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We show that W18O49 nanoneedles may be prepared by thermal vapor deposition without catalyst. Field emission measurement has been carried out and it is found that this new W18O49 nanostructure has much better field emission property than W18O49 nanowires.
Summary form only given. We present a theoretical model describing a plasma-assisted growth of carbon nanofibers (CNFs), which involves two competing channels of carbon incorporation into stacked graphene sheets: via the surface diffusion and through the bulk of the catalyst particle (on top of a nanofiber) and accounts for a range of ion- and radical-assisted processes on the catalyst surface. Using...
Silicon nanorods have been grown by chemical vapor deposition of silane, using both gold and indium as catalysts for the vapor liquid solid (VLS) process. Conditions for optimal rod morphology for each catalyst were identified by varying silane partial pressure and temperature in the range P=0.05-1 Torr and T=300-600 degC, respectively. In most cases, catalyst particles were formed by partial de-wetting...
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