A Method to Prepare Silver Nanoparticles for Inkjet Inks Capable of Sintering at Low Temperature

摘要

We have been studying a method to prepare silver nanoparticles. At NIP26 we reported a new method to prepare silver nanoparticles of a diameter less than 10 nm with no organic solvent and complicated separation, in which amine compounds have the effect on the growth process of silver nanoparticles. In this study, the effect of dispersing agents such as sodium gluconate is investigated. We have tried to prepare the silver nanoparticles by using dispersing agents of low molecular weight compound instead of polymer. Similarly, nanoparticles of a diameter less than 10 nm can be obtained. This procedure of producing silver nanoparticles leads to a fall in sintering temperature. It is expected that the manufacturing of electronic circuits can be achieved at relatively low temperature with inks prepared in this study.