Abstract
Ag nanoflakes were synthesized by chemical reduction method using cetyltrimethylammonium bromide (CTAB) as a surfactant. The results of transmission electron microscope (TEM) analysis, ultraviolet-visible spectroscopic (UV-Vis) analysis, X-ray diffraction (XRD) analysis showed that the obtained Ag nanoflakes had size of ~50 – 60 nm, thickness of 16 nm, with flake shape reached 96 %. The particles crystallized in cubic structure of Ag. The Ag nanoflakes synthesized with pH = 4 were dispersed stably after 60 days from synthesis. The properties of the obtained Ag nanoflakes were suitable for using them as conductive particles in fabrication of functional inks for electrohydrodynamic printing technique.
Highlights
Ink-jet printing technology has a long development history Ag nanoparticles in the lines
3.1 The formation of Ag seed particles In this research, Ag nanoflakes were synthesized by chemical reduction method using cetyltrimethylammonium bromide (CTAB) as a surfactant
The Ag seed particles were synthesized by chemical reduction method using trisodium citrate (TSC) as a surfactant and sodium borohydride as a reducing agent
Summary
Ink-jet printing technology has a long development history Ag nanoparticles in the lines. The technique shows a potential to print metal electronic boards that open up various applications in fabrication of printed electronic boards, flat antennas, or RFID cards with fast and easy production at low cost. This technique shows a potential to print electrically conductive lines on flat surfaces and on 3D objects. We report a method to synthesize Ag nanoflakes with high concentration and suitable particle size for use as conductive material in conductive inks for ink-jet printing using electrohydrodynamic printing technique to print microelectronic boards. Electrical conductivity of inks depends on functional nanoparticles in the
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