Synthesis characterisation and luminescence investigation of un doped and doped strontium silicate sr2sio4 nanophosphor

Abstract

Nanotechnology is design, fabrication and application of nanostructures or nano materials and the fundamental understanding of the relationship between physical properties or phenomenon and material dimensions. Nanotechnology deals with the materials or structures in nanometer scales, typically ranging from subnanometer to several hundred nanometers. The importance of studying nanoscience and nanotechnology is that the materials in nano regime possess new physical and chemical properties that in turn exhibits new phenomenon. Furthermore, the exceptional properties of the nanostructured materials are of technological importance due to its applicability in the advancement of technology. It is due to this technology the ultra-strong ultra-light multifunctional materials are made possible from hierarchical nanostructures. Nanotechnology also promises the possibilities of creating nanostructures that have the excellent properties including superconductivity, magnetism etc. The other important aspect of nanotechnology is miniaturization of current-voltage devices, sensors etc. that greatly impact the world. newline newlineNanotechnology has an extremely broad range of potential applications from nanoscale electronics and optics to nanobiological systems and nanomedicine and hence needs contribution from the multidisciplinary teams of physicists, chemists, material scientists, engineers and others. Work on fabrication and processing of nanomaterials and nanostructures started long ago but, it is since last two to three decades the nanotechnology is gaining importance and is expanding rapidly. However, the theme of the thesis has been focused primarily on the studies of optical properties (photoluminescence and thermoluminescence) of inorganic phosphor. newline newline