The UV/VIS spectrophotometric scans were obtained to determine the opto-electronic properties of 2-oxo-2-(1-oxo-1H-isochromen-3-yl)ethyl methacrylate (other name: 2-(isocoumarin-3-yl)-2-oxoethyl methacrylate) compound thin film. refractive index at 700 nm was found be 1.61. values real part dielectric constant higher than those imaginary part. results indicated that electronic transition respon...

The effect of shift heavy ion irradiations on the structural and optical properties of 6 % Sb-doped SnO2 thin films deposited on quartz substrate by electron beam evaporation technique is presented. Two ion species Ni and Au with energy 120 MeV and fluence of 1 9 10 ion/cm were used. These films were characterized by X-ray diffraction, atomic force microscope, UV–visible and micro-Raman spectro...

Lead halide perovskites possess high photoluminescence (PL) efficiency and strong electron-phonon interactions, therefore optical cooling using up-conversion PL has been expected. We investigate anti-Stokes from green-luminescent ${\mathrm{Cs}}_{4}{\mathrm{PbBr}}_{6}$, whose origin is attributable to ${\mathrm{CsPbBr}}_{3}$ nanostructures embedded in a ${\mathrm{Cs}}_{4}{\mathrm{PbBr}}_{6}$ cry...

Neurobiological evidence implicates the amygdala as well as serotonergic (serotonin, 5-HT) signaling via postsynaptic 5-HT(2A) receptors as essential substrates of anxiety behaviors. Assuming a functional interdependence of these substrates, we hypothesized that a low-fear behavioral phenotype due to bilateral lesion of the amygdala would be associated with significant 5-HT(2A) receptor changes...

The evolution of the electronic absorption edge of type I, II and III kerogen is studied by diffuse reflectance UV–Visible absorption spectroscopy. The functional form of the electronic absorption edge for all kerogens measured is in excellent agreement with the ‘‘Urbach tail’’ phenomenology. The Urbach decay width extracted from the exponential fit within the visible range is strongly correlat...

Abstract New tellurite glasses with composition (in mol%): 60TeO 2 –(30-x)ZnO–5Bi O 3 –5TiO -xB (where x = 0, 2.5, 5.0, 7.5 and 10.0) were fabricated using conventional melt quenching method. Compositional dependence of the on their density, thermal, refractive index optical properties investigated. X-Ray Diffraction analysis was carried out to confirm nature thus formed glasses. Density, index...

Poly(vinyl chloride) (PVC) is considered one of the most versatile polymers due to its interaction with different additives. On other hand, binary sulfides have wide applications as zinc sulfide (ZnS), first discovered semiconductors. This study aims synthesize a nanocomposite material containing nano ZnS in PVC matrix surfactant compatibilizer agent evaluate optical and electrical properties w...

Lead halide perovskites possess high photoluminescence (PL) efficiency and strong electron-phonon interactions, therefore optical cooling using up-conversion PL has been expected. We investigate anti-Stokes from green-luminescent ${\mathrm{Cs}}_{4}{\mathrm{PbBr}}_{6}$, whose origin is attributable to ${\mathrm{CsPbBr}}_{3}$ nanostructures embedded in a ${\mathrm{Cs}}_{4}{\mathrm{PbBr}}_{6}$ cry...