SEM and TEM images. (a) SEM image of the CNT carpet at low magnification. SEM images at high magnification showing (b) the entangled CNT structure on the top of the carpet and (c) the aligned structure along the carpet. TEM images of the MWCNTs (d) before and (e) after annealing.
Souier et al. Nanoscale Research Letters 2012 7:630 doi:10.1186/1556-276X-7-630