| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 가을 (10/10 ~ 10/12, 경주컨벤션센터) |
| 권호 |
43권 2호 |
| 발표분야 |
분자전자 부문위원회 II |
| 제목 |
Molecular Design and Packing Structure Effects in A-D-A Type Small-Molecules with Different Terminal Groups for Transistor and Solar Cell Applications |
| 초록 |
We designed and synthesized a new acceptor-donor-acceptor (A-D-A) type small molecules with thiophene-phenylene based central donor unit (P3T4) and different acceptor terminal groups of dicyanovinylene (VCN) and dicyanoindenedione (INCN). We conducted a systematic investigation on the relationship between the packing structures and charge transport properties in organic field-effect transistor (OFET) devices. It was observed that the P3T4-INCN exhibits strongly edge-on π-π stacking after thermal annealing, leading to an increased hole and electron mobility of 0.08 cm2V-1s-1 and 0.046 cm2V-1s-1, respectively, compared with P3T4-VCN. In particular, P3T4-INCN:PCBM device produced the best PCE of 5.6% with optimal BHJ morphology via solvent vapor annealing. |
| 저자 |
김상우1, 이유정2, 이예란2, 김민제3, 조정호3, 우한영2, 김범준1
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| 소속 |
1KAIST, 2고려대, 3성균관대 |
| 키워드 |
A-D-A type small molecule; organic solar cell; organic field-effect transistor
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| E-Mail |
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