| 초록 |
Polymer solar cells (PSCs) have received increasing interest owing to their unique advantages such as low cost of fabrication, mechanical flexibility, and the potential of high-throughput by roll-to-roll manufacturing processing. We designed electron-rich unit, carbazole derivative, and conjugated polymers were synthesized by Suzuki polymerization. Synthesized donor-acceptor polymers, HS-5610, HS-5613 and HS-5614 are composed of carbazole derivative as donor and N-alkyl-2,20-bithiophene-3,30-dicarboximide (BTI), isoindigo (ID), thieno[3,4-c]pyrrole-4,6-dione (TPD) units as acceptor. The device comprising HS-5610 showed a VOC of 0.81 V, a JSC of 3.16 mA/cm2, and a FF of 56.4%, giving a PCE (Power Conversion Efficiency) of 1.44%. The device including HS-5613 indicated a VOC of 0.32 V, a JSC of 3.67 mA/cm2, and a FF of 32.6%, giving a PCE of 0.38%. The device including HS-5614 indicated a VOC of 0.65 V, a JSC of 2.04 mA/cm2, and a FF of 31.2%, giving a PCE of 0.41%. |
