| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 봄 (04/08 ~ 04/10, 대전컨벤션센터) |
| 권호 |
40권 1호 |
| 발표분야 |
분자전자 부문위원회 II |
| 제목 |
High Performance All-Polymer Solar Cells via Side Chain Engineering of Polymer Acceptor: Importance of Polymer Packing Structure and Nanoscale Blend Morphology |
| 초록 |
Tuning side alkyl chains of conjugated polymers is an effective route for manipulating the blend morphology in BHJ type solar cells. However, the role of side chains in all-polymer solar cells (all-PSCs) is poorly understood. Herein, we report high-performing all-PSCs with 5.96% efficiency by developing a series of NDI-based polymer acceptors with different alkyl side chains. We demonstrated that the use of the PNDIT with hexyldecyl side chains produced highly-ordered polymer stackings with strong face-on geometry and at the same time, forming the optimal BHJ morphology with finely separated phase domains, all of which contributed together to induce well-balanced μe/μh ratio and generate efficient all-PSCs with PCEs near 6%. |
| 저자 |
이창연1, 강현범1, 이원호1, 김태수1, 김기현1, 우한영2, Cheng Wang3, 김범준1
|
| 소속 |
1KAIST, 2부산대, 3Lawrence Berkeley National Laboratory |
| 키워드 |
all-polymer solar cells; high efficiency; side-chain engineering; BHJ morphology; polymer crystallinity
|
| E-Mail |
|
