| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO)) |
| 권호 |
44권 1호 |
| 발표분야 |
분자전자 부문위원회 I |
| 제목 |
Chlorinated Isoindigo-based Conjugated Polymers: Effect of Rotational Freedom of Conjugated Segment on Crystallinity and Charge-Transport Characteristics |
| 초록 |
The chlorinated isoindigo (CI) is promising building block for organic semiconducting materials because the favourable properties, such as ready availability, lower price, and higher capability to hold the electron density than fluorine atoms, make them advantageous for use in semiconducting materials. In this study, we systematically investigate the effect of the structural property – flexibility vs rigidity – of the donor unit on the crystallinity and charge transport characteristics of chlorinated isoindigo acceptor-based D-A type conjugated polymers. Interestingly, in GIXRD analysis, although TV unit is more planar structure than BT unit, PCIBT had more improved molecular ordering than PCITV. This may be associated with the BT unit having higher rotational freedom compared to that of the TV unit. This property of the BT unit can facilitate thermal-assisted polymer chain packing in film state that results in an enhanced molecular ordering of PCIBT after thermal annealing process. |
| 저자 |
박종진1, 김영아2, 이승훈3, 김주환2, 김윤슬1, 임대희1, 김동유1
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| 소속 |
1광주과학기술원, 2LG화학, 3한국화학(연) |
| 키워드 |
chlorinated conjugated polymer; charge-transport characteristics; organic field-effect transistor; rotational freedom
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| E-Mail |
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