Figure 1.

SEM images ofaSnO2NWs with an average diameter of 50 nm grown on Au/Si(111) at 800 °C in an inert gas flow of 100 sccm Ar. No droplets exist among the NWsbSn droplets on Au/Si(111) deposited using the same temperature-time profile inabut in a steady gas flow of 250 sccm of NH3as opposed to Ar. A broad distribution in the sizes of the Sn droplets was obtained with diameters ≤5 μmcsimilar tobbut smaller Sn droplets with diameters ≤0.5 μm were obtained at 500 °C many of which are also elongated

Zervos and Othonos Nanoscale Research Letters 2009 4:1103-1109   doi:10.1007/s11671-009-9364-0