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Upconversion luminescence and thermal effects in terbium-ytterbium codoped fluorogermanate glass-ceramic
(2009-02-01)
Cooperative energy transfer upconversion luminescence is investigated in Tb3+/Yb3+-codoped PbGeO3-PbF 2-CdF2 glass-ceramic and its precursor glass under resonant and off resonance infrared excitation. Bright UV-visible ...
SnO2 nanoparticles functionalized in amorphous silica and glass
(Elsevier B.V. Sa, 2009-10-25)
Two different routes to obtain SnO2 nanoparticles, undoped and doped with rare earth metals (Eu or Pr), are described herein. The first route was based on the polymeric precursor method that led to the obtainment of SnO2 ...
SnO2 nanoparticles functionalized in amorphous silica and glass
(Elsevier B.V. Sa, 2009-10-25)
Two different routes to obtain SnO2 nanoparticles, undoped and doped with rare earth metals (Eu or Pr), are described herein. The first route was based on the polymeric precursor method that led to the obtainment of SnO2 ...
Precursors to plastic failure in a numerical simulation of CuZr metallic glass
(IOP, 2020)
We deform, in pure shear, a thin sample of Cu50Zr50 metallic glass using a molecular dynamics simulation up to, and including, failure. The experiment is repeated ten times in order to have average values and standard ...
Synthesis and structural characterization of carbon-rich SiCxOy derived from a Ni-containing hybrid polymer
(Elsevier Sci LtdOxfordInglaterra, 2008)
Infrared-to-visible frequency upconversion in transparent glass ceramics containing trivalent-rare-earth-doped nanocrystals
(2004-08-17)
In this work we report on visible upconversion emission in Er 3+-, and Ho3+-doped PbGeO3-PbF 2-CdF2-based transparent glass ceramics under 980 nm infrared excitation. In erbium-doped vitroceramic samples, blue(410 ran), ...
Infrared-to-visible frequency upconversion in transparent glass ceramics containing trivalent-rare-earth-doped nanocrystals
(2004-08-17)
In this work we report on visible upconversion emission in Er 3+-, and Ho3+-doped PbGeO3-PbF 2-CdF2-based transparent glass ceramics under 980 nm infrared excitation. In erbium-doped vitroceramic samples, blue(410 ran), ...
Thermal, structural and optical properties of new tungsten lead-pyrophosphate glasses
(Elsevier B.V., 2011-10-01)
Crystalline lead-pyrophosphate precursor was prepared in aqueous solution from lead nitrate and phosphoric acid and characterized by X-ray diffraction, thermogravimetry and Raman scattering. This crystalline lead-phosphate ...
Semiconductor/porous silica glass nanocomposites via the single-source precursor approach
(Pergamon-elsevier Science LtdOxfordInglaterra, 2006)
Embedding CoPt magnetic nanoparticles within a phosphate glass matrix
(2020-12-25)
Glasses are materials with highly flexible compositions and high chemical and physical durability. These characteristics make them suitable materials for hosting nanoparticles for different purposes. Hybrid glasses containing ...