الفهرس 
INTRODUCTION AND LITERATURE REVIEWOnly 14 pages are availabe for public view
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Abstract
Hybrid nanostructures exhibit unique physical properties that are not found in their bulk counterpart. The combination of a metal and a semiconductor in the same nanocrystal is of particular interest from both fundamental and technological points of view. The synthesis structure which contains plasmonic metallic core particles such as silver (Ag) and a shell of CdSe semiconductor has the combined properties of quantum dots (QDs) and metallic properties. The semiconductor nanoparticles such as CdSe with different particle size have been synthesized by organometallic pyrolysis method. The X-Ray diffraction pattern of semiconductor quantum dots shows a pure wurtzite structure. The absorption and emission spectra of QDs at different sizes have been investigated during the course of chemical preparation. The particle sizes have been estimated from the optical spectra using the effective mass approximation model (EMA), and compared to the sizes of QDs measured by high-resolution transmission electron microscope (HR-TEM).