| 학회 |
한국고분자학회 |
| 학술대회 |
2016년 봄 (04/06 ~ 04/08, 대전컨벤션센터) |
| 권호 |
41권 1호 |
| 발표분야 |
분자전자 부문위원회 I |
| 제목 |
Synchronized π-Conjugated Ordering of Semiconducting Polymer for High-Performance Organic Field-Effect Transistor |
| 초록 |
A novel conjugated copolymer, pDPP-(TV)2B, including 1,4-bis[(E')-2-(thiophene-2-yl)vinyl)benzene (TV)2B and diketopyrrolopyrrole (DPP) derivatives was synthesized. The copolymer showed good solubility in solvents and strong molecular interaction during film procedures. Thin films were annealed at a temperature ranging from 150 to 300 oC for 1 h. Featureless aggregates of the face-on copolymer were dominant in as-spun film and transferred to ordered rods or fibrils containing highly edge-on polymers after annealing. In terms of π-conjugated ordering, the as-spun and 250 °C-annealed films contained highly-synchronized chains with face-on and edge-on structures, respectively. However, the resulting OFETs yielded similar mobilities of 0.07 and 0.08 cm2 V-1 s-1, respectively. It suggest that the π-overlap of edge-on semiconducting polymers on gate dielectrics is not necessary to enhance the electrical performance of OFETs, in comparison to the synchronization rate of the chain ordering. |
| 저자 |
배명원1, 장미1, 안준규1, 김윤희2, 양회창1
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| 소속 |
1인하대, 2경상대 |
| 키워드 |
Organic field-effect transistor; D-A copolymer; ordering
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| E-Mail |
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