ABSTRACT
SWCNTs can be considered to be formed by rolling of a single layer of graphite (called graphene) into a seamless cylinder, schematically represented in Figure 3.1. Similarly, a multiwalled carbon nanotube (MWCNT) is a coaxial assembly of cylinders of SWCNTs, one within another. Generally, nanotubes have a length-to-diameter ratio of more than 1000. Therefore, these can be considered as nearly one-dimensional structures and accordingly their properties vary with structure [2].
