Arzumanyan Grigory - Academia.edu (original) (raw)

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Papers by Arzumanyan Grigory

Research paper thumbnail of Upconversion Luminescence of Er 3+ and Co-Doped

Research paper thumbnail of Upconversion Luminescence of Er and Co-Doped Er/Yb Novel Transparent Oxyfluoride Glasses and Glass Ceramics: Spectral and Structural Properties

Research paper thumbnail of Upconversion Luminescence of Er 3+ and Co-Doped Er 3+ /Yb 3+ Novel Transparent Oxyfluoride Glasses and Glass Ceramics: Spectral and Structural Properties

Transparent oxyfluoride silicate precursor glasses and glass ceramics with the novel composition ... more Transparent oxyfluoride silicate precursor glasses and glass ceramics with the novel composition (1) SiO doped with Er 3+ and co-doped with Er 3+ /Yb 3+ ions were synthesized. X-ray diffraction analysis (XRD) and Er 3+ absorption spectra revealed precipitation of PbF 2 nanocrystals dispersed in the glassy matrix. Under 980 nm laser excitation, intense green, red and near IR bands of upconversion luminescence (UCL) were recorded both before and after heat treatment. In the glass ceramics the upconversion intensity increased significantly. To our knowledge, for the first time the composition of the glass ceramics characterized by the small-angle neutron scattering (SANS) showed the cluster organization of PbF 2 nanocrystals.

Research paper thumbnail of Book of Abstracts: 2nd International Summer School and Workshop "Complex and Magnetic Soft Matter Systems:Physico-Mechanical properties and Structure

TOPICS would cover theory, simulations, and experimental research in physical, mechanical, struct... more TOPICS would cover theory, simulations, and experimental research in physical, mechanical, structural, chemical, materials science, and biological aspects of soft complex matter with special emphasis on soft magnetic matter (magnetic elastomers, ferrogels, ferrofliquid crystals, associations of nanoparticles with biomolecules and cells, etc.).

Research paper thumbnail of Upconversion Luminescence of Er 3+ and Co-Doped

Research paper thumbnail of Upconversion Luminescence of Er and Co-Doped Er/Yb Novel Transparent Oxyfluoride Glasses and Glass Ceramics: Spectral and Structural Properties

Research paper thumbnail of Upconversion Luminescence of Er 3+ and Co-Doped Er 3+ /Yb 3+ Novel Transparent Oxyfluoride Glasses and Glass Ceramics: Spectral and Structural Properties

Transparent oxyfluoride silicate precursor glasses and glass ceramics with the novel composition ... more Transparent oxyfluoride silicate precursor glasses and glass ceramics with the novel composition (1) SiO doped with Er 3+ and co-doped with Er 3+ /Yb 3+ ions were synthesized. X-ray diffraction analysis (XRD) and Er 3+ absorption spectra revealed precipitation of PbF 2 nanocrystals dispersed in the glassy matrix. Under 980 nm laser excitation, intense green, red and near IR bands of upconversion luminescence (UCL) were recorded both before and after heat treatment. In the glass ceramics the upconversion intensity increased significantly. To our knowledge, for the first time the composition of the glass ceramics characterized by the small-angle neutron scattering (SANS) showed the cluster organization of PbF 2 nanocrystals.

Research paper thumbnail of Book of Abstracts: 2nd International Summer School and Workshop "Complex and Magnetic Soft Matter Systems:Physico-Mechanical properties and Structure

TOPICS would cover theory, simulations, and experimental research in physical, mechanical, struct... more TOPICS would cover theory, simulations, and experimental research in physical, mechanical, structural, chemical, materials science, and biological aspects of soft complex matter with special emphasis on soft magnetic matter (magnetic elastomers, ferrogels, ferrofliquid crystals, associations of nanoparticles with biomolecules and cells, etc.).

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