Nanoink and printing technologies could enable electronics repairs, production in space

Phys.org  November 21, 2024 Commercially available inks designed and optimized for Electrohydrodynamic (EHD) are currently very limited. A team of researchers in the US (Iowa State University, University of Wisconsin – Madison) developed a new silver nanoink platform by synthesizing silver nanoparticles in situ with biobased polymer 2-hydroxyethyl cellulose (HEC). This approach significantly outperformed the traditional use of polyvinylpyrrolidone (PVP). The synthesized nanoinks produced precise, high-resolution features by EHD printing with smooth lines narrower than 5 μm. They developed a semiempirical model to reveal the relationship between printing resolution, ink properties, and printing parameters, enabling precise printing control, demonstrated its […]