[18a-A204-1~10] 12.3 Functional Materials and Novel Devices

[18a-A204-5] Development of elastomer/metal particle-composited sinter-free printable, stretchable conductive inks

〇(B)Takenori Nakanishi¹, Kento Yamagishi², Shinji Takeoka^1,2, Eiji Iwase³, Hiroyasu Iwata⁴, Toshinori Fujie^5,6 (1.Sch. Adv. Sci. Eng., Waseda Univ., 2.Grad. Sch. Adv. Sci. Eng., Waseda Univ., 3.Grad. Sch. Fnd. Sci. Eng., Waseda Univ., 4.Grad. Sch. Cre. Sci. Eng., Waseda Univ., 5.WIAS, Waseda Univ., 6.JST PRESTO)

Keywords:conductive material, stretchable material, printing

In thin film flexible electronics, development of stretchable conductor is important. In this research, for the purpose of development of sinter-free printable, stretchable conductive inks, SBS/Ag ink was prepared by compositing polystyrene-block-polybutadiene-block-polystyrene and silver flake in organic solvent and its electrodynamic physical properties was evaluated. The SBS/Ag ink wiring formed by stencil-printing showed conductivity (0.65 ± 0.12 Ω/sq) at room temperature drying for 10 minutes and had stretchability of more than 30%.