The Raman spectroscopy and AC DC magnetization of Dy2?xEuxTi2O7 pyrochlore materials have been investigated. A systematic shift in all phonon modes with higher Eu content observed spectra confirms the successful substitution Dy3+ ion by Eu3+ ions. High concentration induces exchange interactions between atoms alters crystal-field Dy2?xEuxTi2O7. Rich samples (x = 1.5, 1.8 1.9) show existence was...

A smart meta-superconductor Bi(Pb)SrCaCuO (B(P)SCCO) may increase the critical transition temperature (TC) of B(P)SCCO by electroluminescence (EL) energy injection inhomogeneous phases. However, amplitude ?TC (?TC=TC?TC,pure) TC is relatively small. In this study, a with different matrix sizes was designed. Three kinds raw materials particle were used, and series Y2O3:Sm3+, Y2O3, Y2O3:Eu3+, Y2O...

The monazite-type solid solution of LaPO4 and EuPO4 has been studied by X-ray diffraction, infrared (IR) and Raman spectroscopic techniques. A substantial excessmolar volume has been derived from the X-ray data, and the Raman and IR spectra show band broadening typical for mixing of cations of different size on the cation sublattice. The IR spectra were interpreted by the autocorrelation method...

Eu3+-(5% mol)-doped Lu2SiO5 optical quality films were prepared using the sol–gel method and dip-coating technique from lutetium europium salts as lanthanide precursors tetraethyl orthosilicate (TEOS) silicon source. To increase thickness of films, 3-Glycidyloxypropyl trimethoxysilane (Glymo) was added rheological agent during sol formation. Structural, morphological, luminescent properties inv...

The changes in the immunological properties of apolipoprotein AI (apo-AI) and AII (apo-AII) during the oxidation of the high-density lipoprotein HDL3 and its influence on the binding of heavily oxidized low-density lipoprotein (LDL) to type I and III collagen were investigated. Oxidation of HDL3 or Eu3+-labelled HDL3 was performed with CuSO4, varying the time of oxidation. Oxidation of HDL3 res...

The synthesis, morphological characterization, and optical properties of colloidal, Eu(III) doped Gd2O3 nanoparticles with different sizes and shapes are presented. Utilizing wet chemical techniques and various synthesis routes, we were able to obtain spherical, nanodisk, nanotripod, and nanotriangle-like morphology of Gd2O3:Eu3+ nanoparticles. Various concentrations of Eu3+ ions in the crystal...

X-ray detectors for imaging with a spatial resolution in the micrometer and submicrometer range have been developed at synchrotron radiation sources since 1996. The detectors consist of a scintillator, a light microscopy optic and a charge-coupled device (CCD). The scintillator converts part of the X-ray stopped by a material into a visible-light image which is projected onto the CCD by the lig...

Eu3+-doped YxLu1?xNbO4 (x = 0, 0.25, 0.5, 0.75, 1) were prepared by the solid-state reaction method. YNbO4:Eu3+ and LuNbO4:Eu3+ crystallize as beta-Fergusonite (SG no. 15) in 1–10 ?m diameter particles. Photoluminescence emission spectra show a slight linear variation of energies intensities with solid-solution composition terms Y/Lu content. The energy difference between Stark sublevels 5D0?7F...