A facile approach to a silver conductive ink with high performance for macroelectronics
1 School of Materials Science and Engineering, Changzhou University, Changzhou 201326, People’s Republic of China
2 Department of Biomedical Engineering, University of California Davis, Davis, CA 95616, USA
Nanoscale Research Letters 2013, 8:296 doi:10.1186/1556-276X-8-296Published: 25 June 2013
An unusual kind of transparent and high-efficiency organic silver conductive ink (OSC ink) was synthesized with silver acetate as silver carrier, ethanolamine as additive, and different kinds of aldehyde-based materials as reduction agents and was characterized by using a thermogravimetric analyzer, X-ray diffraction, a scanning electron microscope, and a four-point probe. The results show that different reduction agents all have an important influence on the conductive properties of the ink through a series of complex chemical reactions, and especially when formic acid or dimethylformamide was used as the reduction agent and sintered at 120°C for 30 s, the resistivity can be lowered to 6 to 9 μΩ·cm. Furthermore, formula mechanism, conductive properties, temperature, and dynamic fatigue properties were investigated systematically, and the feasibility of the OSC ink was also verified through the preparation of an antenna pattern.