Jump to main content
Jump to site search

Issue 46, 2011
Previous Article Next Article

Formation of conductive silver films via inkjet reaction system

Author affiliations


A new method is described for conductive silver film formation. An inkjet printing device with two ink channels was used to deposit silver thin films. Two inks, silver ammonia and formaldehyde solutions, were separately ejected, mixed, and reacted on glass slides. The so-called silver mirror reaction created smooth and continuous silver lines of 90 micron in width with an average film thickness of 200 nm. Surface profilometry was used to measure the thicknesses and cross section areas of printed silver lines. The electrical conductivity of the resulting silver lines is 6% of bulk silver at room temperature. After sintering at 150 °C for an hour, electrical conductivity was enhanced to 14%. Scanning electron microscopy (SEM) showed that the microstructure of the printed thin films consists of nanoparticle grains of 50 to 200 nanometres. Results of X-ray diffraction (XRD) and Energy-dispersive X-ray spectroscopy (EDS) further confirmed our printed films purely comprised of face-centered cubic (FCC) silver crystalline. The printed conductive lines could be used for various applications, such as embedded printed circuit boards, micro-electromechanical systems (MEMS), and radio frequency identification (RFID) tags.

Graphical abstract: Formation of conductive silver films via inkjet reaction system

Back to tab navigation

Article information

23 Jul 2011
19 Sep 2011
First published
24 Oct 2011

J. Mater. Chem., 2011,21, 18799-18803
Article type

Formation of conductive silver films via inkjet reaction system

Z. Kao, Y. Hung and Y. Liao, J. Mater. Chem., 2011, 21, 18799
DOI: 10.1039/C1JM13506F

Search articles by author