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Mixed assembly of ferrocene/porphyrin onto carbon nanotube arrays towards multibit information storage

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6 Author(s)
Jingxian Yu ; Sch. of Chem., Flinders Univ., Bedford Park, SA ; Mathew, S. ; Flavel, B.S. ; Quinton, Jamie S.
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Ruthenium porphyrin functionalised single-walled carbon nanotube arrays have been prepared using coordination of the axial position of the metal ion onto 4-aminopyridine pre-assembled single-walled carbon nanotubes directly anchored to a silicon(100) surface (SWCNTs-Si). The formation of these ruthenium porphyrin functionalised single-walled carbon nanotube array electrodes (RuTPP-SWCNTs-Si) has been monitored using infra-red spectroscopy (IR), differential pulse voltammetry (DPV), and cyclic voltammetry. Mixed assembly of ferrocene/porphyrin onto carbon nanotube arrays has been achieved by altering the ratio of two redox-active species in the deposition solution. These results suggest these ruthenium porphyrin modified electrodes are excellent candidates for molecular memory devices.

Published in:

Nanoscience and Nanotechnology, 2008. ICONN 2008. International Conference on

Date of Conference:

25-29 Feb. 2008