| 학회 |
한국고분자학회 |
| 학술대회 |
2017년 가을 (10/11 ~ 10/13, 제주컨벤션센터) |
| 권호 |
42권 2호 |
| 발표분야 |
분자전자 부문위원회 I |
| 제목 |
High Interfacial Fracture Resistance of All-Polymer Solar Cells:Comparative Studies of Decohesion Kinetics between All-PSCs and Small Molecules-PSCs |
| 초록 |
Organic Solar Cells (OSCs) have attracted much attention due to their some advantages such as light weight, simple and low-cost fabricating process. Although power conversion efficiency (PCE) have exceeded 10%, the vulnerable device stability still remains a great challenge. Especially, the mechanical properties of OSCs play a important key role in making process and operation at real condition, but there has been lack of interest. In this work, we used double-cantilever beam (DCB) testing method to investigate differences of mechanical properties of all-polymer solar cells (all-PSCs) between PCBM based solar cells (PCBM-PSCs). The cohesive failure in active layer was observed in both case. More importantly, significantly enhanced mechanical robustness was obtained from all-PSCs active layer compared than that of PCBM-PSCs, because polymer acceptor are not only intrinsically more ductile than PCBM molecules but also are entangled with other polymers in active layer. |
| 저자 |
최준형1, 김완선1, 김재한2, 김태수1, 김민구1, 김범준1, 김택수1
|
| 소속 |
1KAIST, 2KAERI |
| 키워드 |
fracture energy; decohesion kinetic; all-polymer solar cell; mechanical stability
|
| E-Mail |
|
