Fig. 43

a Schematic illustration of steps involved in selective removal of metallic CNTs using thermocapillary effects. Adapted from [285]. b Corresponding AFM images of each step starting from growth of SWCNT arrays, followed by deposition of thermocapillary resist and etching of metallic SWCNTs. Adapted from [285]. c Schematic of the deposition of well-aligned CNTs on HfO₂ by means of the ion exchange process. Adapted from [286]. d Corresponding AFM image of the nanotubes deposited on a HfO₂ trench with a width of about 200 nm. Adapted from [286]