Abstract
The development of flexible transparent conductive electrodes has been considered as a key issue in realizing flexible functional electronics. Inkjet printing provides a new opportunity for the manufacture of FFE due to simple process, cost-effective, environmental friendliness, and digital method to circuit pattern. However, obtaining high concentration of inkjet- printed silver nanowires (AgNWs) conductive ink is a great challenge because the high aspect ratio of AgNWs makes it easy to block the jetting nozzle. This study provides an inkjet printing AgNWs conductive ink with low viscosity and high concentration of AgNWs and good printing applicability, especially without nozzle blockage after printing for more than 4 h. We discussed the effects of the components of the ink on surface tension, viscosity, contact angle as well as droplet spreading behavior. Under the optimized process and formulation of ink, flexible transparent conductive electrode with a sheet resistance of 32 Ω·sq−1–291 nm·sq−1 and a transmittancy at 550 nm of 72.5–86.3% is achieved. We investigated the relationship between the printing layer and the sheet resistance and the stability of the sheet resistance under a bending test as well as the infrared thermal response of the AgNWs–based flexible transparent conductive electrode. We successfully printed the coupling electrodes and demonstrated the excellent potential of inkjet-printed AgNWs—based flexible transparent conductive electrode for developing flexible functional electronics.
Highlights
Publisher’s Note: MDPI stays neutralIn recent years, printed electronics (PE) have been considered as an alternative to conventional silicon-based technology due to high manufacturing speed, large-area, low cost, environmental friendliness, and applicable to flexible functional devices [1–10].PE refers to the electronic product manufacturing technology that functional conductive inks are directly deposited onto substrate to form electronic component or circuit by printed process
Solvents are the important components of inks and play an important role in the Solvents are the important components of inks of and important role in the alcohol, absorheological properties and the stability inkplay
Lute ethanol, and water have been reported as suitable solvents for inkjet solute ethanol, Among and water have been reported as suitable solvents for inkjet printing them, ethylene glycol is moisturizer to control the evaporation rate of the
Summary
In recent years, printed electronics (PE) have been considered as an alternative to conventional silicon-based technology due to high manufacturing speed, large-area, low cost, environmental friendliness, and applicable to flexible functional devices [1–10]. Obtaining high-quality inkjetprinted patterns requires a comprehensive consideration of ink formulation, AgNW size, printing parameters, and heat treatment process [35–37]. Zhu et al reported that they fabricated AgNWs patterns on PET substrates by inkjet printer with the nozzle diameter of the printhead of 80 μm and they were still opaque [35]. We fabricated flexible transparent AgNWs conductive film on PET substrates and investigated the effects of the number printing layer, heat treatment temperature, drop frequency, and number of nozzle on the microstructures and photoelectric properties of. The formulated AgNWs ink has good printing adaptability and print smoothly for at least eight hours Printed patterns using this ink demonstrate good conductivity and transparency, which can be tuned by varying the printing layer. The AgNWs ink allows a single-step fabrication of this pattern, without the need for additional etching
Sign-in/Register to view highlights & summary 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.
