Articles with "spectroscopic investigation" as a keyword



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Microscopic and spectroscopic investigation of carbon nanotubes-rhenium nanocomposites fabricated in different conditions

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Published in 2017 at "Archives of Civil and Mechanical Engineering"

DOI: 10.1016/j.acme.2017.04.008

Abstract: Abstract The article describes the morphology of carbon-metal nanocomposites consisting of nanostructured rhenium permanently attached to carbon nanomaterials, in the form of single-walled (SWCNTs), double-walled (DWCNTs) or multi-walled carbon nanotubes (MWCNTs). Such nanocomposites are produced… read more here.

Keywords: carbon; microscopy; carbon nanotubes; spectroscopic investigation ... See more keywords
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Spectroscopic investigation of La7Ta3W4O30:Sm3+ orange-red phosphor for white LEDs

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Published in 2020 at "Arabian Journal of Chemistry"

DOI: 10.1016/j.arabjc.2020.03.018

Abstract: Abstract The novel orange-red light emitting La7Ta3W4O30:xSm3+ (x = 0.005–0.20) phosphors were synthesized via the solid-state reaction method. The crystal structure, photoluminescence (PL) properties, optimum concentration, color purity, decay life, and thermal stability of the samples were… read more here.

Keywords: la7ta3w4o30 sm3; spectroscopic investigation; orange red;
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Thermo-optical spectroscopic investigation of new Nd3+-doped fluoro-aluminophosphate glasses

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Published in 2018 at "Journal of Alloys and Compounds"

DOI: 10.1016/j.jallcom.2017.10.152

Abstract: Abstract Fluorophosphate glasses in the compositional system 25BaF2-25SrF2-10Al(PO3)3-20AlF3-(20-z)YF3:zNdF3 with z = 0.5, 1, 2, 4 and 8 mol % were prepared and characterized from the spectroscopic point of view, as potential laser active media. The thermal optical properties… read more here.

Keywords: thermo optical; spectroscopic; optical spectroscopic; spectroscopic investigation ... See more keywords
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Spectroscopic investigation of upconversion and downshifting properties LaF3:Tb3+,Yb3+: A dual mode green emitter nanophosphor

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Published in 2020 at "Journal of Alloys and Compounds"

DOI: 10.1016/j.jallcom.2020.157857

Abstract: Abstract The optimization of dopant concentration in upconverting nanophosphor is a real problem because of distinct limits defined by surface quenching, energy transfer and cross relaxation phenomenon. In this work, LaF3 based nanophosphors with different… read more here.

Keywords: dual mode; tb3 yb3; investigation upconversion; spectroscopic investigation ... See more keywords
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Spectroscopic investigation of praseodymium and cerium co-doped 20Al(PO3)3-80LiF glass for potential scintillator applications

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Published in 2019 at "Journal of Non-Crystalline Solids"

DOI: 10.1016/j.jnoncrysol.2019.119495

Abstract: Abstract The optical properties of 20Al(PO 3 ) 3 –80LiF (APLF80) glass co-doped with praseodymium (Pr 3+ ) and cerium (Ce 3+ ) ions are explored. By co-doping the host APLF80 glass matrix with praseodymium… read more here.

Keywords: spectroscopic investigation; glass; praseodymium cerium; scintillator ... See more keywords
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Structural modeling and spectroscopic investigation of isolated and hydrochloride tyramine neurotransmitter

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Published in 2017 at "Journal of Molecular Structure"

DOI: 10.1016/j.molstruc.2017.06.140

Abstract: Abstract We have reported optimized molecular structure and vibrational spectra of an important biomolecule named tyramine in ten different conformers. The FTIR and FTRaman spectra were recorded in the spectral region 400–4000 cm−1 and 50–4000 cm−1 respectively.… read more here.

Keywords: energy; structural modeling; isolated hydrochloride; spectroscopic investigation ... See more keywords
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Spectroscopic Investigation and Theoretical Modeling of Benzothiadiazole-Based Charge-Transfer Chromophores: From Solution to Nanoaggregates

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Published in 2017 at "Journal of Physical Chemistry C"

DOI: 10.1021/acs.jpcc.7b04647

Abstract: Experimental and theoretical investigations are presented on four quadrupolar molecules constituted of a central electron-acceptor 2,1,3-benzothiadiazole conjugated at both sides with electron-donating thiophene (or 2,2′-bithiophene) substituted groups. Previous investigation of their physicochemical properties demonstrated that… read more here.

Keywords: investigation theoretical; benzothiadiazole; investigation; spectroscopic investigation ... See more keywords
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Spectroscopic Investigation of Diarylethene Photochromes Linked to Silica Nanoparticles

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Published in 2018 at "Journal of Physical Chemistry C"

DOI: 10.1021/acs.jpcc.8b00396

Abstract: The spectroscopic properties of silica nanoparticles decorated with fluorescent photochromic molecules at their surface were studied by combining UV–visible spectroscopy with fluorescence correlation spectroscopy on diluted samples of particles dispersed in dimethyl sulfoxide (DMSO). We… read more here.

Keywords: diarylethene; silica nanoparticles; spectroscopic investigation; investigation diarylethene ... See more keywords
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Spectroscopic investigation of the covalence of An(III) complexes with tetraethylcarboxamidopyridine.

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Published in 2022 at "Dalton transactions"

DOI: 10.1039/d2dt00757f

Abstract: In this work, we report a combined NMR spectroscopic and time-resolved laser fluorescence spectroscopic (TRLFS) study of the complexation of N,N,N',N'-tetraethyl-2,6-carboxamidopyridine (Et-Pic) with Ln(III) (La, Sm, Eu, and Lu), Y(III) and An(III) (Am and Cm).… read more here.

Keywords: investigation covalence; covalence iii; iii complexes; iii ... See more keywords
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Characterization, spectroscopic investigation of defects by positron annihilation, and possible application of synthesized PbO nanoparticles

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Published in 2021 at "Chinese Physics B"

DOI: 10.1088/1674-1056/abd2a9

Abstract: Nanocrystalline samples of highly pure lead oxide were prepared by the sol-gel route of synthesis. X-ray diffraction and transmission electron microscopic techniques confirmed the nanocrystallinity of the samples, and the average sizes of the crystallites… read more here.

Keywords: annihilation; lead oxide; characterization spectroscopic; positron annihilation ... See more keywords
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High-pressure spectroscopic investigation of multiferroic Ni3TeO6

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Published in 2018 at "Physical Review B"

DOI: 10.1103/physrevb.98.184101

Abstract: We combined diamond anvil cell techniques, infrared and Raman spectroscopies, and lattice dynamics calculations to explore the high pressure properties of multiferroic Ni3TeO6. Using a frequency trend analysis, we trace a subtle decrease in compressibility… read more here.

Keywords: multiferroic ni3teo6; investigation multiferroic; pressure spectroscopic; high pressure ... See more keywords