| 초록 |
Two steps were adapted to obtain high conductivity and water solubility of PANI. First, self-assembly supramolecules (SAS) were blended with PANI to improve crystallinity. Second, poly (styrenesulfonic acid) (PSSA), hydrophilic polymer, was grafted on the PANI surface to improve dispersion in aqueous solutions and to increase the conductivity of PANI through a self-doping system. As a result, the conductivity of PANI based film could be improved and reached to 0.81 S/cm. The conductivity of PANI/SAS16-gr-PSSA is higher than that of poly (3,4-ethylene dioxythiophene):poly (styrenesulfonate) (PEDOT:PSS) (0.01 S/cm) and PANI-gr-PSSA (0.17 S/cm). The OSCs device fabricated by the PANI based HTL prepared in this study shows a high power conversion efficiency of approximately 3.4%, which is higher than that of OSCs with PEDOT:PSS (2.8%) and PANI-gr-PSSA (3.0%) layer. This research was supported by the National Research Foundation of Korea (Project No. 2011-0003694). |
