| 초록 |
Environmentally benign processing technology of polymeric semiconductor is demonstrated to facilitate industrial application of organic electronics. By employing sodium dodecyl sulfate (SDS) as a surfactant and Poly[2,5-bis(3-tetradecylthiophen-2-yl)thieno[3,2-b]thiophene] (PBTTT) as a polymeric semiconductor, a water-borne colloid was synthesized and used for forming the active layer of a field effect transistor. In this work, by utilizing the liquid crystalline nature of the PBTTT, we identified the optimal thermal treatment condition ( 270 C), which is sufficient both for eliminating the SDS and stimulating a second phase transition of the PBTTT. As a result, the PBTTT nanoparticle film cast from the water-borne colloid was successfully sintered to form continuously p–p stacked polymeric semiconductor films, whose high charge carrier mobility of 0.19 cm2/Vs, is comparable to those of organic solvents. |
