| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 가을 (10/10 ~ 10/12, 경주컨벤션센터) |
| 권호 |
43권 2호 |
| 발표분야 |
분자전자 부문위원회 II |
| 제목 |
Thiazole-based conjugated polymers for field-effect transistors and solar cells |
| 초록 |
Thiazole-based conjugated polymers with a novel thiazole-vinylene-thiazole (TzVTz) structure are synthesized for optoelectronic applications. By combining thiophene-substituted BDT or DTBDT electron-donating units and a TzVTz electron-accepting unit, enhanced intermolecular interaction and charge transport ability are obtained from BDT-TzVTz and DTBDT-TzVTz. For transistor and photovoltaic application, molecular self-assembly and nanoscale morphology are controlled via thermal annealing and introducing diphenyl ether (DPE) solvent additive, respectively. Due to the higher degree of π-electron delocalization and more favorable molecular packing of DTBDT-TzVTz compared to BDT-TzVTz, higher performances are obtained from the transistor and photovoltaic devices. Morphology characterization on the photoactive layers reflects that the superior miscibility of DTBDT-TzVTz with PC71BM and stronger crystallinity of DTBDT-TzVTz in nano-fibrillar structure lead to distinctly higher performances. |
| 저자 |
홍지수1, Canjie Wang2, 김예별1, 김형남2, 안태규3, 권순기2, 김윤희2, 박찬언1
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| 소속 |
1포항공과대, 2경상대, 3한국교통대 |
| 키워드 |
Thiazole-based polymer; coplanarity; organic field-effect transistor; organic solar cell; morphology
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| E-Mail |
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