UV crosslinkable emulsions with silver nanoparticles for inkjet printing of conductive 3D structures

Michael Layani, Ido Cooperstein, Shlomo Magdassi*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

43 Scopus citations

Abstract

3D conductors are developed by inkjet printing a UV curable ink composed of oil-in-water emulsion combined with a dispersion of silver nanoparticles. Upon UV radiation by LED light the droplets immediately polymerize and form solid structures with embedded silver nanoparticles. The unique composition of the new ink enables sintering of the silver nanoparticles at room temperature by contact with NaCl solution, leading to a conductivity of 1.9 × 10 6 S m-1 while maintaining the 3D structure. The aspect ratio for photo-polymerized printed lines is more than 10 times larger than that of non-irradiated lines. The emulsion-dispersion new inks are potential materials for 3D fabrication of conductors and other functional materials in printed electronics.

Original languageAmerican English
Pages (from-to)3244-3249
Number of pages6
JournalJournal of Materials Chemistry C
Volume1
Issue number19
DOIs
StatePublished - 2013

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