Water-Ethylene Glycol Mediated Synthesis of Silver Nanoparticles for Conductive Ink

The drop on demand direct writing technology is the most efficient alternative to the traditional technologies for fabricating electronic devices on soft substrates. This piezo driven direct deposition technology requires preparation of a conductive ink comprising stable suspension of nanoparticles. In the present work, we have synthesized nearly mono-sized silver nanoparticles by chemical reduction method in presence of a capping agent for preparing conductive ink. The particle size distribution, viscosity and wettability (on the substrate) of the colloidal silver suspension were measured. The morphology of the silver nanoparticles was characterized by FESEM and TEM, respectively. (c) 2017 Elsevier Ltd. All rights reserved.