7-days of FREE Audio papers, translation & more with Prime
7-days of FREE Prime access
7-days of FREE Audio papers, translation & more with Prime
7-days of FREE Prime access
https://doi.org/10.1016/j.apsusc.2020.148609
Copy DOIJournal: Applied Surface Science | Publication Date: Nov 28, 2020 |
Citations: 25 |
Printable flexible electronics are gaining attention day by day over the last few years due to the increasing demand for wearable electronics. Copper-based conductive inks are the most promising material for printing flexible electronics due to their high conductivity and cost-effectiveness. However, high-temperature sintering under reductive environment, rapid oxidation in the air and poor bending stability are the big constrains in the widespread utilization of copper inks. Herein we describe a facile method for fabrication of flexible conductive PET film under ambient air using as-synthesized citrate-capped copper nanoparticles. Sodium alginate paste (made in hydrazine) was used as a sintering aid to make the film conductive at low heating temperature. The citric acid capping protects the particles from oxidation while esterification with sodium alginate contribute to mechanical stability. The achieved resistivity of 74.4 ± 9 × 10−2 μΩ m is way better than reported in literature considering ambient air sintering under 60 ○C with improved adhesion, to the best of our knowledge. Persistent current flow even after 2500 bending cycles (not reported before) shows the exceptional mechanical stability of our film against bending, while the utilization of facial screen-printing fabrication technology made the process commercially viable and cost-effective.
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.