Synthesis and Characterization of Trivalent Rare earth Doped Phosphors And their Applications in Displays

Abstract

Nanostructured materials have attracted considerable attention in recent years. Control over newlinesize, shape, and morphology of nanostructures is the most important advantage of templatebased newlinesynthesis and can produce chemical and physical properties that differ markedly from newlinethose of the bulk materials. Many different template materials are available, and depending newlineon their type and structure, a wide range of nanomaterials can be synthesized. The general newlinemechanism for template synthesis includes three principal stages, the template preparation, newlinedirected synthesis of the target material using the template, and template removal. A variety newlineof nanostructured materials are produced through template-based synthesis methods, newlineincluding zero-dimensional, one-dimensional, and two-dimensional structures. These span newlinedifferent forms such as nanoparticles, nanowires, nanotubes, nano-flakes, and nano-sheets. newlineMany physical characteristics of these materials such as the shape and size can be finely newlinecontrolled through template selection and as a result, their properties as well. Reviewed here newlineare several examples of these nanomaterials, with emphasis specifically on the templates and newlinesynthesis routes used to produce the final nanostructures. Template synthesis is a relatively newlinesimple and easy procedure which has made the fabrication of rather newlinesophisticated nanomaterials accessible to almost any laboratory. The larger interest in newlinenanostructure results from their numerous potential applications in various areas such as newlinematerials and biomedical sciences, electronic, optics, magnetism energy storage and newlineelectrochemistry. Different morphologies have been found to exhibit a broad range of newlineenhanced mechanical optical, magnetic and electronic properties compared to coarser-grained newlinematter of the same chemical composition. In this paper various template techniques suitable newlinefor nanotechnology applications with emphasis on characterization of created arrays of newlinetailored nanomaterials have been reviewed. These methods involve the fabrications of th