| 학회 |
한국고분자학회 |
| 학술대회 |
2022년 봄 (04/06 ~ 04/08, 대전컨벤션센터) |
| 권호 |
47권 1호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Amphiphilicity-Driven Polymer Assembly Enables Eco-Friendly-Processed and High-Performance n-Type Organic Electrochemical Transistors |
| 초록 |
A series of naphthalene diimide-based polymers incorporated with branched oligo(ethylene glycol) (OEG) side chains are developed to enable green-processed, high-performance n-type OECTs. The OEG side chains afford processability in ethanol/water solvents. Importantly, taking advantage of the amphiphilicity of OEG-based polymers, ethanol/water solvents selectively solvate hydrophilic OEG side chains, while producing tight π−π stacks of hydrophobic backbones. This enables highly edge-on-oriented polymer packing, and thus excellent lateral charge transport. In particular, the fine-tuned OEG side chains of P(NDIMTEG-T) provide compact backbone packing, effective polaron generation, and superior electrochemical stability. The resultant OECT shows the best electrical/electrochemical performance, represented by a figure-of-merit (μC*) of 0.56 F V−1 cm−1 s−1. This study demonstrates the aqueous processing in OECTs and the design rule of n-type organic mixed ionic-electronic conductors. |
| 저자 |
정다현1, 조일영2, 이승진1, 김지환2, 김영석2, 김동욱1, John R. Reynolds3, 윤명한2, 김범준1
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| 소속 |
1KAIST, 2GIST, 3Georgia Institute of Technology |
| 키워드 |
organic electrochemical transistors; n-type electrochemical transistors; oligo(ethylene glycol) polymers; eco-friendly solution process; high electron mobility
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| E-Mail |
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