| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO)) |
| 권호 |
44권 1호 |
| 발표분야 |
분자전자 부문위원회 I |
| 제목 |
Water/Ethanol-Soluble Naphthalene Diimide-Based Polymer Acceptors for Efficient and Air-Stable All-Polymer Solar Cells |
| 초록 |
A new series of naphthalene diimide (NDI)-based and water/ethanol-soluble n-type polymers was synthesized and applied as electron acceptors in eco-friendly polymer solar cells (eco-PSCs). The length of hydrophilic oligoethylene gylcol (OEG) side chain and the backbone structure were modified to the extent that the solubility in the aqueous solvent is ensured. Consequently, three polymer acceptors named P(NDIDEG-T), P(NDITEG-T), and P(NDITEG-T2) were developed and a record high power conversion efficiency (PCE) of 2.15% was achieved. Notably, the solar cell devices also exhibited an outstanding air stability maintaining more than 90% of the initial PCE in ambient conditions after 4 days. As we pioneered the first and high-performance eco-PSCs based on non-fullerene acceptors, this work provides an important direction for further material design in eco-PSCs. |
| 저자 |
이승진1, 김영웅1, Ziang Wu2, 이창연1, Nguyen Thanh Luan2, 이준복1, 정다현1, 우한영2, 김범준1
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| 소속 |
1KAIST, 2고려대 |
| 키워드 |
aqueous process; eco-friendly solution process; oligoethylene glycol-based conjugated polymers; all-polymer solar cells
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| E-Mail |
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