| 학회 |
한국공업화학회 |
| 학술대회 |
2015년 가을 (11/04 ~ 11/06, 제주국제컨벤션센터(ICCJEJU)) |
| 권호 |
19권 2호 |
| 발표분야 |
고분자_포스터 |
| 제목 |
Donor-Acceptor Frameworks in Thienoisoindigo-Based Copolymers for Field-Effect Transistors |
| 초록 |
Recently, copolymers based on conjugated donor-acceptor (D-A) strategies have been widely developed as organic semiconductors owing to its low-bandgap for high-performance field-effect transistors (FETs). Among these D-A systems, a thienoisoindigo (TIIG) unit has been intensively reported as the acceptor unit. By implanting thiophene into indigo unit, the molecular planarity improved through S⋯O interactions and charge delocalization enhanced according to increment of π-conjugated units. In this work, we introduced two different centrosymmetric donor units into the TIIG polymer backbone to improve the interchain π-π stacking interaction. The resulting ultra-low bandgap copolymers exhibited better molecular ordering and π-conjugation, consequentially enhanced the coplanarity of the polymer and improved mobilities of the FETs. |
| 저자 |
오준학1, 양창덕2, 김경식2, 장문정1, 김효은1
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| 소속 |
1포항공과대, 2울산과학기술대 |
| 키워드 |
copolymer; OFET; thienoisoindigo
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| E-Mail |
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