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Saturday, July 18, 2020 | History

2 edition of investigation of solid alkali halide phosphors found in the catalog.

investigation of solid alkali halide phosphors

William John Fredericks

investigation of solid alkali halide phosphors

by William John Fredericks

  • 293 Want to read
  • 20 Currently reading

Published .
Written in English

    Subjects:
  • Phosphorus.,
  • Phosphorescence.,
  • Ions -- Migration and velocity.,
  • Magnetic measurements.

  • Edition Notes

    Statementby William John Fredericks.
    The Physical Object
    Pagination132 leaves, bound :
    Number of Pages132
    ID Numbers
    Open LibraryOL14297797M

    The thiohalides, also known as thiophosphoryl halides may be prepared from the trihalides by reaction with elemental sulfur in an inert solvent. The corresponding selenohalides are also known. The oxyhalides and thiohalides are significantly more electrophilic than the corresponding phosphorus. @article{osti_, title = {SENSITIZED LUMINESCENCE IN ALKALI HALIDE CRYSTALS ACTIVATED WITH MERCURY- LIKE ACTIVATORS AND MANGANESE}, author = {Schwartz, K K and Zirnitis, U A}, abstractNote = {The migration of energy between the impurity centers in alkali halide crystal phosphors is discussed. In the phosphor KCl-Tl, Pb the luminescence of the Pb/sup 2+/ ions .

    Other articles where Alkali halide is discussed: crystal: Ionic bonds: The alkali halide crystals are binaries of the AH type, where A is an alkali ion (lithium [Li], sodium, potassium, rubidium, or cesium) and H is a halide ion (fluorine, chlorine, bromine, or iodine). The crystals have ionic bonding, and each ion has six or eight.   Figure 4 shows the SEM images of Bi 4 Si 3 O 2 at% Eu 3+ phosphors prepared with microwave heating method and conventional solid state reaction method. In Cited by:

    That this relationship qualitatively describes the red shift can be seen from storage phosphors made of alkali halides such as RbBr:Tl + and RbI:Tl +. In these materials the PSL stimulation spectrum follows the absorption spectra of the F-centers which is reported at nm [28,29,47] for RbBr:Tl + and at nm [41] for RbI:Tl +. MAKING SOLID SOLUTIONS WITH ALKALI HALIDES (AND BREAKING THEM) John B. Brady Department ofGeology Smith College Northampton, MA [email protected] INTRODUCTION When two cations have the same charge and asimilar radius, amineral that contains one ofthe cations may contain the other aswell, thus forming asolid solution. Common File Size: 3MB.


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Investigation of solid alkali halide phosphors by William John Fredericks Download PDF EPUB FB2

An investigation of solid alkali halide phosphorsCited by: 1. Some theoretically derived parameters have also been included. All the important literature from to has been surveyed. Providing in a single volume all essential information on the physical properties of alkali halides, this book will be a valuable reference for solid-state physicists and materials by: A benchmark publication, the first edition of the Phosphor Handbook set the standard for references in this field.

Completely revised and updated, this second edition explores new and emerging fields such as nanophosphors, nanomaterials, UV phosphors, quantum cutters, plasma display phosphors, sol-gel and other wet phosphor preparation techniques, preparation through combustion 5/5(1). Download PDF: Sorry, we are unable to provide the full text but you may find it at the following location(s): (external link).

Its triplet structure (C1, C2, C3) has been confirmed in 24 combinations of impurity ions (Ga+, In+, Tl+, Sn2+, Pb2+) and alkali halide hosts with the NaCl and CsCl type : Atsuo Fukuda.

An attempt is made to interpret the properties of alkali halide‐thallium phosphors. The experimental basis of this interpretation is the work of Pohl and Cited by: Halide Vacancies Created by the Heterogeneous Reaction of OH with Investigation of solid alkali halide phosphors book Halide Single Crystals.

The Journal of Physical Chemistry A(12), DOI: /jps. Matthew A. Brown, Zhi Liu, Paul D. Ashby, Apurva Mehta, Ronald L. Grimm and John C. by: 3 Interpretation of the properties of alkali halide-thallium phosphors Frederick Seitz (Journal of Chemical Physics ) Investigation of some Ce[3+]-activated phosphors G.

Blasse, A. Bril (Journal of Chemical Physics ) Solid non-crystalline scintillation phosphors Marvin G. Schorr, Franklin L. Torney (Physical Review ). Investigation of the persistence of photostimulated luminescence of alkali halide phosphors.

Parfianovich, I.A., Yarovoi, P.N. Investigation of the persistence of photostimulated luminescence of alkali halide phosphors. Soviet Physics Jour – (). https://doi Author: I.

Parfianovich, P. Yarovoi. Sulfide-type phosphors are produced from pure zinc or cadmium sulfide or their mixtures by heating them together with small quantities (– percent) of copper, silver, gallium, or other salts (activators) and with about 2 percent of sodium or another alkali chloride at about 1,° C (1,° F).

The effect of heat treatment on a zinc oxide (ZnO)-reduced graphene oxide (rGO) nanocomposite is studied by Anton Landström et al. (article number ) to determine the effect on photocatalytic performance. Heat treatment in air is shown to be a facile and effective way to induce formation and healing of different types of defects in the.

He got his PhD in from Tokyo University for the theoretical study of optical line shapes of alkali-halide phosphors. He was research assistant at the Institute for Solid State Physics of Tokyo University from tostudying the optical properties of impurity centers Brand: Springer-Verlag Berlin Heidelberg.

Absolute Hydration Free Energy Scale for Alkali and Halide Ions Established from Simulations with a Polarizable Force Field. The Journal of Physical Chemistry B(7), Cited by: The solid state ML spectra of coloured alkali halide crystals can be assigned to deformation-induced excitation of halide ions inV2-centres or in other hole-centres.

Whereas, the intensity of EML and FML increases linearly with the applied pressure and the impact velocity, the intensity of PML increases quardratically with the applied pressure and the impact velocity because of the plastic flow of the Cited by: 2.

slip systems and peierls–nabarro stresses of dislocations in alkali–halides and silver–halides. low temperature dislocation motion and multiplication in crystals.

defect structure and high temperature plasticity of alkali halide solid solutions. creep and diffusion in cubic zr 1-x y x o 2-x/2. radiation effects. For many alkali halide crystals, the experimental studies have included X-ray emission and absorption spectra, as well as spectra of emission and reflection in the far ultraviolet.

However, in spite of the extensive investigations, some of the detailed features of the X-ray and optical absorption spectra remain : V.

Nemoshkalenko, V. Aleshin. Demand and Status of Display Phosphors workers in Germany investigated TI+ activated alkali halide Phosphors in details in the.

3 late s and s. A major turning point follows the development in s with compiled in Leverenz’s book. Data on the emission spectra in the book remains useful even today.

The earliest written account of a solid state luminescent material comes from a Chinese text published in the Song dynasty (– A.D.). The Buddhist sacred jewel, called "hashi-no-tama" in Japan, is alleged to be self-luminous and to shed a brilliant light on its Cited by: 1.

The magnetic properties of arsenic-rich mixed crystals Eu(As 1−x P x) 3 are similar to those of EuAs 3 up to about x = They order at T N in a second-order phase transition to an incommensurate transverse sine-wave phase which undergoes a lock-in transition at T L to a commensurate phase.

However, the character of the commensurate–incommensurate phase transition and the temperature. Mechanochemical preparation of nanocrystalline metal halide phosphors Article (Online only version available) in Journal of Materials Science 53(19) October with 88 Reads How we measure.

In addition, the alkali metal ions K +, Na +, and Li + were co-doped with BaBiPO:5% mole Sm 3+ phosphor, and their luminescence properties were discussed. The CIE color coordinates were calculated, and the emission color of the BaBiPO:5% mole Sm 3+, and the alkali co-doped phosphors were found to be placed in the orange-red by: 1.Alkali Halide Crystals Alkaline-Earth Fluorides Ternary Halide Compounds Excitonic-Like Luminescence Cesium Iodide Tungstate and Molybdate Phosphors Core-to-Valence Transitions First Evidence for Radiative Core-to-Valence Transitions Excitation Spectra Emission Spectra Experiment Theory Luminescence Kinetics Experimental Theoretical Investigations.An investigation of the excited absorption of x-irradiated phosphors of NaCl, KCl, and KBr, activated with In, Tl, Ag, Cu, Mn, Pb, and Cd was made.

Bivalent ions serve as effective trapping centers for the electronc. No diminution was observed in the activator absorption in the phosphors activated with In and Tl after the x irradiation.