Search results for "Phosphor"

showing 10 items of 1952 documents

CCDC 791091: Experimental Crystal Structure Determination

2011

Related Article: J.Konu, H.M.Tuononen, T.Chivers|2009|Inorg.Chem.|48|11788|doi:10.1021/ic901878h

(((Diisopropylphosphoroselenoyl)methylene)(diisopropyl)(selanyl)phosphoranato)-(NNN'N'-tetramethylethane-12-diamine)-lithiumSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 804806: Experimental Crystal Structure Determination

2013

Related Article: D.H.Nguyen, J.Bayardon, C.Salomon-Bertrand, S.Juge, P.Kalck, J.-C.Daran, M.Urrutigoity, M.Gouygou|2012|Organometallics|31|857|doi:10.1021/om2008265

(1-((lambda^5^-Boranyl(diphenyl)phosphoranyl)methyl)-25-diphenyl-1H-phosphole-HH'P)-(eta^2^eta^2^-cyclo-octa-15-diene)-rhodium tetrafluoroborateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 681287: Experimental Crystal Structure Determination

2009

Related Article: M.D.Santana, L.Lopez-Banet, G.Garcia, L.Garcia, J.Perez, M.Liu|2008|Eur.J.Inorg.Chem.||4012|doi:10.1002/ejic.200800345

(Di-n-butyl phosphoric acid-O)-(hydrogen tris(35-dimethylpyrazol-1-yl)borate)-bis(35-dimethylpyrazole)-nickel(ii) di-n-butyl phosphateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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Structure, morphology and photoluminescence emissions of ZnMoO4: RE 3+=Tb3+ - Tm3+ - X Eu3+ (x = 1, 1.5, 2, 2.5 and 3 mol%) particles obtained by the…

2018

Made available in DSpace on 2018-12-11T17:36:34Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-06-25 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Ministerio de Economía y Competitividad ZnMoO4 and ZnMoO4: RE3+ = 1% Tb3+, 1% Tm3+, x Eu3+ (x = 1, 1.5, 2, 2.5 and 3 mol%) particles were prepared by a sonochemical method. The influence of the dopant content on photoluminescent behavior was investigated. The X-ray diffraction results confirmed the formation of the α-ZnMoO4 phase with a triclinic crystalline structure. The influence of th…

- Tm3+- Eu3+PhotoluminescenceMaterials scienceEu3+Tm3+Band gapAnalytical chemistryPhosphor02 engineering and technologyTriclinic crystal system010402 general chemistry01 natural sciencesSonochemical method PhotoluminescenceTb3+Materials ChemistrySINTERIZAÇÃOPhotoluminescenceQuenchingDopantMechanical EngineeringMetals and AlloysTb3+ [ZnMoO4]021001 nanoscience & nanotechnology0104 chemical sciencesMechanics of MaterialsDensity functional theoryZnMoO4Wulff constructionSonochemical method0210 nano-technology
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How activator ion concentration affects spectroscopic properties on Ba4Y3F17: Er3+, Yb3+, a new perspective up-conversion material

2018

Abstract Ba4Y3F17 with Er3+ and Yb3+, a promising material for up-conversion luminescence, was synthesized. Excellent isomorphic capacity was detected. Low-temperature measurements show that erbium ions are incorporated in multiple lattice positions, which is inconsistent with the current model of Ba4Y3F17 crystal lattice structure. Activator ion concentration has a different impact on 4S3/2 and 4F9/2, states (for the green and red luminescence, respectively) depopulation. Energy transfer from Er3+ 4S3/2 state to Yb3+ is observed even at low temperature (15 K) while Er-Er cross-relaxation is observed from 120 K and above. Yb3+ concentration has a great impact to red-to-green up-conversion l…

010302 applied physicsMaterials scienceEnergy transferBiophysicsAnalytical chemistryQuantum yield02 engineering and technologyGeneral ChemistryCrystal structure021001 nanoscience & nanotechnologyCondensed Matter Physics01 natural sciencesBiochemistryAtomic and Molecular Physics and OpticsIonLattice (order)0103 physical sciencesActivator (phosphor)Up conversion0210 nano-technologyLuminescenceJournal of Luminescence
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Time-resolved pulsed OSL of ceramic YAP:Mn phosphors

2019

The paper deals with the results of comparative study on time-resolved pulsed optically stimulated luminescence (TR-OSL) response of ceramic YAP:Mn materials prepared by different methods. In parti...

010302 applied physicsMaterials scienceOptically stimulated luminescencebusiness.industryPhosphor02 engineering and technology021001 nanoscience & nanotechnologyCondensed Matter Physics01 natural sciencesElectronic Optical and Magnetic MaterialsControl and Systems Engineeringvisual_art0103 physical sciencesThermoluminescent DosimetryMaterials ChemistryCeramics and Compositesvisual_art.visual_art_mediumOptoelectronicsCeramicElectrical and Electronic Engineering0210 nano-technologybusinessIntegrated Ferroelectrics
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Emerging blue-UV luminescence in cerium doped YAG nanocrystals

2016

Physica status solidi / Rapid research letters 10(6), 475 - 479(2016). doi:10.1002/pssr.201600041

010302 applied physicsMaterials sciencebusiness.industryDopingchemistry.chemical_elementSynchrotron radiationPhosphor02 engineering and technologyScintillator021001 nanoscience & nanotechnologyCondensed Matter Physics01 natural sciences530CeriumchemistryNanocrystal0103 physical sciencesOptoelectronicsGeneral Materials Scienceddc:5300210 nano-technologybusinessLuminescence
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2021

Atomic layer deposition (ALD) technology has unlocked new ways of manipulating the growth of inorganic materials. The fine control at the atomic level allowed by ALD technology creates the perfect conditions for the inclusion of new cationic or anionic elements of the already-known materials. Consequently, novel material characteristics may arise with new functions for applications. This is especially relevant for inorganic luminescent materials where slight changes in the vicinity of the luminescent centers may originate new emission properties. Here, we studied the luminescent properties of CaS:Eu by introducing europium with oxygen ions by ALD, resulting in a novel CaS:EuO thin film. We …

010302 applied physicsPhotoluminescenceMaterials sciencebusiness.industryDopingchemistry.chemical_elementPhosphor02 engineering and technology021001 nanoscience & nanotechnology7. Clean energy01 natural sciencesIonAtomic layer depositionchemistry13. Climate action0103 physical sciencesOptoelectronicsGeneral Materials ScienceThin film0210 nano-technologybusinessLuminescenceEuropiumMaterials
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Synthesis of Eu<sup>2+</sup> and Dy<sup>3+</sup> Doped Strontium Aluminates and their Properties

2016

Strontium aluminate phosphors were synthesized by the solution combustion method using citric acid, urea or glycine as reducing agent and europium and dysprosium as dopants. The content of both dopants was in the range of 1 – 2 mol%. Dependence of phase composition, crystallite size and specific surface area on calcinations temperature, used reducing agents and dopants were determined. Luminescent properties of the calcinated at 1300 °C powders contained SrAl2O4 (90 %) and Sr4Al24O25 (10%) phases with crystallite size of 80 nm were determined.

010302 applied physicsStrontiumMaterials scienceReducing agentMechanical EngineeringInorganic chemistryStrontium aluminatechemistry.chemical_elementPhosphor02 engineering and technology021001 nanoscience & nanotechnology01 natural scienceschemistry.chemical_compoundchemistryMechanics of MaterialsSpecific surface area0103 physical sciencesDysprosiumGeneral Materials ScienceCrystallite0210 nano-technologyEuropiumKey Engineering Materials
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Origin of Enzymatic Kinetic Isotope Effects in Human Purine Nucleoside Phosphorylase

2017

Here we report a study of the effect of heavy isotope labeling on the reaction catalyzed by human purine nucleoside phosphorylase (hPNP) to elucidate the origin of its catalytic effect and of the enzymatic kinetic isotope effect (EKIE). Using quantum mechanical and molecular mechanical (QM/MM) molecular dynamics (MD) simulations, we study the mechanism of the hPNP enzyme and the dynamic effects by means of the calculation of the recrossing transmission coefficient. A free energy surface (FES), as a function of both a chemical and an environmental coordinate, is obtained to show the role of the environment on the chemical reaction. Analysis of reactive and nonreactive trajectories allows us …

010304 chemical physicsChemistryPurine nucleoside phosphorylasevariational transition state theoryGeneral Chemistry010402 general chemistryenzyme catalysis01 natural sciencesChemical reactionCatalysis0104 chemical sciencesEnzyme catalysisCatalysisSolventMolecular dynamicsComputational chemistryenzymatic kinetic isotope effect0103 physical sciencesKinetic isotope effectMoleculeQM/MM methodsprotein motionsACS Catalysis
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