Download or read book Gmelin Handbuch Der Anorganischen Chemie written by Karl Gürs and published by . This book was released on 1993-01-01 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: The volume opens a series dealing with the optical spectra of rare earth ions in inorganic solid rare earth compounds, host crystals, and glasses. Ions of the elements Ce to Lu in host materials serve as optically active centers in commercially used phosphors and in solid state lasers. Thus, much experimental and theoretical work on their spectra has been performed and is still in progress. Both a phenomenological description of the experimental spectra as well as the appropriate energy level diagrams are given. The topics of the present volume are the optical spectra of cerium and praseodymium ions in solid host materials. Especially the spectra of Pr3+ ions continue to be studied intensively because of laser activity in the visible region and the experimentally observed upconversion phenomena. The great variety of host materials includes praseodymium halids, PR3+-doped rare earth halides like LaF3 or LaCL3, fluorite, garnets, borates, phosphates, double nitrates or glasses.
Download or read book Optical Spectra of Ce and Pr written by Karl Gürs and published by Springer. This book was released on 1993-01-20 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: The volume opens a series dealing with the optical spectra of rare earth ions in inorganic solid rare earth compounds, host crystals, and glasses. Ions of the elements Ce to Lu in host materials serve as optically active centers in commercially used phosphors and in solid state lasers. Thus, much experimental and theoretical work on their spectra has been performed and is still in progress. Both a phenomenological description of the experimental spectra as well as the appropriate energy level diagrams are given. The topics of the present volume are the optical spectra of cerium and praseodymium ions in solid host materials. Especially the spectra of Pr3+ ions continue to be studied intensively because of laser activity in the visible region and the experimentally observed upconversion phenomena. The great variety of host materials includes praseodymium halids, PR3+-doped rare earth halides like LaF3 or LaCL3, fluorite, garnets, borates, phosphates, double nitrates or glasses.
Download or read book Gmelin Handbook of Inorganic and Organometallic Chemistry written by Karl Gürs and published by Springer-Verlag. This book was released on 1993 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optical Spectra of Ce and Pr written by Karl Gürs and published by Springer. This book was released on 1993-01-20 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: The volume opens a series dealing with the optical spectra of rare earth ions in inorganic solid rare earth compounds, host crystals, and glasses. Ions of the elements Ce to Lu in host materials serve as optically active centers in commercially used phosphors and in solid state lasers. Thus, much experimental and theoretical work on their spectra has been performed and is still in progress. Both a phenomenological description of the experimental spectra as well as the appropriate energy level diagrams are given. The topics of the present volume are the optical spectra of cerium and praseodymium ions in solid host materials. Especially the spectra of Pr3+ ions continue to be studied intensively because of laser activity in the visible region and the experimentally observed upconversion phenomena. The great variety of host materials includes praseodymium halids, PR3+-doped rare earth halides like LaF3 or LaCL3, fluorite, garnets, borates, phosphates, double nitrates or glasses.
Download or read book Optical Spectra of Ce and Pr written by Karl Gürs and published by Springer. This book was released on 1993-01-20 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: The volume opens a series dealing with the optical spectra of rare earth ions in inorganic solid rare earth compounds, host crystals, and glasses. Ions of the elements Ce to Lu in host materials serve as optically active centers in commercially used phosphors and in solid state lasers. Thus, much experimental and theoretical work on their spectra has been performed and is still in progress. Both a phenomenological description of the experimental spectra as well as the appropriate energy level diagrams are given. The topics of the present volume are the optical spectra of cerium and praseodymium ions in solid host materials. Especially the spectra of Pr3+ ions continue to be studied intensively because of laser activity in the visible region and the experimentally observed upconversion phenomena. The great variety of host materials includes praseodymium halids, PR3+-doped rare earth halides like LaF3 or LaCL3, fluorite, garnets, borates, phosphates, double nitrates or glasses.
Download or read book Gmelin Handbook of Inorganic and Organometallic Chemistry written by J. R. Forbes and published by . This book was released on 1993 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optical Absorption Spectra of Nd Ce Cu O Compounds written by Michieal L. Jones and published by . This book was released on 1990 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gmelin Handbook of Inorganic and Organometallic Chemistry written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sc Y La Lu written by Karl Gürs and published by . This book was released on 1997 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electronic Structure and Magneto Optical Properties of Solids written by Victor Antonov and published by Springer Science & Business Media. This book was released on 2004-02-29 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The book also presents the MO properties of f band ferromagnetic materials: Tm, Nd, Sm, Ce and La monochalcogenides, some important Yb compounds, SmB6 and Nd3S4, UFe2, U3X4 (X=P, As, Sb, Bi, Se and Te), UCu2P2, UCuP2, UCuAs2, UAsSe, URhA1, UGa2 and UPd3. Within the total group of alloys and compounds, we discuss their MO spectra in relationship to: the spin-orbit coupling strength, the magnitude of the local magnetic moment, the degree of hybridization in the bonding, the half-metallic character, or, equivalently, the Fermi level filling of the bandstructure, the intraband plasma frequency, and the influence of the crystal structure."--BOOK JACKET.
Download or read book Ground State Characteristics and Optical Spectra of Ce and Eu Octaethyl Bisporphyrinate Double Deckers written by and published by . This book was released on 1995 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ground state electronic structure and optical spectra of Ce(III), Ce(IV) and Eu(III) octaethyl bisporphyrin dimers (double deckers) are examined using the Intermediate Neglect of Differential Overlap (INDO/S) model and multireference configuration interaction (MRCI). The low energy electronic excited states of the dimers are interpreted in terms of their monomer contributions, and the charge transfer and excitonic character of the transitions are analyzed. Particular attention is focused on the nature of the near infrared band (NIR) that characterizes the spectra of the electron deficient bisporphyrin dimers, justifying its shift to higher energy as the ionic radii of the central ion decreases, and relating its broadness to the contribution of closely spaced electronic transitions that become allowed through vibronic coupling. The influence of an electric perturbation on the dimeric Ce(IV) and Eu(III) structures is used to explain their conductivity. The results are compared to those derived from resonant Raman spectroscopy, which show the importance of the vibrational fine structure in the assignment of the NIR band. jg p4.
Download or read book Atomic Energy Levels as Derived from the Analyses of Optical Spectra written by Charlotte Emma Moore and published by . This book was released on 1971 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optical Spectra of Ce and Pr written by Karl Gürs and published by Springer. This book was released on 1993-01-20 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: The volume opens a series dealing with the optical spectra of rare earth ions in inorganic solid rare earth compounds, host crystals, and glasses. Ions of the elements Ce to Lu in host materials serve as optically active centers in commercially used phosphors and in solid state lasers. Thus, much experimental and theoretical work on their spectra has been performed and is still in progress. Both a phenomenological description of the experimental spectra as well as the appropriate energy level diagrams are given. The topics of the present volume are the optical spectra of cerium and praseodymium ions in solid host materials. Especially the spectra of Pr3+ ions continue to be studied intensively because of laser activity in the visible region and the experimentally observed upconversion phenomena. The great variety of host materials includes praseodymium halids, PR3+-doped rare earth halides like LaF3 or LaCL3, fluorite, garnets, borates, phosphates, double nitrates or glasses.
Download or read book Optical Spectra of Ce and Pr written by Karl Gürs and published by Springer. This book was released on 1993-01-20 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: The volume opens a series dealing with the optical spectra of rare earth ions in inorganic solid rare earth compounds, host crystals, and glasses. Ions of the elements Ce to Lu in host materials serve as optically active centers in commercially used phosphors and in solid state lasers. Thus, much experimental and theoretical work on their spectra has been performed and is still in progress. Both a phenomenological description of the experimental spectra as well as the appropriate energy level diagrams are given. The topics of the present volume are the optical spectra of cerium and praseodymium ions in solid host materials. Especially the spectra of Pr3+ ions continue to be studied intensively because of laser activity in the visible region and the experimentally observed upconversion phenomena. The great variety of host materials includes praseodymium halids, PR3+-doped rare earth halides like LaF3 or LaCL3, fluorite, garnets, borates, phosphates, double nitrates or glasses.
Download or read book Optics and Spectroscopy written by and published by . This book was released on 2001 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Chemistry of the Actinide Elements written by G.T. Seaborg and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 905 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first edition of this work appeared almost thirty years ago, when, as we can see in retrospect, the study of the actinide elements was in its first bloom. Although the broad features of the chemistry of the actinide elements were by then quite well delineated, the treatment of the subject in the first edition was of necessity largely descriptive in nature. A detailed understanding of the chemical consequences of the characteristic presence of Sf electrons in most of the members of the actinide series was still for the future, and many of the systematic features of the actinide elements were only dimly apprehended. In the past thirty years all this has changed. The application of new spectroscopic techniques, which came into general use during this period, and new theoretical insights, which came from a better understanding of chemical bonding, inorganic chemistry, and solid state phenomena, were among the important factors that led to a great expansion and maturation in actinide element research and a large number of new and important findings. The first edition consisted of a serial description of the individual actinide elements, with a single chapter devoted to the six heaviest elements (lawrencium, the heaviest actinide, was yet to be discovered). Less than 15 % of the text was devoted to a consideration of the systematics of the actinide elements.
Download or read book Handbook on the Physics and Chemistry of Rare Earths written by and published by Elsevier. This book was released on 2011-09-22 with total page 559 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical spectroscopy has been instrumental in the discovery of many lanthanide elements. In return, these elements have always played a prominent role in lighting devices and light conversion technologies (Auer mantles, incandescent lamps, lasers, cathode-ray and plasma displays). They are also presently used in highly sensitive luminescent bio-analyses and cell imaging. This volume of the Handbook on the Physics and Chemistry of Rare Earths is entirely devoted to the photophysical properties of these elements. It is dedicated to the late Professor William T (Bill) Carnall who has pioneered the understanding of lanthanide spectra in the 1960’s and starts with a Dedication to this scientist. The following five chapters describe various aspects of lanthanide spectroscopy and its applications. Chapters 231 presents state-of-the-art theoretical calculations of lanthanide energy levels and transition intensities. It is followed by a review (Chapter 232) on both theoretical and experimental aspects of f-d transitions, a less well known field of lanthanide spectroscopy, yet very important for the design of new optical materials. Chapter 233 describes how confinement effects act on the photophysical properties of lanthanides when they are inserted into nanomaterials, including nanoparticles, nanosheets, nanowires, nanotubes, insulating and semiconductor nanocrystals. The use of lanthanide chelates for biomedical analyses is presented in Chapter 234; long lifetimes of the excited states of lanthanide ions allow the use of time-resolved spectroscopy, which leads to highly sensitive analyses devoid of background effect from the autofluorescence of the samples. The last review (Chapter 235) provides a comprehensive survey of near-infrared (NIR) emitting molecular probes and devices, spanning an all range of compounds, from simple chelates to macrocyclic complexes, heterometallic functional edifices, coordination polymers and other extended structures. Applications ranging from telecommunications to light-emitting diodes and biomedical analyses are assessed. - Provides a comprehensive look at optical spectroscopy and its applications- A volume in the continuing authoritative series which deals with the chemistry, materials science, physics and technology of the rare earth elements
