Figure 6

Diameter distribution of the SWCNTs grown from BNNFs.

(a) Diameter distribution from HRTEM observations, demonstrating that the diameters of the SWCNTs are mostly distributed in discrete steps which correspond to multiples of the BN (002) interplanar spacing. (b) RBM peaks of the Raman spectra of SWCNTs (from six different samples), showing a major peak at around 190 cm⁻¹ and a minor peak at around 127 cm⁻¹, corresponding to nanotube diameters of 1.34 nm and 2.00 nm, respectively.