| 초록 |
The hole-transpoting material (HTM) in perovskite solar cells (PSC) is a key component of the device to achieve high performance and long-term stability by oxygen and moisture. Among HTMs, the polymeric HTMs have attracted considerable attention due to their processability, thermal and mechanical stability, and higher intrinsic hole mobility.In this study, π-conjugated random terpolymers were synthesized by Stille cross-coupling polymerization of 4,7-Di-2-thienyl-2,1,3-benzothiadiazole (DTBT) acceptor with silaindacenodithiophene (SIDT) and pyrroloindacenodithiophene (NIDT) donor units. The new developed polymeric HTMs with various copolymer compositions possess a high hole mobility, suitable HOMO energy level corresponding to perovskite valence band, thus boosting the efficiency of perovskite solar cells. |
