| 학회 | 한국화학공학회 |
| 학술대회 | 2022년 봄 (04/20 ~ 04/23, 제주국제컨벤션센터) |
| 권호 | 28권 1호 |
| 발표분야 | [주제 12] 화학공학일반(부문위원회 발표) |
| 제목 | Intrinsically stretchable and transparent electrodes based on conductive polymers and protic ionic liquids |
| 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. Keywords: elasticity, hydrogen bonds, ionic liquids, PEDOT:PSS, stretchable and transparent electrodes |
| 저자 | 김민지1, 이승엽2, 최창원3, 안형주4, 김경진1 |
| 소속 | 1이화여자대, 2대구대, 3대구경북과학기술원, 4포항공과대 |
| 키워드 | 고분자(Polymer) |
| 원문파일 | 초록 보기 |
