Self-Assembled Nanosilicon/Siloxane Composite Films

Sonochemistry and Other Novel Methods Developed for the Synthesis of Nanoparticles

“…Papadimitrakopoulos and coworkers reported on transparent Si/SiOx nanocomposite films, spontaneously adsorbed on glass or quartz substrates from their colloidal suspensions via a sonication-assisted oxidation process [56]. Individual nanosilicon particles (ca.…”

Synthesis of a Thermally Stable Silica/p-Anisidine Sol–Gel Powdered Material

“…The organic coverage obtained by the grafting technique depends on the physical prop-erties of the commercial silica powders that will be used as support, such as surface area, particle size, and pore diameter. In recent years new procedures for obtaining chemically modified silica powders using sol-gel synthesis have been described (10)(11)(12)(13)(14)(15). This method is based on hydrolysis and polycondensation of tetraethylorthosilicate (TEOS) in water and ethanol solution also containing the organosilane precursor.…”

Solution Synthesis of Ultrastable Luminescent Siloxane-Coated Silicon Nanoparticles

“…This paper presents the silanization of silicon nanoparticles giving siloxane-coated Si NPs (the same as silanized Si NPs or silanization-terminated Si NPs hereafter). Silanization has been widely used to alter the surface characteristics of various kinds of nanoparticles, such as CdSe NPs and Au NPs, with good success. ,, Silanization has also been used to modify the surface of nanostructured Si and Si NPs. − These reactions utilize the fact that the surface of the silicon already has an oxide coating. This is the first time that a silanization method has been applied in situ to Si NPs with a nonoxidized surface that are synthesized via a room-temperature solution route.…”