E-Textile by Printing an All-through Penetrating Copper Complex Ink

Yousef Farraj, Aviad Kanner, Shlomo Magdassi*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Wearable electronics is an emerging field in academics and industry, in which electronic devices, such as smartwatches and sensors, are printed or embedded within textiles. The electrical circuits in electronics textile (e-textile) should withstand many cycles of bending and stretching. Direct printing of conductive inks enables the patterning of electrical circuits; however, while using conventional nanoparticle-based inks, printing onto the fabric results in a thin layer of a conductor, which is not sufficiently robust and impairs the reliability required for practical applications. Here, we present a new process for fabricating robust stretchable e-textile using a thermodynamically stable, solution-based copper complex ink, which is capable of full penetrating the fabric. After printing on knitted stretchable fabrics, they were heated, and the complex underwent an intermolecular self-reduction reaction. The continuously formed metallic copper was used as a seed layer for electroless plating (EP) to form highly conductive circuits. It was found that the stretching direction has a significant role in resistivity. This new approach enables fabricating e-textiles with high stretchability and durability, as demonstrated for wearable gloves, toward printing functional e-textile.

Original languageAmerican English
Pages (from-to)21651-21658
Number of pages8
JournalACS applied materials & interfaces
Volume15
Issue number17
DOIs
StatePublished - 3 May 2023

Bibliographical note

Publisher Copyright:
© 2023 The Authors. Published by American Chemical Society.

Keywords

  • copper complex
  • copper ink
  • e-textile
  • printed electronics
  • wearable electronics

Fingerprint

Dive into the research topics of 'E-Textile by Printing an All-through Penetrating Copper Complex Ink'. Together they form a unique fingerprint.

Cite this