Highly Conductive, Transparent Flexible Films Based on Metal Nanoparticle-Carbon Nanotube Composites
Figure 8
(a) Schematic view of equipment we designed that combines an ultrasonic atomizer with a spin-coating apparatus for fabricating MNP-CNT TCFs. The CNT solution 1 is atomized at a supersonic atomizing frequency to form atomized particles 2 of various sizes, including the CNTs. Specifically, 1 is contained in an atomizing container 4 and is maintained at a constant level using a siphon 5 that connects 4 with a reservoir 9. Thus, a supersonic atomizing member 6 that generates the supersonic atomizing frequency is maintained at a constant depth below the level of 1 to produce the atomized particles 2 of desirable particle size. 9 is placed on an elevating device 10. The levels 1 in 4 can be controlled by adjusting the height of 10. Preferably, 9 can be provided with a probe-type sonicator (not shown) to maintain a homogeneous dispersion of 1 in 9. A carrier gas 3 is provided to carry 2 to a substrate 7 placed on a spin-coating equipment 8 for the formation of conductive, thin CNT films. (b) Au-MWCNT TCFs and (c) AgPt-MWCNT TCFs prepared from ultrasonic atomization with the spin-coating method.
