| 초록 |
The development of highly conductive, flexible metallic constituents in patterned geometries has been of paramount interest in various optoelectronic applications. Among a variety of materials, silver nanoparticles have been considered a candidate that meets the physical/chemical requirements for practical applications; but, the issues for applicability to roll-to-roll processes on inexpensive substrates have not been still resolved. In this study, we demonstrate that the highly flexible, rollable, printable Ag structures, with an electrical resistivity of 8.0 μΩ∙cm, are easily formed in a timescale of 10-3sec on polyethylene terephthalate and paper substrates, by supplying the highly intensive photon energies on olate-Ag nanoparticle assemblies. The precise control on the amount of carbon residues, by a virtue of sophisticatedly adjustable input of photon energies, allow for the formation of well-adhesive metallic films on plastic substrates, without incorporating any additional procedures, enabling for the extreme flexibility during 10,000 cycles at a bending radius of 1.5 mm. The continuous approach with a moving stage also suggests the potential toward a practical sintering process for instantly generating the highly flexible, conductive metallic architectures in a large area. |
