Near-room temperature sintering of inkjet printed silver patterns drs. Ing. Glen Vandevenne

Inkjet printing of Ag-inks Nanoparticle based inks Ag nanoparticles capped with a polymer layer Molecular precursor inks Ag+ complexes

Sintering Nanoparticle “high” temperature > 200 °C Molecular precursor low temperature 60 °C Ag+  Ag counterion removal solvent removal capping release particle sintering

Sheet resistance Nanoparticle 10 m/□  Molecular precursor 17 /□ 6 layers 8 layers 10 layers Glass PET-foil

Roughness Nanoparticle OK Molecular precursor too high

Conclusions Low temperature sintering: 60 °C PET-foil Heat sensitive devices Acceptable sheet resistances achieved Roughness subject further research

Visit my poster at D5 Functional Materials Engineering prof. dr. ir. Wim Deferme Inorganic Physical Chemistry Wouter Marchal prof. dr. Marlies K. Van Bael prof. dr. An Hardy