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. Author manuscript; available in PMC: 2009 Oct 13.
Published in final edited form as: Micro Nano Lett. 2009 Mar 1;4(1):27–33. doi: 10.1049/mnl:20080054

Fig. 1.

Fig. 1

Patterned carbon nanotube arrays (PCNTA) and their electropolymerized polypyrrole coating. The average as-grown CNTs (A) diameter was 120 nm. Electropolymerization was used to deposit polypyrrole, on the CNTs (B). To conduct electropolymerization, a PCNTA electrode was made by back-attaching to a glass and edge-sealing with epoxy (inset of B). Larger structures (C) were observed under scanning electron microscopy after 10 voltage cycles. The relationship of CNT-PPy diameters vs. the deposition voltage cycle numbers is shown in D. The scale bar shown in A and C is 1 μm.