Inkjet printed transparent conductive films using water-dispersible single-walled carbon nanotubes treated by UV/ozone irradiation

Conductive Nanomaterials for Printed Electronics

“…Various methods, similar to those described above for graphene films obtaining, were also used for the preparation of flexible transparent CNT films: rod‐coating, spin‐coating, spray‐coating, dip‐coating, drop‐casting, vacuum filtration followed by transferring onto a proper substrate, electrophoretic deposition followed by hot pressing transfer, and inkjet printing . As in the case of metal NWs and graphene sheets, both sheet resistance and transmittance are thickness‐dependent, and CNT films with a thickness of 10–100 nm, possessing high electrical conductivity and optical transmittance, were reported .…”

“…As in the case of metal NWs and graphene sheets, both sheet resistance and transmittance are thickness‐dependent, and CNT films with a thickness of 10–100 nm, possessing high electrical conductivity and optical transmittance, were reported . Usually, SWCNTs are used for the fabrication of conductive transparent films, and electrical conductivity and transparency of such films on glass and plastic substrates are typically in the range of 60–870 Ω/□ and 70–90% respectively, depending on CNT dispersion, film thickness and method of preparation …”

“…CNT inks for conductive printing can be formulated by combining the above dispersions with suitable additives, according to the required printing method, and in order to improve printing performance. Liquid vehicles are water, organic solvents such as DMF, N ‐methyl‐2‐pyrrolidone, and γ‐butyrolactone, as well as solvent mixtures . Typically, the content of CNTs in ink formulations is in a wide range of concentrations, 0.01–10 g L ‐1 .…”

Solution processed large area fabrication of Ag patterns as electrodes for flexible heaters, electrochromics and organic solar cells

“…However, as the design and feature size of printed electrodes depend on the type of application, one need not always resort to high-end lithography techniques. For mass printing purposes, roll-to-roll flexography, 16 screen printing 17 and inkjet printing [18][19][20] have been employed with resolution down to few microns. 21 However, these techniques require expensive instrumentation.…”

Inkjet printed nanomaterial based flexible radio frequency identification (RFID) tag sensors for the internet of nano things

“…The PEDOT-PSS/SWCNT-COOH composite patterns showed a sheet resistance of 10 kU sq À1 and 90% optical transmittance. Lee et al 209 prepared water-based SWCNT inks for inkjet printing. The SWCNT surfaces contained oxygen-containing groups, which increased the dispersion stability, using the UV/ozone treatment.…”