| 세션명 | 미래소재: 태양광 에너지 활용 소재 기술 |
|---|---|
| 발표장 | 제5회장 |
| 논문코드 | 1L5-1 |
| 발표일 | 2021-10-21 |
| 발표시간 | 14:00-14:25 |
| 논문제목 | Ternary Organic Solar Cells Based on a Wide-Bandgap Polymer with Enhanced Power Conversion Efficiency Over 17% |
| 발표자 | 진성호 |
| 발표자 소속 | 부산대학교 |
| 저자 | 진성호†, 타바마니 구굴라한트 |
| 소속 | 부산대학교 |
| 논문초록 | A ternary strategy has been demonstrated as a promising method to further improve the performance of organic solar cells (OSCs). Herein, an efficient polymer SiCl-BDT was incorporated into a host binary PM7:Y7 system to fabricate ternary OSCs. SiCl-BDT possesses good complementary absorption and good compatibility with PM7. Also, the lowest unoccupied molecular orbital (LUMO) cascade energy level of SiCl-BDT is slightly lower than that of PM7, which enables efficient exciton generation and charge transfer in ternary OSCs compared with that of PM7:Y7, leading to higher efficiency. The optimized ternary devices with 15 wt% SiCl-BDT in the donors achieve a PCE of 17.09%. Besides, we found that the photovoltaic device performance of ternary OSCs can be further established to an impressive efficiency of 17.40% by employing a highly effective interface strategy. Thus, our newly advanced method guarantees highly efficient and stable ternary OSCs. |
THE POLYMER SOCIETY OF KOREA