Roy. Expired - Lifetime Application number US581370A Inventor Herman C Froelich 53 065016) a generic energy bands model for phosphors consisting of semiconductors is presented. zinc sulfide phosphor. Zinc sulfide is usually produced from waste materials from other applications. The exact color given off by a phosphor also depends on the presence of small amounts of impurities. ョン, Cosmetic and pharmaceutical composition and method using green luminescent material, Phosphor powder and its production method, display panel, and flat display, METHOD FOR PREPARING SINGLE CRYSTALLINE ZnS POWDER FOR PHOSPHOR, Process for producing zinc sulfide particle, Electroluminescent phosphor powder with D50 value of less than 12 μm and method of making, Method of making electroluminescent phosphors with small particle sizes and powder with D50 value of no more than 10 micrometers, Image display employing filter coated phosphor particles, Oxide composite particle and method for its production, phosphor and method for its production, color filter and method for its manufacture, and color display, Phosphor and discharge lamp using the same, Zinc sulfide electroluminophores and method for production thereof, Manufacturing method of metal oxide coated phosphor for plasma display panel and phosphor for plasma display panel thereby, Pigment coated phosphor and process for manufacturing the same, Process for producing nanoscale yttrium aluminum garnet (YAG) fluorescent powders, Phosphor, cathode-ray tube, fluorescent lamp and radiation intensifying screen, Method for manufacturing phosphor-coated particles and method for forming cathodoluminescent screen using the same for field emission display, Metal hydroxy carbonate nanoparticle coated phosphor and method for preparing the same, Method for improving the performance of low pressure fluorescent discharge lamp which utilizes zinc silicate as a phosphor blend constituent, Phosphor and manufacturing method thereof, A preparing method for green fluorescent body based orthosilicate, Phosphor for display and field-emission display, Phosphors and method for treating the surface thereof, Phosphor and electron excited fluorescent display device using the same, Low voltage electron bean excitation phosphor display apparatus having brightness increased by reducing an oxide inevitably formed on a surface of an oxisulfide phosphor on manufacture, Written decision to grant a patent or to grant a registration (utility model), First payment of annual fees (during grant procedure), Renewal fee payment (event date is renewal date of database), Cancellation because of completion of term. In the presence of a relatively high percentage of lead or certain other agents and after the usual excitation, zinc sulfide phosphors become capable of storing luminescence energy at such a high potential that, unlike phosphorescence, it can be released only by radiation with the near infra-red. 979 zinc sulfide price products are offered for sale by suppliers on Alibaba.com, of which sulfide accounts for 9%, pharmaceutical intermediates accounts for 1%. To sign up for alerts, please log in first. If you need an account, please register here, Other studies have been made of the effect of the mixed crystal proportions in the ZnS–CdS–Cu. A copper- and/or manganese-activated zinc sulfide electroluminescent phosphor consisting essentially of particles of platelet-type ferroelectric material the surfaces which are coated with a layer of copper- and/or manganese-activated zinc sulfide electroluminescent phosphor of a thickness less than about 0.5 micrometers. sodium pyrosulfite used for … zinc sulfide phosphor. By adding other metals, phosphorescence in other regions of visible light can be obtained. : USDOE OSTI Identifier: 4226362 • To prepare a composite CdS-ZnS/zirconium-titaniu m phosphate (ZTP) … The phosphorescence and thermoluminescence of zinc sulfide phosphors are governed by the mechanism of electron trapping in the phosphor crystal lattice. American Elements manufactures ZnS:Cu,Al Phosphor in both research and bulk quantities. Full Record; Other Related Research; Authors: Smith, A W; Turkevich, J Publication Date: … Typical sources include smelter, slag, and pickle liquors. A wide variety of zinc sulfide price options are available to you, such as sulfide. G. F. J. Garlick and A. F. Gibson, Proc. Figure 2: Silver activated zinc sulfide powder viewed under UV illumination. glow in the dark pigment Introduction:. For example, zinc sulfide with silver metal as an impurity gives off a bluish glow and with copper metal as … Read "Effect of shock-wave treatment of zinc sulfide on properties of ZnS:Cu,Mn phosphor, Russian Journal of Applied Chemistry" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. f. Anorg. Patent US2951813A - Method of preparing an electroluminescent zinc sulfide phosphor (US 2,951,813 A); Owner: Anselm Wachtel; Filed: 12/24/1956; Est. f. Physik. Full Record; Other Related Research; Authors: Otomo, Y Publication Date: Sat Aug 01 00:00:00 EDT 1959 Research Org. priority date: 12/24/1956; Status: Expired due to … Chemie. OSTI.GOV Journal Article: ON THE CRYSTAL GROWTH OF ZINC SULFIDE PHOSPHOR. Silver activated zinc-sulfide, ZnS:Ag, is a free-flowing white fluorescent powder having exceedingly high scintillation efficiency. Zinc oxide dust which is not freshly formed is virtually innocuous. Protective Silica Coatings on Zinc‐Sulfide‐Based Phosphor Particles Guillermo R. Villalobos United States Naval Research Laboratory, Washington, DC 20375–0001 Figure 1: Silver Activated zinc sulfide powder. Selecting this option will search the current publication in context. zinc sulfide phosphors phosphor infrared Prior art date 1956-04-30 Legal status (The legal status is an assumption and is not a legal conclusion. NL:zinc sulfide phosphor. The long afterglow phosphors can absorb the green TIEL from ZnS:Cu and then convert it into blue and red photoluminescence (PL) through photostimulated luminescence (PSL). Sodium Pyrosulfite Used for Rubber Coagulant. ON THE CRYSTAL GROWTH OF ZINC SULFIDE PHOSPHOR. The product is a cubic ZnS:Cu-phosphor, which emits green light at 530 nm. Website © 2020 AIP Publishing LLC. (1) The zinc sulfide, before firing, is a large aggregate of crystallites with the crystal diameter of about 150 Å and contains about 8% of α-form. Article copyright remains as specified within the article. The instant method of making a copper- and/or manganese-activated zinc sulfide electroluminescent phosphor employs a low-temperature vapor state reaction between zinc- and copper- and/or manganese-containing species and a gaseous mixture of hydrogen sulfide gas, hydrogen chloride gas and, optionally, an inert carrier gas. Zinc sulfide in a suitably activated form (i.e., with trace quantities of certain elements) can exhibit fluorescence, phosphorescence, and luminescence. These impurities deform the crystal structure, producing various types of metastable energy levels between the conduction band … with great purity and very stable quality. We claim: 1. Experiments have been carried out to find the effect of phosphor constitution and method of preparation on the numbers and the energy distribution of electron traps. J. T. Randall and M. H. F. Wilkins, Proc. OSTI.GOV Journal Article: EFFECT OF NEUTRON BOMBARDMENT ON A ZINC SULFIDE PHOSPHOR. (Sax, Dangerous Properties of Industrial Materials) Sulfides of the heavy metals are generally insoluble and hence have little toxic action except through the liberation of hydrogen sulfide. 1.Luminous powder with automatic absorption of light, store light, luminous performance, absorb all kinds of natural light (sunlight), lighting, etc. Lithopone, which is a mixture of zinc sulfide and… As such, it has found application in luminous paints and as the phosphor in cathode-ray tubes. The phosphorescence and thermoluminescence of zinc sulfide phosphors are governed by the mechanism of electron trapping in the phosphor crystal lattice. Online vertaalwoordenboek. Selecting this option will search all publications across the Scitation platform, Selecting this option will search all publications for the Publisher/Society in context, The Journal of the Acoustical Society of America, Department of Physics, University of Birmingham, Birmingham, England. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) There is no cumulative effect from the inhalation of zinc fumes. : Hitachi Co., Ltd., Tokyo Sponsoring Org. It is also a by-product of the synthesis of ammonia from methane where zinc oxide is used to scavenge hydrogen sulfide impurities in the natural gas: Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) It … These products consist of a very uniform deposit of blue-emitting P22 type silver activated zinc sulfide phosphor (ZnS:Ag) applied to one side of a backing material. EFFECT OF NEUTRON BOMBARDMENT ON A ZINC SULFIDE PHOSPHOR. The first phosphor synthesized was probably an impure barium sulfide preparation with very low luminance efficiency and with the serious shortcoming that it was rather quickly decomposed in moist air, yielding hydrogen sulfide.A more stable sulfide-type phosphor was produced in 1866 by heating zinc oxide in a stream of hydrogen sulfide. Soc. sodium pyrosulphite, 97% min purity, white crytalline powder, industry grade, smbs manufacturer, rubber solidifying agents. (2) The crystal growth of zinc sulfide phosphor takes place at about 500°C regardless of whether there is flux or not, but the rate of … Mijnwoordenboek.nl is een onafhankelijk privé-initiatief, gestart in 2004. zinksulfidefosfor. Allgem. B. Gudden and R. W. Pohl, Zeits. Search nearly 14 million words and phrases in more than 470 language pairs. Zinc sulfide can be used: • To prepare flexible transparent conductive coatings essential for fabrication of a variety of printed electronic devices such as flexible displays and solar cells. Wide-Spectrum Manipulation of Triboelectrification-Induced Electroluminescence by Long Afterglow Phosphor in Elastomeric Zinc Sulfide Composite March 2019 Journal of Materials Chemistry C 7(15) A phosphor is composed of a base compound (a pure insulating material or a wide energy gap semiconductor, as in the case of ZnS) that is “activated” with the addition of a small percentage of impurities (doping). When pure zinc sulfide is struck by an electron beam, it gives off a greenish glow. Roy. English-Dutch technical dictionary. A. T. Allen and J. L. Greenshaw, Zeits. Experiments have been carried out to find the effect of phosphor constitution and method of preparation on the numbers and the energy distribution of electron traps. Educ. Luminescent materials and phosphor chemistry. This option allows users to search by Publication, Volume and Page. The composite material can emit the blue, green, red, and white fluorescence, such that TIEL can achieve wide-spectrum manipulation by adjusting the component proportions. ZnS:Cu,Al - zinc sulfide co-doped with copper and aluminum - is a green phosphor powder with an emission peak of 530nm. zinc sulfide phosphor particle size size distribution average Prior art date 1995-06-28 Legal status (The legal status is an assumption and is not a legal conclusion. In the image aside (Massimiliano Malgieri et al 2018 Phys. After grinding, heated in hydrogen sulfide at 880°C, held for 10 min in this condition and cooled slowly. ZnS:Ag PHOSPHOR POWDER EJ-600 . Encapsulating copper-activated zinc sulfide phosphor particles was an effective method in order to prolong the lifetime of electroluminescence device and solve the problem of phosphor aged quickly. ZnS:Cu (Zinc Sulfide) green lighting luminescent glowing pigment powder phosphor, US $ 400 - 450 / Kilogram, Shanghai, China, KPT, Electrodeless.Source from Shanghai Keyan Phosphor Technology Co., Ltd. on Alibaba.com. ZINC SULFIDE, PHOSPHOR - chemical information, properties, structures, articles, patents and more chemical data. Zinc sulfide phosphors are used with radioactive materials, where the phosphor was excited by the alpha- and beta-decaying isotopes, to create luminescent paint for dials of watches and instruments (radium dials).Between 1913 and 1950 radium-228 and radium-226 were used to activate a phosphor made of silver doped zinc sulfide (ZnS:Ag), which gave a greenish glow. In zinc processing: Other industrial compounds. yellow green glow in the dark Zinc Sulfide phosphor powder . Translation for: 'zinc sulfide phosphor' in English->Dutch dictionary. Soc. Min purity, white crytalline powder, industry grade, smbs manufacturer, rubber solidifying agents T.! 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