| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 가을 (10/10 ~ 10/12, 경주컨벤션센터) |
| 권호 |
43권 2호 |
| 발표분야 |
PSK-FAPS 2018 Congress on Functional Polymers and Their Applications (English) |
| 제목 |
Molecular Architecture Effect of Oligosaccharide-based Block Copolymers for Stretchable Electrical Device Applications |
| 초록 |
We present a design concept of carbohydrate-based block copolymers (BCP) of hydrophilic maltoheptaose (MH) and hydrophobic poly(butyl acrylate) (PBA) with linear (AB, ABA) and star-shaped architectures for the application of transistor-type memory devices. The BCP thin films showed either parallel cylindrical MH domains or highly-ordered spherical MH domains, dependent on the PBA volume fraction. The phase-separated structures and the domain sizes of the BCPs also varied with the molecular architectures. The stretchability of the thin films could be significantly improved by introducing the flexible PBA segment into BCPs. In particular, the ABA-type and star-shaped BCPs with end MH segments endured a high strain and no crack was observed even at 100 % strain. Thus, the FET memory devices with ABA-type and star-shaped BCP thin films as the charge trapping layers exhibited remarkably stable charge carrier mobilities and memory windows when the films were under cyclic 50 % strain up to 1000 cycles. This work demonstrates the significance of the molecular architectures effect of BCPs for high-performance stretchable and wearable electronic devices. |
| 저자 |
Chih-Chien Hung1, Saki Nakahira2, Takuya Isono2, Shih-Huang Tung1, Toshifumi Satoh2, Wen-Chang Chen1
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| 소속 |
1National Taiwan Univ., 2Hokkaido Univ. |
| 키워드 |
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| E-Mail |
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