(Color online) (a) Diagram of the CNT forest densification process; (b) SEM image showing the alignment within the sidewall of the pristine CNT forest after growth, with inset photograph showing the delaminated forest on the silicon substrate (scale: 5 mm); (c) Densified morphology of the CNT forest sidewall after wetting and evaporation of ethanol, with inset SEM image showing the entire densified forest (scale: 1 mm); (d) Close up SEM image of the densified morphology, showing the high density and alignment of the individual bundle.
Desmeared USAXS data of (a) pristine CNT forest and (b) densified CNT forest. The model fit for each data set is shown with a solid line. The contributions from all terms to the total model fit are shown in the supplementary material (Ref. 46).
(Color online) One-dimensional schematic of CNT self-assembly due to elastocapillary aggregation.
The densified CNT bundle diameter as a function of LS , computed from Eqs. (5) and (6). Details on the calculation of the CNT bundle diameter can be found in the supplementary material (Ref. 46).
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