Beilstein J. Nanotechnol.2015,6, 353–360, doi:10.3762/bjnano.6.34
analysis (see Experimental section), we estimated the pore radius ρ and the bundlediameter d of the SWCNT and MWCNT random networks. The obtained results are reported in Table 1 together with the SWCNT microstructure area S and height h. However, in the case of MWCNT films, no microstructures were
) and analyzed in order to measure carbon nanotube bundlediameter, network pore, and microstructure feature (height and area) distributions. A statistical analysis of these quantities was performed and the values reported in Table 1 were estimated by taking the quantity distribution mode values and
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Figure 1:
Scanning electron micrographs of SWCNT (a,c) and MWCNT (b,d) films at different magnifications 200,...
Beilstein J. Nanotechnol.2012,3, 692–702, doi:10.3762/bjnano.3.79
: bundlediameter; sheet resistance; SWCNT; thin film; transmittance; Introduction
Single-walled carbon nanotubes (SWCNT) offer great application potential in future electronics, such as micro-electromechanical devices [1], sensors [2][3], transparent electrodes [4][5][6], thin-film field-effect
nongeometric factors (i.e., junction resistances or contact barriers), the data can be normalized by eliminating the contributions of variations in bundlediameter and length.
According to the Beer–Lambert law, for films of a given thickness (d), absorbance (A) depends linearly on the concentration (C) of
resistive properties of the junctions.
Given that the average bundle length, Lbundle, and the average number density of bundles in the network, ρbundle, remain constant, the average bundlediameter, dbundle, dictates the total concentration of carbon. This is best depicted by the illustration in Figure 8
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Figure 1:
SEM images of as-prepared SWCNT networks dry-transferred onto the aluminium substrate. From top lef...