Isolated High-Purity Platinum Nanowire Growth via Field Emission from a Multi-Walled Carbon Nanotube

Isolated high-purity platinum nanowire growth was presented via field emission from the tip of a multi-walled carbon nanotube (MWCNT) with a precursor of cyclopentadienyl-trimethyl-platinum(IV) (CpPtMe3) inside a scanning electron microscope (SEM). A nanomanipulation system was used to adjust the gap between the anode (tungsten probe) and cathode (MWCNT) in order to control the nanowire growth length which achieved a platinum nanowire length of 1.18 mu m. The chemical composition of the platinum nanowire analyzed by energy-dispersive X-ray spectroscopy (EDS) shows that the purity of the platinum in the nanowire reaches 94.9 wt %. (C) 2011 The Japan Society of Applied Physics