| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 봄 (04/10 ~ 04/11, 대전 컨벤션센터) |
| 권호 |
39권 1호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Thiophene Flanked Diketopyrrolopyrrole-based Conjugated Small Molecules for Thin Film Transistors and Solution-processed Solar Cells |
| 초록 |
The donor-acceptor (D-A) type conjugated molecules displayed very promising performance in organic field effect transistors (OFETs) and organic photovoltaics (OPVs). Owing to their strong molecular specific interaction between D-A molecules, ease of crystallization and self-association behavior between the molecules could provide the formation of solid films displaying great charge transport property. In this work, we designed new D-A-D-A-D type molecular structures containing diketopyrrolopyrrole and thiophene units. They showed moderately high charge carrier mobility, and among two molecules synthesized in this study, TT(BTDPP)2 with two DPPs and six thiophene units showing higher carrier mobility was employed to elaborate OPV with PC61BM (TT(BTDPP)2 : PC61BM=1:0.8 wt ratio), which displayed the best power conversion efficiency of 3.76 % (VOC of 0.66 V, JSC of 14.21 mA/cm2 and a FF of 0.40). |
| 저자 |
홍태량, 최동훈, 신지철, 엄현아, 이태완, 조민주
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| 소속 |
고려대 |
| 키워드 |
Diketopyrrolopyrrole; Small Molecules; Thin Film Transistors; Solar Cells
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| E-Mail |
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