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| - Silicon−Silica Nanowires, Nanotubes, and Biaxial Nanowires: Inside,Outside, and Side-by-Side Growth of Silicon versus Silica on Zeolite
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| - Three distinct types of composite nanowires and nanotubes of (crystalline) silicon and (amorphous) silica were grown on zeolite Y via the disproportionation of SiO by thermal evaporation: 1, a silicon nanowire inside a silica nanotube; 2, a silicon nanotube outside a silica nanowire; and 3, side-by-side growth of a biaxial silicon−silica nanowire structure. These silicon nanostructures exhibit unusually intense photoluminescence.
- It was demonstrated that zeolite can be used as a pseudo-template to grow very fine and uniform siliconnanostructures via disproportionation reaction of SiO by thermal evaporation. Three distinct types of compositenanowires and nanotubes of silicon and silica were grown on the surfaces of zeolite Y pellets. The first type isformed by an ultrafine crystalline silicon nanowire sheathed by an amorphous silica tube (a silicon nanowire insidea silica nanotube). The second type is formed by a crystalline silicon nanotube filled with amorphous silica (asilicon nanotube outside a silica nanowire). The third type is a biaxial silicon-silica nanowire structure with side-by-side growth of crystalline silicon and amorphous silica. These silicon nanostructures exhibit unusually intensephotoluminescence (in comparison to ordinary silicon nanowires).
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