Adhesion nanoarchitectonics of inkjet-printed silver nanoparticles on various substrates after furnace sintering

Abstract

The adhesion behavior of inkjet-printed silver nanoparticles (Ag NPs) on various substrates was investigated after furnace sintering at various temperatures. Glass, polyimide, and polyethylene naphthalate substrates were used to examine the effect of the substrate on the adhesion behavior of inkjet-printed Ag NPs. The adhesive forces were estimated using a scratch test. The critical load and shear stress were determined via a microscratch test. The critical shear stress varies according to the adhesion characteristics of each substrate. Cross-sectional images were obtained using a focused ion beam to investigate the morphologies at the boundaries between the sintered ink line and substrates.