Photoluminescence in amorphous YNiO3 and La0.5Nd0.5NiO3 systems

Synthesis of Lanthanum Nickelate and Praseodymium Substituted Compounds by Molten Salt Technique

“…Fig 4 (a) shows the spectrum of the parent compound. The transmittance band appeared at 3475 cm -1 may be attributed to the O-H stretching vibration of water molecules as reported in the literature [34]. The bands seen between 1274 to 1628 cm -1 are related to the coordination of the Ni 3+ cations as reported by Fernades et al [12].…”

Synergistic impacts of sonolysis aided photocatalytic degradation of water pollutant over perovskite-type CeNiO3nanospheres

“…The Ni 2+ /Ni 3+ cations analogous with the asymmetric sharp bands were found in CeNiO 3 sample around 1384 cm −1 to 1613 cm −1 . 54,55 The Ni–O stretching is ascribed to the transmittance bands observed at higher wavelengths (below 750 cm −1 ). 53 The FTIR spectrum of CeO 2 revealed two distinct peaks at 1387 and 521 cm −1 associated with Ce–O stretching.…”

Photoluminescence in the CaxSr1−xWO4 system at room temperature

“…Nevertheless, photoluminescence (PL) was recently observed in disordered perovskite materials in systems such as SrTiO 3 [2,3], CaTiO 3 [4], BaTiO 3 [5], (Ba,Sr)TiO 3 [6], PbTiO 3 [7], LiNbTiO 3 [8], ZrTiO 4 [9,10], which displayed intense PL emission at room temperature, at the visible region. Such discovery raises a great technological interest, once the crystalline systems need high temperatures for preparation, whereas the disordered systems can be obtained at lower temperatures (below 500 1C), thus reducing the processing cost.…”