| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 가을 (10/06 ~ 10/08, 제주 ICC) |
| 권호 |
39권 2호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Effects of Five-Membered Heteroaromatic Spacer on the Electrical Performance of Isoindigo-Benzothiadiazole Polymers |
| 초록 |
Organic field-effect transistors (OFETs) have attracted tremendous interest because of solution processability and low-cost device fabrication. Significantly improved mobilities have been achieved by introducing the isoindigo (IIG), one of the most promising acceptor units. Motivated by our previous study concerning the outstanding electron-transport characteristics of poly(isoindigo-alt-benzothiadiazole) (PIIG-BT), we devote our attention to tuning the IIG-BT backbone to relieve the steric hindrance between the IIG and BT units, thereby to enhance co-planarity of the backbone. Herein, we present two new polymers with heteroaromatic spacers inserted into the polymeric backbone and investigate their optical, electrochemical properties, and the electrical performance of the OFETs. The presence of the spacers results in relatively well-balanced ambipolar transport, which has scarcely been observed from OFETs based on IIG-based semiconducting polymers. |
| 저자 |
이해랑1, 한아름1, 김경식2, 양창덕2, 오준학2
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| 소속 |
1포항공과대, 2울산과학기술대 |
| 키워드 |
organic field-effect transistor; semiconducting polymer
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| E-Mail |
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