Nanocomposites optical/electronic characteristics

Noble metal nanoparticles dispersed in insulating matrices have attracted the interest of many researchers fromboth applied and theoretical points of view [34]. The incorporation of metallic nanoparticles into easily processable polymer matrices offers a pathway for better exploitation of their characteristic optical, electronic and catalytic properties. On the other hand, the host polymers can influence the growth and spatial arrangement of the nanoparticles during the in situ synthesis, which makes them convenient templates for the preparation of nanoparticles of different morphologies. Furthermore, by selecting the polymer with certain favorable properties such as biocompatibiHty [35], conductivity [36] or photoluminescence [37], it is possible to obtain the nanocomposite materials for various technological purposes. 

Nanocomposites involving noble metals nanoparticles and assisted by natural polysaccharide have been fabricated. The plasmon resonance absorption due to nanoparticles has been shown by the method of electronic spectroscopy. Regularities of their formation with target optical characteristics to design new optical materials have been established. 

Conjugated polymer-metal or metal oxide nanocomposite is a new class of material that combines the advantages of both organic polymer material and inorganic metal or semiconductor oxide. For conjugated polymer/ metal or metal oxide nanocomposites systems the electron-rich polymer often acts as a chemical receptor or scaffold for the secondary component metal or metal oxide. Moreover, such finely disperse secondary species in the polymer ensures high surface area and possible enhancement of the unique sensing characteristics of the composite. Those nanocomposites show improved optical, electrical, and mechanical properties for... 

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