Screen-Printing Method for Creating Silver-Nanowire Patterns

  • Author: ChemistryViews.org
  • Published: 17 May 2020
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA
  • Source / Publisher: ACS Applied Materials & Interfaces/ACS Publications
  • Associated Societies: American Chemical Society (ACS), USA
thumbnail image: Screen-Printing Method for Creating Silver-Nanowire Patterns

Wearable electronic devices need components that are bendable and stretchable. This can be achieved, for example, with silver nanowires (AgNWs), which are electrically conductive and retain this property when they are deformed. Fully coating a stretchable material with AgNWs to create a conductive film is fairly simple. Creating AgNW patterns for specific applications is more challenging. Existing methods either require expensive equipment, cannot create high-resolution patterns, or have limited substrate scopes.


Wei Yuan, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Fushan Li, Fuzhou University, China, and colleagues have developed a new method for patterning AgNWs that combines two simple techniques: screen printing and vacuum filtration. The team first created a patterned screen stencil. This stencil was then used to screen-print the negative of the pattern onto a poly(tetrafluoroethylene) (PTFE) filter membrane, using liquid poly(dimethylsiloxane) (PDMS) to create an elastic mask. Finally, an AgNW dispersion is vacuum-filtered through the membrane. The nanowires are deposited only on the uncovered area of the membrane not protected by the PDMS, and thus, form the desired pattern.


The resulting AgNW films can be transferred to PDMS surfaces to create stretchable, transparent, patterned conductive films. These films have high optical transparency, low sheet resistance, and good mechanical flexibilitiy. They can, for example, be used as electrodes to create elastic electroluminescent displays.


 

 

Article Views: 454

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

Bookmark and Share

If you would like to reuse any content, in print or online, from ChemistryViews.org, please contact us first for permission. more


CONNECT:

ChemistryViews.org on Facebook

ChemistryViews.org on Twitter ChemistryViews.org on YouTube ChemistryViews.org on LinkedIn Sign up for our free newsletter


Magazine of Chemistry Europe (16 European Chemical Societies)published by Wiley-VCH