Synthesis of Nano Silver Containing Inks for Printable Electronic Circuits Applications

Abstract

The aim of this research is to produce conductive Ag nanoparticles ink, which was in the sight of attention due to the proper conductivity, the ability to print on the flexible substrate, its low cost, also several usages in electronic industries. Ag nanoparticles were synthesized by chemical reduction of silver nitrate by using ethanol at two different temperatures of 65 and 70 ˚C. Dispersed nanoparticles in ethanol and water solutions were then characterized. The prepared inks were analysed by means of the nanoparticles size analysis, DTA and XRD. Nanoparticle size examinations were performed as synthesized and 45 days after. The nanoparticles size results showed the nanoparticles dispersed in ethanol were smaller compared to those of water. Moreover, increasing in the synthesized temperature has caused the coarser nanoparticles. According to the obtained results, ethanol was more appropriate medium, as the synthesized ink was more stable. XRD and DTA results approved the presence of Ag nanoparticles dispersed in the ink.