Structural and magnetic investigation of single wall carbon nanotube films with iron based nanoparticles inclusions synthesized by CVD technique from ferrocene/ethanol solution



In this work we study the formation of film containing randomly oriented single wall carbon nanotubes (SWNT) from ferrocene/ethanol solution by chemical vapour deposition technique. The Raman spectra recorded with 532 and 1064 nm excitation wave lengths demonstrate the availability of radial breathing modes together with good crystalline quality of nanotubes. The high resolution transmission electron microscopy (HRTEM) and scanning electron microscopy (SEM) studies show that SWNTs generally form bundles. Besides SWNTs electronic microscopy observations prove the presence of nanoparticles encapsulated in carbon shell. We use Mössbauer spectroscopy technique to evaluate local configuration of iron ions in the nanoparticles. Also we apply ferromagnetic resonance spectroscopy technique to confirm magnetic properties of synthesized SWNT films. (© 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)