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Amphiphilic Silver Nanoparticles for Inkjet-Printable Conductive Inks.

Authors :
Ivanišević, Irena
Kovačić, Marin
Zubak, Marko
Ressler, Antonia
Krivačić, Sara
Katančić, Zvonimir
Gudan Pavlović, Iva
Kassal, Petar
Source :
Nanomaterials (2079-4991); Dec2022, Vol. 12 Issue 23, p4252, 23p
Publication Year :
2022

Abstract

The large-scale manufacturing of flexible electronics is nowadays based on inkjet printing technology using specially formulated conductive inks, but achieving adequate wetting of different surfaces remains a challenge. In this work, the development of a silver nanoparticle-based functional ink for printing on flexible paper and plastic substrates is demonstrated. Amphiphilic silver nanoparticles with narrow particle size distribution and good dispersibility were prepared via a two-step wet chemical synthesis procedure. First, silver nanoparticles capped with poly(acrylic acid) were prepared, followed by an amidation reaction with 3-morpholynopropylamine (MPA) to increase their lipophilicity. Density functional theory (DFT) calculations were performed to study the interactions between the particles and the dispersion medium in detail. The amphiphilic nanoparticles were dispersed in solvents of different polarity and their physicochemical and rheological properties were determined. A stable ink containing 10 wt% amphiphilic silver nanoparticles was formulated and inkjet-printed on different surfaces, followed by intense pulsed light (IPL) sintering. Low sheet resistances of 3.85 Ω sq<superscript>–1</superscript>, 0.57 Ω sq<superscript>–1</superscript> and 19.7 Ω sq<superscript>–1</superscript> were obtained for the paper, coated poly(ethylene terephthalate) (PET) and uncoated polyimide (PI) flexible substrates, respectively. Application of the nanoparticle ink for printed electronics was demonstrated via a simple flexible LED circuit. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
20794991
Volume :
12
Issue :
23
Database :
Complementary Index
Journal :
Nanomaterials (2079-4991)
Publication Type :
Academic Journal
Accession number :
160739532
Full Text :
https://doi.org/10.3390/nano12234252