A novel kind of conductive inkjet filled with Ag nanorods

Microwave-assisted method was used to prepare Ag nanorods with uniform sizes. The influence of parameters such as the concentration of catalyst, the concentration ratio of surfactant and precursor was studied. A novel kind of conductive inkjet was prepared by using these Ag nanoreods as conductive filler. The performances of the conductive inkjet such as percolation threshold of the filler, bonding strength and ageing resistant were studied. The results show that a mixture with 95% Ag nanorods can be obtained when the concentration ratio of AgNO₃ to NaCl reaches to 5:1. The percolation threshold of the conductive inkjet is 62% when 95% Ag nanorods are included in the filler. The ageing resistant measurements results show that the changes of the electrical conductivity of conductive inkjet are less than 10% after ageing under 85%RH and 80℃ condition for 500 h.