Tìm thấy 20+ kết quả cho từ khóa "Optical Properties"
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Sheleg, “Study of the Elastic Properties of Gallium Nitride,” Phys. Davis, “Thermomechanical and Thermo- optical Properties of the LiCaAlF 6 : Cr 3+ Laser Material,” J. Becker, “Piezoelectric and Elastic Properties of the Nonlinear Optical Material Bismuth Triborate, BiB 3 O 6. Hobden, “The Dispersion of the Refractive Indices of Proustite (Ag 3 AsS 3. Andeen, “Temperature and Pressure Variation of the Refractive Index of Diamond,” Appl.
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AND THE OPTICAL PROPERTIES OF Zn 1−x Ni x O POWDER. ZnO:Ni powders are prepared by forced hydrolysis method. The researching results show the doping concentration of Ni strongly affected the luminescence in the UV spectral region and reveal application potential of ZnO:Ni material in optoelectronic and magneto-optical devices of UV range. The 3d transi- tion metals (TM) in the crystal field of ZnO act as luminescent centers giving rise to light emission in the UV, visible and IR ranges.
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Huang, Facet-Dependent Optical and Photothermal Properties of Au@Ag-Cu 2 O Core-shell Nanocrystals, Chem. Wang, Au–Cu 2 O Core–Shell Nanoparticles: A Hybrid Metal Semiconductor Heteronanostructure with Geometrically Tunable Optical Properties, Chem. Xu, Plasmon-enhanced photocatalytic properties of Cu 2 O nanowire–Au nanoparticle assemblies, Langmuir pp
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Since oxadiazole substitutes are known in today’s scientific world, their nonlinear optical (NLO) properties are very promising for biooptical applications and use in the field of optoelectronic, such as in optical switching and optical limiting. In the present research, some novel S-(5-aryl-1, 3, 4-oxadiazol-2-yl) 2-chloroethanethioates (3a–3e) were synthesized and their influence on the optical properties was studied.
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Post-annealing effect on the structural and optical properties of electrophoretically coated 2D-Layered MoSe 2. Electrophoretic coating 2D-layered materials Post-annealing. Temperature dependent changes in the structural, nanomorphological and optical characteristics of the 2D layered molybdenum diselenide (MoSe 2. The in- and out-of plane vibrational modes observed in the Raman spectra were asserted as the 2H e MoSe 2 phase which was not affected by the post annealing temperature.
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Synthesis and Optical Properties of ZnAl 2 O 4 /Al 2 O 3 :Cr 3+. The results showed that Cr 3+ dopant concentration had a significant effect on the lattice constants of ZnAl 2 O 4 /Al 2 O 3 composite and their luminescence characteristics. When increasing Cr 3+ contents, the lattice constants of both the ZnAl 2 O 4 and α-Al 2 O 3 crystals increase.
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STRUCTURE, MORPHOLOGICAL, MAGNETIC AND OPTICAL PROPERTIES OF Cu x Mg 1-x Fe 2 O 4 (x NANO FERRITES. Abstract: Cu x Mg 1.x Fe 2 O 4 nanoparticles were successfully synthesized by co- precipitation. The samples were calcined at 900 o C for 3 h and X-ray diffraction analysis showed that Cu 0.5 Mg 0.5 Fe 2 O 4 had a single phase cubic spinel structure, while formation of secondary phase of Fe 2 O 3 was observed in XRD patterns of CuFe 2 O 4 , MgFe 2 O 4 .
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Belletti, Optical spectra of Dy 3+ in KY 3 F 10 and LiLuF 4 crystalline fibers, Journal of Luminescence . Rao, Structural, thermal, optical properties and simulation of white light of titanium-tungstate-tellurite glasses doped with dysprosium, Materials Research Bulletin . Moorthy, Spectroscopic and photoluminescence properties of Dy 3+ -doped lead tungsten tellurite glasses for laser materials, Journal of Alloys and Compounds .
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Some selected magnesium type of boracite minerals, electrical resistivity, and optical absorbance properties were also measured for the determination of physical properties.. Key words: Magnesium-type boracite, solid-state synthesis, reaction yield.
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The effects of experimental factors such as CS ratio, applied voltage, and flow rate on optical properties of the electrospun fibers were evaluated. The effect of variation of CS ratio on the optical properties of the fiber surfaces is shown in Figures 3a and 3b. The transmittance curves of PVA fibers containing various amounts of CS ranging from 1% to 7% (w/w) are given in Figure 3a. Highest light transmittance, which is approximately 90%, was found for PVA/CS 1% (w/w) fibers.
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A simple method for the determination of the optical constants n, k and the thickness of a weakly absorbing thin film. Optical properties of e-beam evaporated indium selenide (InSe) thin films. doi: 10.9734/JSRR/2014/7658. Preparation, structure, composition, optical and photoelectrochemical properties of vacuum annealed In-Se thin films. Effect of annealing on the structural and optical properties of InSe bilayer thin films.. doi: 10.1016/j.vacuum .
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We also obtained thin films of these MPcs with spin coating as the Suda group 14 did and investigated their optical properties both separately and mixing a two Pc solution to see how the optical properties changed.. This step was followed by cyclotetramerization of the resultant phthalonitrile derivatives. 19 All of the MPcs (2–5) were purified by column chromatography.
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The large values of quantum efficiency show the ability to use BTNA:Sm 3+ glasses for optical amplifier. It is found that the quantum efficiency decreases with increase of concentration of Sm 3+ ions. The causes of these phenomenons is due to the increase of energy transfer rate with increase of Sm 3+ concentration [2, 5, 8].. The optical properties of Sm 3+ -doped borotellurite glasses have been investigated.
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Dejene, Effect of Cr 3+ Doping on Structural and Optical Property of ZnGa 2 O 4 Synthesized by Sol-gel Method, Opt. Light Electron Opt., Vol. Solid State Chem., Vol. Ntwaeaborwa, Effects of Cr 3+ Mol% on the Structure and Optical Properties of the ZnAl 2 O 4 :Cr 3+ Nanocrystals Synthesized Using Sol-gel Process, Ceram. Int., Vol. https://doi.org/10.1016/j.materresbull
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In the present study, density functional theory (DFT), 12 time-dependent density functional theory (TD- DFT), 13 and coupled perturbed density functional theory (CP-DFT) 14,15 were used to investigate the linear and nonlinear optical properties of Pc/Por and their derivatives.
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Optical transition of Eu 3+ in Mg(Al 1-x Eu x ) 2 O 4. The powders of Mg(Al 1-x Eu x ) 2 O 4 have been synthesized by sol-gel method. Optical properties of the material were investigated. The nature of lines in luminescence spectra is related to the electron transitions of Eu 3+ ions corresponding to different sites in the lattice. The influence of Eu concentration on optical spectra was studied..
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Digital optical microscope. Set the temperature;. Real temperature of the decanol. Optical microscope image of a droplet during the dehydration process.. The optical properties of the fabricated microspheres were studied by a micro-photoluminescence (μ-PL) setup. The Influence of Decanol Temperature on the Dehydration Process. To study the influence of temperature on the dehydration process, we fixed the initial BSA concentration and droplet size.
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The optical absorption spectra of PMMA/ZnPc/Al nanocomposite films showed red shifting in the Q-band in the polymeric matrix. Changing the substituents at the periphery of the benzene rings can significantly affect the physico- chemical properties of phthalocyanine compounds. efficiently tunes the color of the phthalocyanines.
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The variations in the absorption and emission maxima values in different solvents were related to the solvent systems used, as they can significantly affect the optical properties of the dye molecule due to changing polarities [29]. This negative solvatochromism has been observed in previously reported pyrenyl systems and is probably due to the disruption of the π-stacking interactions in more polar solvents [30].
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Gallagher, X.Hong, A.Nurmikkvo, “Optical properties of manganese-doped nanocrystals of ZnS”, Physical Review letters pp. Wang, “Optical and magnetic properties of ZnS nanoparticles doped with Mn 2.