| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 봄 (04/07 ~ 04/09, 대전컨벤션센터) |
| 권호 |
46권 1호 |
| 발표분야 |
분자전자 부문위원회 Ⅰ |
| 제목 |
Thermally stable and high-mobilty dithienopyran-based copolymers with electron-deficient acceptor units |
| 초록 |
We investigate electrical and thermal properties of dithienopyran (DTP) based copolymers prepared with various electron-rich and electron-deficient moieties. With electron-rich moieties such as 2,1,3-benzothiadiazole (BT) and 5-fluoro-2,1,3-benzothiadiazole (FBT), DTP-based donor-acceptor (D-A) copolymers showed remarkably improved carrier mobility and thermal stability in the wider range of processing temperatures compared to those of donor-donor (D-D) copolymers prepared with electron-deficient 2,2'-bithiophene (T2) and 1,2-di(thiophen-2-yl)ethane (TVT) moieties. The enhanced carrier mobility and thermal stability are attributed to high crystallinity of D-A copolymers sustainable in a wide range of processing temperatures confirmed by ultraviolet-visible absorption spectroscopy and grazing-incidence wide angle X-ray diffraction. These results demonstrate that D-A configuration is a promising molecular framework for the development of thermally stable OFET-based electronics. |
| 저자 |
유현진1, 정성훈2, 조용준2, 양창덕2, 이병훈1
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| 소속 |
1이화여자대, 2UNIST |
| 키워드 |
Donor-acceptor conjugated polymers; organic field-effect transistors; themal stability; polymer semiconductors
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| E-Mail |
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