Abstract
Flexible electrically conductive nanowires are now a key component in the fields of flexible devices. The achievement of metal nanowire with good flexibility, conductivity, compact and smooth morphology is recognized as one critical milestone for the flexible devices. In this study, a two-beam laser direct writing system is designed to fabricate AgNW on PET sheet. The minimum width of the AgNW fabricated by this method is 187 ± 34 nm with the height of 84 ± 4 nm. We have investigated the electrical resistance under different voltages and the applicable voltage per meter range is determined to be less than 7.5 × 103 V/m for the fabricated AgNW. The flexibility of the AgNW is very excellent, since the resistance only increases 6.63% even after the stretched bending of 2000 times at such a small bending radius of 1.0 mm. The proposed two–beam laser direct writing is an efficient method to fabricate AgNW on the flexible sheet, which could be applied in flexible micro/nano devices.
Highlights
Over the past few years, there has been increasing attention on micro/nano devices on flexible substrate due to the unique potential for flexible electronics such as sensory skins for robotics, structural health monitors, wearable communication devices, and so on[1,2,3,4]
We have investigated the electrical resistance under different voltages and the applicable voltage per meter range, which is determined to be less than 7.5 × 103 V/m for the fabricated AgNW
A mode-locked Ti:Sapphire laser system (Tsunami, Spectra-Physics) with a center wavelength of 780 nm, a pulse width of 120 fs, and a repetition rate of 80 MHz is used as the pulse laser excitation source, mainly induces the multiphoton photoreduction of Ag nanoparticles
Summary
Over the past few years, there has been increasing attention on micro/nano devices on flexible substrate due to the unique potential for flexible electronics such as sensory skins for robotics, structural health monitors, wearable communication devices, and so on[1,2,3,4]. The fabrication of the metal nanowire with good flexibility, excellent conductivity, compact and smooth morphology is urgently demand for manufacturing the flexible electronic devices. As a material-conserving deposition approach[22], the inkjet printing technique has been used to fabricate nanowires and devices of different conductive materials on the flexible substrate[23,24]. The achievement of compact and smooth metal nanowire with excellent conductivity on the flexible substrate is still a challenge. Compared to the AgNW without bending, the resistance hardly changes even after stretched bending of 2000 times at such a small bending radius of 1.0 mm This proposed protocol for fabricating conductive AgNW of excellent flexibility would open up new avenues for the further application in flexible micro/nano devices
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: 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.
