| 학회 |
한국고분자학회 |
| 학술대회 |
2022년 봄 (04/06 ~ 04/08, 대전컨벤션센터) |
| 권호 |
47권 1호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Effect of protic ionic liquids on electrical conductivity and elasticity of PEDOT:PSS-based stretchable and transparent electrodes |
| 초록 |
We investigate the effect of hydrogen bonding in ionic liquids (ILs) on the electrical conductivity and elasticity of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS)/IL thin films. By comparing the electrical conductivity (σ) and elasticity of the PEDOT:PSS thin films processed with a series of protic ILs (p-ILs) and aprotic ILs (ap-ILs) based on the imidazolium cations with varying lengths of alkyl side chains, we demonstrate that the p-ILs can decrease the binding distance among ion pairs via strong hydrogen bonds, thereby leading to densely packed nanofibrils and associated enhancement of σ and elasticity compared with those of ap-ILs. As a result, the PEDOT:PSS/p-ILs thin films show enhanced σ approaching 2,500 S cm−1 and elasticity with increased crack onset strain value exceeding 50%. Our results provide insight into how ILs confer elasticity to PEDOT:PSS and will facilitate the design of ILs for high-performance stretchable and transparent electrodes. |
| 저자 |
김민지1, 이승엽2, 최창원3, 안형주4, 장윤희3, 이성호2, 이병훈1
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| 소속 |
1이화여자대, 2대구대, 3대구경북과학기술원, 4포항공과대 |
| 키워드 |
elasticity; hydrogen bonds; ionic liquids; PEDOT:PSS; stretchable and transparent electrodes
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| E-Mail |
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