| 초록 |
Stamping transfer process for fabricating organic electronics has recently been demonstrated to improve device performance because it allows the control of morphology, and transfer of various materials. In this research, organic flexible solar cells with enhanced cell performance and mechanical durability were fabricated by performing a simple dry transfer of a PEDOT:PSS layer with polystyrene nanoparticles (PS NPs). The power conversion efficiency of PTB7:PC71BM based on flexible device prepared by transferring of PEDOT:PSS with PS NPs was 5.71%, which was higher than that of the spin-cast device (5.37%). Enhanced performance was attributed to controlled surface morphology of the PEDOT:PSS using the dry transfer. Especially, we have found remarkable improvement on mechanical stability of flexible device with PS NPs. The introduced PS NPs allowed the flexible device to tolerate higher mechanical deformations by enhancing the mechanical toughness of the PEDOT:PSS. |
