| 초록 |
The polymer semiconductor industry is under pressure from the need for eco-friendly processes and regulations on the emission of harmful solvents. And thus, we have researched to avoid using toxic organic solvents without sacrificing high semiconductor performances. In this study, we suggest a universal method of fabricating water-borne colloids of semiconducting polymers for use in environmentally benign processes involving organic electronics, without compromising the high charge carrier mobility of the polymeric semiconductors. Ionic surfactants that is soluble in ethanol were utilized as a key material to fabricate aqueous colloids of semiconducting polymers via a miniemulsion process. By developing smart surfactant engineering techniques, we could selectively remove surfactants after film deposition, rendering efficient inter-particle charge coupling. We introduced such surfactant engineering onto p-type and n-type donor-acceptor polymeric semiconductor with an inherently high charge carrier mobility, resulting in a high gain of 35 water-borne polymer complementary inverter circuit for the first time. |
