Scanning Tunneling Microscopy and Spectroscopy of Nitrogen Doped Multi-Walled Carbon Nanotubes Produced by the Pyrolysis of Ferrocene and Benzylamine

Authors: Osváth, Z.; Koós, A. A.; Grobert, N.; Vértesy, Z.; Horváth, Z. E.; Biró, L. P.

Source: Journal of Nanoscience and Nanotechnology, Volume 9, Number 10, October 2009 , pp. 6139-6143(5)

Publisher: American Scientific Publishers

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Abstract:

In this work, carbon nanotube samples were produced by aerosol chemical vapour deposition from a solution of ferrocene in benzylamine. The multi-walled nanotubes produced by this method were investigated by TEM, SEM/EDS, scanning tunneling microscopy (STM) and tunneling spectroscopy (STS). The dI/dV curves obtained from the STS measurements showed asymmetric density of states (DOS) in nanotubes, with higher DOS above the Fermi energy. These STS measurements and the EDS analysis indicate successful doping with nitrogen originating from the decomposition of benzylamine.

Keywords: AEROSOL CHEMICAL VAPOUR DEPOSITION; DOPED CARBON NANOTUBES; SCANNING TUNNELING MICROSCOPY; STM

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2009.1569

Publication date: October 1, 2009

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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