| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 봄 (04/08 ~ 04/10, 대전컨벤션센터) |
| 권호 |
40권 1호 |
| 발표분야 |
분자전자 부문위원회 II |
| 제목 |
High Aspect Ratio Polymer Nanowire for High Performing Field-Effect Transistor and Phototransistor |
| 초록 |
In the case of donor-acceptor (D-A) conjugated polymers, it is difficult to fabricate single-crystalline objects and study their intrinsic properties on the nanoscopic scales owing to their chain disorders and undesirable impurities. Here, we synthesized D-A conjugated polymers of different molecular weights (MWs) by Soxhlet extraction using various solvents. Then, the low- and high-MW polymers were investigated in their intrinsic material properties. Precisely self-assembled high aspect ratio polymer nanowires made from the low-MW polymer were employed in field-effect transistors to observe the unique charge transport property. An unprecedentedly high carrier mobility of around 24.0 cm2 V-1 s-1 was obtained in FET devices. PNW-based phototransistor also showed very high photoresponsivity (Rmax ~1920 A W−1). The highly ordered single-crystalline polymer nanowires displayed much better electronic and optoelectronic device performance compared with thin-film-based devices. |
| 저자 |
엄현아1, 이대희1, 허동욱1, 양다슬1, 신지철1, 백현석2, 조민주1, 최동훈1
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| 소속 |
1고려대, 2기초과학(연) |
| 키워드 |
D-A conjugated polymer; Nanowire; Field-effect transistor
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| E-Mail |
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