Carbon nanofiber tubular structures

Semiconducting one-dimensional (ID) nanolibers or nanowires are of interest for a wide variety of applications including interconnects, functional devices, and molecular sensors as well as for fundamental physics studies. Devices have been fabricated fi om semiconductor, and carbon nanotubes, and more recently from ICP nanofibers. It has been predicted that ICP nanofibers will have unique electrical, optical, and magnetic properties [134]. Several different methods for producing these ICP nanofibers have been developed with or without the aid of a template. The template-based methods involve synthesizing a tubular structure of the ICP within the pores of a support membrane, such as an alumina membrane [135] or a track-etched polycarbonate membrane [136]. However, more recent work has... 

FIGURE 8.2 Different structures of carbon nanofibers (CNFs) (a) platelet structure, (b) herringbone structure, and (c) tubular structure. 

Nanotubes Hollow nanofibers. Carbon nanotubes consist of one or more cylindrical structures or shells, each composed of a single tubular graphitic layer. 

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