| 학회 |
한국고분자학회 |
| 학술대회 |
2022년 봄 (04/06 ~ 04/08, 대전컨벤션센터) |
| 권호 |
47권 1호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Engineering Backbone Building Blocks and Regioregularity of Polymerized Small-Molecule Acceptors Enables Efficient All-Polymer Solar Cells with High Electron Mobility |
| 초록 |
Charge transport ability of polymer acceptors is an essential requirement for achieving high power conversion efficiencies of all-polymer solar cells (all-PSCs). Here, we design a new series of the polymerized SMA-based PA materials (Y5-A-B, A= selenophene (Se)/ biselenophene (BiSe) and B= In/Mix/Out) for enhancing the µe and, thus, PCE of all-PSCs. In detail, i) donating moieties (Se/BiSe) and ii) backbone regioregularities (In/Mix/Out) are two-dimensionally controlled to yield six different PAs. We successfully demonstrate the importance of this two-dimensional control the electrical properties of the PAs. The most interesting finding here is that the In/Mix/Out regioisomer effects on the PA¬ properties are completely different depending on the Se/BiSe donating unit in the PA. Overall, we observe a strong, direct relationship between the µe and PCE of all-PSCs. |
| 저자 |
서수덕1, Cheng Sun2, 이진우1, 이승진1, Tan Ngoc-Lan Phan1, 권순기2, 김윤희2, 김범준1
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| 소속 |
1KAIST, 2경상대 |
| 키워드 |
고분자 태양전지; 전자 이동도; 고분자 억셉터; 고효율
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| E-Mail |
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