Room-temperature synthesis and characterisation of ion-induced iron-carbon nanocomposite fibres

Fabrication of Ion-Induced Carbon Nanocomposite Fibres and their Application to Magnetic Force Microscope Probes

“…As seen above, various kinds of metals, such as ferromagnetic metals, can be incorporated into ion-induced CNFs by a simultaneous supply of metals during Ar + -ion irradiation (Tanemura et al, 2005a;Tanaka et al, 2007;Wang et al, 2009;Wang et al, 2010a-c). If the metal incorporation is possible also for CNF probes, their magnetic, electrical, mechanical and chemical properties will be readily controllable, and thus their wider range of applications being realized.…”

“…The investigations along these lines are now being undertaken. Besides the probe applications, ion-induced pristine and composite CNFs are applicable to field electron emission devices (Tanemura et al, 2005b;Tanemura et al, 2005c;Tan et al, 2006;Sim et al, 2007;Wang et al, 2009). In addition, by using the ion (a) (b) www.intechopen.com Advances in Nanocomposites -Synthesis, Characterization and Industrial Applications 832 irradiation method, ZnO based composite nanoneedles for ultra violet laser emission Tanemura et al, 2006c;Yang et al, 2006;Tanemura et al, 2007) and spintronics devices (Herng et al, 2007;Herng et al, 2009) can be fabricated.…”

Crystallinity-controlled iron-carbon composite nanofibers—Synthesis and characteristic properties

“…We previously demonstrated that Fe-carbon composite nanofibers (Fe-CNFs) could grow on graphite substrates, which were irradiated by Ar + ions with a low Fe supply rate ( $ 1.0 nm/min), and were characterized only by amorphous nature [16,17]. However, according to the results reported by Fujita et al [18], the amorphous carbon pillars would be crystallized with Fe doping under focused ion-beam-induced condition.…”

“…Carbon nanofibers (CNFs) thus formed were 0.3-4 mm in length and 20-50 nm in diameter, and grew in the direction towards the incident ion beam. Delightedly, various kinds of metal-carbon composite nanostructures such as nanoprotrusions, nanocones/nanoneedles and nonofibers could be observed when graphite substrates were irradiated by ions with a simultaneous metal supply at room temperature [16,17]. Thus, low-energy ion irradiation provides another route for the fabrication of 1D composite nanostructures at low temperatures.…”