Nanocrystalline particle technology

This review is a discussion of the kinetic modelling of the photoelectrochemistry of colloidal semiconductor systems. This area is currently attracting significant attention from the scientific community due to the applications of colloidal semiconductors within two rapidly advancing research fronts heterogeneous photocatalysis and nanocrystalline particle technology. 

The technological potential of titanium oxide has tremendously increased due to enhancement in functional properties, when present in nanocrystalline form, and suitability for solar cell, photochemical, and optical applications. The most widely reported precursors for the synthesis of TiOz particles and films are titanium halides... 

The pol5mier nanocomposite field has been studied heavily in the past decade. However, polymier nanocomposite technology has been around for quite some time in the form of latex paints, carbon-black filled tires, and other pol5mier systems filled with nanoscale particles. However, the nanoscale interface nature of these materials was not truly understood and elucidated until recently [2 7]. Today, there are excellent works that cover the entire field of polymer nanocomposite research, including applications, with a wide range of nanofillers such as layered silicates (clays), carbon nanotubes/nanofibers, colloidal oxides, double-layered hydroxides, quantum dots, nanocrystalline metals, and so on. The majority of the research conducted to date has been with organically treated, layered silicates or organoclays. 

Nanophase Technology Corporation has developed a silver-doped nanocrystalline tin oxide aimed at antimicrobial and conductive apphcations. It consists of particles in the 30 nm size range with a silver content of 3%. The company expects to develop similar products. 

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