| 학회 |
한국고분자학회 |
| 학술대회 |
2020년 가을 (10/05 ~ 10/08, 부산컨벤션센터(BEXCO)) |
| 권호 |
45권 1호 |
| 발표분야 |
분자전자 부문위원회 I |
| 제목 |
Water/Ethanol-Soluble NDI-Based Polymer Acceptors for Eco-Friendly and Air-Stable All-Polymer Solar Cells |
| 초록 |
Aqueous-processed all-polymer solar cells (aq-APSCs) are reported for the first time by developing a series of water/ethanol-soluble naphthalene diimide (NDI)-based polymers P(NDIDEG-T), P(NDITEG-T), and P(NDITEG-T2). The polymers were designed by attaching hydrophilic oligoethylene glycol (OEG) side chains to facilitate processability. The P(NDIDEG-T) polymer with shortest OEG side chains exhibited the highest performance with a power conversion efficiency (PCE) of 2.15%. Furthermore, these aq-APSCs showed an outstanding air-stability as evident by maintaining more than 90% of the initial PCE in air after 4 days. Double cantilever beam tests revealed that the high interfacial adhesion properties between the OEG-based active layer and hydrophilic electron/hole transporting layers may be the origin of the enhanced durability under ambient conditions. Both the good device stability and eco-friendliness make the aq-APSCs worthy candidates for continued development of scalable PSCs. |
| 저자 |
이승진1, 김영웅1, Ziang Wu2, 이창연1, 오승진1, Nguyen Thanh Luan2, 이준복1, 정다현1, Kai Zhang3, Fei Huang3, Taek-Soo Kim1, 우한영2, 김범준1
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| 소속 |
1KAIST, 2고려대, 3South China Univ. of Technology |
| 키워드 |
aqueous process; eco-friendly solution process; all-polymer solar cells; air-stability; oligoethylene glycol (OEG) side chain
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| E-Mail |
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