| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 가을 (10/11 ~ 10/12, 창원컨벤션센터) |
| 권호 |
37권 2호 |
| 발표분야 |
대학원생 구두발표(영어발표) |
| 제목 |
Inversion of Dominant Polarity in Ambipolar Polydiketopyrrolopyrrole with Thermally Removable Groups |
| 초록 |
Recently, 3,6-(2-thiophenyl)-substituted diketopyrrolopyrrole (thiophenyl DPP)-based polymers have emerged as extremely attractive materials for electronic devices. The thiophenyl DPP unit exhibits a planar conjugated bicyclic structure with high coplanarity of the polymer backbone, which results in efficient charge transport properties with low bandgaps. Herein we report a narrow bandgap polymeric semiconductor, thiophenyl DPP based polymer bearing thermally removable groups for the formation of a hydrogen-bonded network within conjugated polymer after thermal cleavage. This polymer shows ambipolar behaviors in OFETs, and the inversion of the dominant polarity has been observed after thermal treatment. Reported here for the first time is a viable approach to selectively tune dominant polarity of charge carriers in solution-processed ambipolar OFETs, which highlights the electronically tunable ambipolarity of thermocleavable polymer by simple thermal treatment. |
| 저자 |
한아름1, 이정훈1, 홍자연1, 서정화2, 양창덕1, 오준학1
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| 소속 |
1울산과학기술대, 2동아대 |
| 키워드 |
diketopyrrolopyrrole; ambipolarity; organic field-effect transistor; thermally removable groups; dominant polarity
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| E-Mail |
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