommunication technologies. This work will be of great interest to researchers and graduate students in materials sciences and chemistry who wish to learn more about the principles, synthesis and analysis of phosphors and quantum dot materials.
Author: Indrani Coondoo
Publisher: BoD – Books on Demand
ISBN: 9533074396
Category : Science
Languages : en
Pages : 467
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Book Description
Ferroelectric materials exhibit a wide spectrum of functional properties, including switchable polarization, piezoelectricity, high non-linear optical activity, pyroelectricity, and non-linear dielectric behaviour. These properties are crucial for application in electronic devices such as sensors, microactuators, infrared detectors, microwave phase filters and, non-volatile memories. This unique combination of properties of ferroelectric materials has attracted researchers and engineers for a long time. This book reviews a wide range of diverse topics related to the phenomenon of ferroelectricity (in the bulk as well as thin film form) and provides a forum for scientists, engineers, and students working in this field. The present book containing 24 chapters is a result of contributions of experts from international scientific community working in different aspects of ferroelectricity related to experimental and theoretical work aimed at the understanding of ferroelectricity and their utilization in devices. It provides an up-to-date insightful coverage to the recent advances in the synthesis, characterization, functional properties and potential device applications in specialized areas.
Author: Yongguan Zhu
Publisher: CRC Press
ISBN: 1351046616
Category : Technology & Engineering
Languages : en
Pages : 715
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Book Description
The Congress "Arsenic in the Environment" offers an international, multi- and interdisciplinary discussion platform for research and innovation aimed towards a holistic solution to the problem posed by the environmental toxin arsenic, with significant societal impact. The Congress has focused on cutting edge and breakthrough research in physical, chemical, toxicological, medical, agricultural and other specific issues on arsenic across a broader environmental realm. The Biennial Congress "Arsenic in the Environment" was first organized in Mexico City (As2006) followed by As2008 in Valencia (Spain), As2010 in Tainan (Chinese Taiwan), As2012 in Cairns (Australia), As2014 in Buenos Aires (Argentina) and As2016 in Stockholm (Sweden). The 7th International Congress As2018 was held July 1-6, 2018, in Beijing, P. R. China and was entitled Environmental Arsenic in a Changing World. The Congress addressed the broader context of arsenic research aligned on the following themes: Theme 1: Arsenic Behaviour in Changing Environmental Media Theme 2: Arsenic in a Changing Agricultural Ecosystem Theme 3: Health Impacts of Environmental Arsenic Theme 4: Technologies for Arsenic Immobilization and Clean Water Blueprints Theme 5: Sustainable Mitigation and Management Arsenic in drinking water (mainly groundwater) has emerged as an issue of global health concern. During last decade, the presence of arsenic in rice, possibly also other food of plant origins, has attained increasing attention. This is particularly true in the Asian countries, where the use of high arsenic groundwater as source of irrigation water and drinking water has been flagged as severe health concern. This has been accentuated by elevating arsenic concentrations in deep groundwater recharged from shallow high arsenic groundwater, which may have further detrimental effects on public health. Notably, China has been in the forefront of research on arsenic biogeochemical cycling, health effects of arsenic, technologies for arsenic removal, and sustainable mitigation measures. The Congress has attracted professionals involved in different segments of interdisciplinary research on arsenic in an open forum, and strengthened relations between academia, research institutions, government and non-governmental agencies, industries, and civil society organizations to share an optimal ambience for exchange of knowledge.
Author: S.V. Moharil
Publisher: CRC Press
ISBN: 1000966267
Category : Technology & Engineering
Languages : en
Pages : 325
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Book Description
The focus of the book is to explore metal oxides exhibiting a high optical transmittance as applicable in the field of light-emitting diodes (LEDs), photo-catalysts, and so forth. It provides exposure to structural and chemical parameters of optically active metal oxides as a phosphor, innovative and currently demanded synthesis methods, and their proper characterization. It further covers applications such as optical thermometry, scintillation, anti-counterfeit, solid-state lighting and spectral modifier for solar cells, VUV application, and long persistent light emission phenomenon. Features: Reviews selection of structurally and functionally active materials for effective synthesis of metal oxides Exclusively covers large number of areas of applications of the luminescent metal oxides Cover various aspects of metal oxide research including synthesis and applications Includes chapters on synthesis-related predictions using machine learning Discusses radiation dosimetry and bio-imaging aspects This book is aimed at researchers and graduate students in materials science and phosphor technology.
Author: Luciana Reyes Pires Kassab
Publisher: Elsevier
ISBN: 0128183977
Category : Technology & Engineering
Languages : en
Pages : 298
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Book Description
Nanocomposites for Photonic and Electronic Applications addresses a range of aspects of different nanocomposites and their possible applications to illustrate the techniques used to prepare and characterize them. In addition, the book discusses possible optical, electronic, biophotonic, photonic and renewable energy applications, presenting a panorama of current research in the field of nanostructures for photonic applications. This is an important reference source for academics and industry engineers who are looking to learn more about how nanocomposites can be used to make cheaper, more efficient products in the electronic and photonic fields. - Explores the use of different types of amorphous and crystalline nanocomposites based on fluorides, tellurite, borates and lasers - Discusses the applications of nanocomposites for photonics, biophotonics and renewable energy applications - Assesses the advantages and disadvantages of using different types of nanocomposite in the design of different electronic and photonic products
Author: Osamu Hanaizumi
Publisher: Trans Tech Publications Ltd
ISBN: 3038136824
Category : Technology & Engineering
Languages : en
Pages : 312
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Book Description
Selected, peer reviewed papers from the 6th International Symposium on Silicon Science and 2nd International Conference on Advanced Micro-Device Engineering, December 9-10, 2010, Kiryu City Performing Arts Center, Kiryu, Japan
