Investigation Into The Spectra Of Electro And Photo Luminescent Phosphors Activated By Rare Earth Elements
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Investigation Into The Spectra Of Electro And Photo Luminescent Phosphors Activated By Rare Earth Elements
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Author : V. E. Oranovski
language : en
Publisher:
Release Date : 1965
Investigation Into The Spectra Of Electro And Photo Luminescent Phosphors Activated By Rare Earth Elements written by V. E. Oranovski and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1965 with categories.
New Generation Of Europium And Terbium Activated Phosphors
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Author : Mihail Nazarov
language : en
Publisher: CRC Press
Release Date : 2011-09-02
New Generation Of Europium And Terbium Activated Phosphors written by Mihail Nazarov and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-09-02 with Science categories.
This book concentrates on the luminescence and structural properties of the new generation of europium and terbium activated phosphors, associated phenomena, and related topics, from basic principles to the most recent discoveries. It summarizes the present state of the art in this rapidly growing field. The authors describe recent developments in the areas of rare earth doped phosphors and of some new materials or well-known materials with improved properties that open up new possibilities. The areas of focus include X-ray phosphors, phosphors for light-emitting devices, emissive displays, and fluorescent lamps. The book comprises theoretical and experimental analysis of various properties of phosphors, research methods and preparation techniques, and some promising applications.
Luminescence
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Author : Ratnesh Tiwari
language : en
Publisher: Walter de Gruyter GmbH & Co KG
Release Date : 2021-12-20
Luminescence written by Ratnesh Tiwari and has been published by Walter de Gruyter GmbH & Co KG this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-12-20 with Science categories.
Phosphors are often consisting of transition-metal compounds or rare-earth compounds, with the most common application being displays and fluorescent light. This book will guide the reader through the latest developments in thermo-, electro-, mechano- and bioluminescence of rare earth phosphors and crystals. Also, the effect of doping will be discussed.
Rare Earth Activated Phosphors
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Author : Vikas Dubey
language : en
Publisher: Elsevier
Release Date : 2022-06-29
Rare Earth Activated Phosphors written by Vikas Dubey and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-06-29 with Science categories.
Rare-Earth-Activated Phosphors: Chemistry and Applications outlines important fundamentals and properties and explores successful application that address key problems across the sciences. Sections introduce phosphors and luminescence, explore their properties, characteristics, synthesis and degradation and highlight key applications across telecommunications, lighting, electroluminescent devices, (bio-)analytical sensors, bio-imaging set-ups, drug delivery and sustainable energy devices. Drawing on the knowledge of an expert team of contributors, the book provides useful insight into successfully harnessing the properties of rare earth activated phosphors for a range of important applications. Rare-earth nano-phosphors offer an interesting array of characteristics, including sharp emission bands, exceptional optical damage thresholds, low toxicity, high selectivity and stability, and long luminescence lifetimes. Understanding these properties can help researchers effectively manipulate them for a range of important applications. Provides a good introduction to the useful properties and characteristics of rare earth activated phosphors Analyzes the use of rare earth activated phosphors for a broad variety of important applications, bridging the gap between theory and application Encourages further discourse and development for improving the energy-efficiency of devices based on rare earth activated phosphors
Luminescence Centers Of Rare Earth Ions In Crystal Phosphors
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Author : M. D. Galanin
language : en
Publisher:
Release Date : 1988
Luminescence Centers Of Rare Earth Ions In Crystal Phosphors written by M. D. Galanin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Science categories.
Technical Abstract Bulletin
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Author :
language : en
Publisher:
Release Date :
Technical Abstract Bulletin written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with Science categories.
Luminescence Investigation Of Rare Earth Activated Silcates Phosphors
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Author : Kokode N S
language : en
Publisher: LAP Lambert Academic Publishing
Release Date : 2015-06-30
Luminescence Investigation Of Rare Earth Activated Silcates Phosphors written by Kokode N S and has been published by LAP Lambert Academic Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-06-30 with categories.
Recent developments in field of luminescent materials show the lot of interest in this area.The silicates are the largest, the most interesting and the most complicated class of minerals than any other minerals. Silicate materials are useful in may applications of technological importance. In the present work photo luminescence investigation of rare earth activated silicate based phosphor were studied.
Phosphors
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Author : Sanjay J. Dhoble
language : en
Publisher: CRC Press
Release Date : 2018-05-11
Phosphors written by Sanjay J. Dhoble and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-05-11 with Science categories.
Rare earth–doped luminescent materials play an integral role in modern life because of their tremendous applications ranging from scintillators, color displays, fluorescent lamps, and intensifying screens to dosimetry of ionizing radiations. Written and edited by prominent luminescence researchers, this book details cutting-edge research on luminescence materials and is illustrated throughout with excellent figures and references. It will appeal to anyone involved in luminescence research and its applications, especially advanced undergraduate-, graduate-, and postgraduate-level students of spectroscopy, solid state physics, luminescence, material synthesis, and optical properties and researchers working on the synthesis of optical materials, the characterization of luminescence materials, solid state lighting, radiation dosimetry luminescence, and phosphor applications.
Soviet Researches On Luminescence
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Author : D. V. Skobel tsyn
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-11
Soviet Researches On Luminescence written by D. V. Skobel tsyn and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-11 with Science categories.
It is well known that luminescence is the term used to describe the excess radiation from a body over and above the thermal radiation and persisting for a time which greatly exceeds the period of a light vibration. The first half of this definition, proposed by Wiedemann, distinguishes luminescence from equilibrium thermal radi ation; the second half, introduced by Vavilov, distinguishes luminescence from various forms of scattering and from induced radiation, such as Vavilov-Cherenkov radiation, etc. Distinctions are made between photo-, cathodo-, x-ray-, and other forms ofluminescence, depending on how energy is introduced into the luminescent body. Electroluminescence is the name given to that form of fluorescence in which the radiating body receives energy directly from an electric field. It should be noted that luminescence under the influence of cathode rays is not called electroluminescence, because in this case the necessary energy is not supplied directly from the electric field to the radiating body but by means of extraneous electrons. Electroluminescence of gaseous bodies (radiation from a gas discharge) has been known for a long time and is widely used in luminescent lamps and gas discharge tubes. In 1923 Losev [1J observed radiation from silicon carbide crystals when a voltage was applied to them di rectly.
Red Phosphors For W Led Applications
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Author : John Peter
language : en
Publisher: GRIN Verlag
Release Date : 2015-09-09
Red Phosphors For W Led Applications written by John Peter and has been published by GRIN Verlag this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-09-09 with Science categories.
Project Report from the year 2015 in the subject Physics - Optics, ST Anne's College Of Engineering And Technology (St. Anne’s College of Engineering and Technology, Panruti, Tamilnadu, India), language: English, abstract: Trivalent rare-earth-ion-activated molybdate based phosphors have attracted great attention for solid-state lighting applications by virtue of their long lifetimes, and efficient luminescence property. The rare-earth ions are represented by a partly filled 4f shell that is completely shielded by 5s2 and 5p6 orbitals. Therefore, emission transitions provide sharp intense lines in the optical spectra [1, 2]. The use of rare-earth element-based phosphor, based on ‘‘line-type’’ f–f transitions, can narrow the emissions to the visible range, resulting in high efficiency and a high-lumen equivalence. In recent years, a flourishing care is concentrated on Li3Ba2Gd3-x(MoO4)8 host matrix for luminescent ions in the interest of their excellent chemical and thermal stability and favourable luminescence characteristics compared to the sulfide- and nitride-based materials. Moreover, these are environmentally friendly as no toxic gases like sulphide are given out. Li3Ba2Gd3-x(MoO4)8 occur in monoclinic crystal system with space group C2/c in a disordered structure [3]. For this research paper, a series of Li3Ba2Gd3–xPrx (MoO4)8 (x = 0.01, 0.03, 0.05, 0.07and 0.09 mol) and Li3Ba2Gd3–xSmx (MoO4)8 (x = 0.02, 0.04, 0.06, 0.08 and 0.10 mol) red phosphors were synthesized by conventional solid state reaction method.