Synthesis, Properties, and Applications of Low-Dimensional Carbon-Related Nanomaterials

Figure 9

An (𝑛, 𝑚) SWCNT: roll-up vector 𝐶_ℎ=𝑛𝑎₁+𝑚𝑎₂ and chiral angle õ (for this special case, 𝑛=5, 𝑚=3; 𝑎₁ and 𝑎₂ are the primitive vectors of a graphene sheet) [180].