Visible emission from rare earth ions in nanocrystal-containing glasses

Glass, William; Toulouse, J.; Tick, Paul A.

doi:10.1016/s0022-3093(97)90122-8

Cited by 9 publications

(4 citation statements)

References 6 publications

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“…Research is active and ongoing in glass−ceramic materials and nanocrystal-containing glasses. , These materials achieve optical properties that are similar to those of lanthanides in crystalline hosts, but with the processibility or compatibility of a glass host. Recent advances have managed to put lanthanide dopants in new hosts or composite environments.…”

Section: Nanostructured Films and Compositesmentioning

confidence: 99%

Synthesis and Luminescence of Lanthanide Ions in Nanoscale Insulating Hosts

1998

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This review summarizes recent work in nanostructured insulating materials that contain optically active lanthanide ions. These materials find applications in lasers, optical amplifiers, and optical-display phosphors. This review concentrates on the synthesis and luminescence spectroscopy of lanthanide-containing nanostructured particles, films, and composites. Spectroscopic studies range from basic luminescence spectroscopy and quantum efficiency measurements to high-resolution spectroscopic studies that investigate the phonon dynamics and electron−phonon interaction as a function of particle size. This review identifies several areas for further study, including the location, distribution, or segregation of dopants in nanoparticles; the efficiency of energy transfer across interfaces; and the effects of quantum confinement or changes in phonon dynamics and electron−phonon interactions on the radiative and nonradiative relaxation rates in localized luminescent dopants.

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Section: Nanostructured Films and Compositesmentioning

confidence: 99%

Synthesis and Luminescence of Lanthanide Ions in Nanoscale Insulating Hosts

1998

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“…The preferred location of RE dopant ions is in the crystalline phase [1][2][3][4][5], instead of in the glass matrix. This enhances the characteristic laseremission intensity that is highly desirable for optical applications [6]. One of the most commonly adopted fluoride phases for lanthanide doping is LaF 3 .…”

Section: Introductionmentioning

confidence: 99%

Design of oxy-fluoride glass-ceramics containing NaLaF4 nano-crystals

Pablos-Martín

Mather

Muñoz

et al. 2010

Journal of Non-Crystalline Solids

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“…6,7,[9][10][11] In these materials, the active metal ions (mostly rare-earths up to now) are incorporated into the low phonon energy lanthanum-fluoride crystals that form during heat treatment. 7,[12][13][14] Both conversion efficiency and emission intensity of this excellent optical material depend on the structural environment,…”

Section: Introductionmentioning

confidence: 99%

“…the bonding character and the local structure (ligands, coordination number, bond distance and bond angle) of the metal elements that are embedded into the fluorine containing microcrystalline phases. [6][7][8][9][10][11][12][13][14][15] As Ni 2+ -doped crystals have attracted much attention because they possess broadband fluorescence covering the whole 1200-1600 nm telecommunication window, [1][2][3] we have studied in this paper how the local environment of the active transition metal ion Ni 2+ evolves during the crystallization of a lanthanum doped oxyfluoride glass. Because Nickel takes the divalent states in almost all hosts, there is no serious need to control its valence.…”

Section: Introductionmentioning

confidence: 99%

In situ local environment and partitioning of Ni 2+ ions during crystallization of an oxyfluoride glass

Cochain

Cormier

Novikovа

et al. 2015

Journal of Non-Crystalline Solids

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The local structure of Ni 2+ ions during crystallization of an oxyfluoride aluminosilicate glass was examined by high temperature in situ spectroscopic experiments coupled with in situ X-ray diffraction to characterize the different crystallization steps. We show that Ni 2+ ions in the glass are located in the silicate glass network. After heat treatment Ni 2+ ions do not partition into the fluorine crystallites as observed for rare-earth metals. Instead, we observed the crystallization of a NiAl 2 O 4 crystalline phase, a largely inverse spinel. The in situ spectroscopic results (XRD, UV-Vis-NIR and Ni K-edge XANES) give new insights on the nickel partitioning between the supercooled liquid and the new crystals and show that the inversion degree of NiAl 2 O 4 spinel during its crystallization depends not only on the temperature but also on the annealing timescale. We also show that the addition of fluorine into aluminosilicate systems favors the formation of spinel crystals at lower temperature than usually observed, thereby playing a role to promote nucleation. *

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Visible emission from rare earth ions in nanocrystal-containing glasses

Cited by 9 publications

References 6 publications

Synthesis and Luminescence of Lanthanide Ions in Nanoscale Insulating Hosts

Synthesis and Luminescence of Lanthanide Ions in Nanoscale Insulating Hosts

Design of oxy-fluoride glass-ceramics containing NaLaF4 nano-crystals

In situ local environment and partitioning of Ni 2+ ions during crystallization of an oxyfluoride glass

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