| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 가을 (10/10 ~ 10/12, 경주컨벤션센터) |
| 권호 |
43권 2호 |
| 발표분야 |
분자전자 부문위원회 II |
| 제목 |
A stretchable conductive polymer with enhanced stretchability using π−π stacking and amorphous chains |
| 초록 |
Although intermolecular charge transport is known to occur via π−π stacking, the interests of their mechanical properties were not considered much in comparison with other dynamic non-covalent interactions. Herein, we demonstrate a method to improve stretchability by reducing the crystallinity and increasing the π−π stacking of the thiophene-based random copolymer chain. The polymer network includes a coil-shaped amorphous chain that helps dissipate energy when the polymer film is subjected to strain; Besides, π-π stacking prevents the chain from irreversibly slipping through the applied strain and improves interchain charge transport. As a result, we improved conducting polymer’s properties such as elongation at break and tensile strength, and toughness along with charge mobility. In addition, our polymers are highly resistant to a 40% strain without reducing charge mobility while maintaining stable electrical performance even after 5,000 extensional cycles at 30% strain. |
| 저자 |
이대환1, 손성윤2, 강경호2, 박철웅2, 김해운2, 박태호2
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| 소속 |
1포항공과대, 2POSTECH |
| 키워드 |
Stretchable semiconducting polymer; Poly(3-hexylthiophene); Random copolymer; Amorphous polymer; Organic transistor
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| E-Mail |
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