| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 봄 (04/10 ~ 04/11, 대전 컨벤션센터) |
| 권호 |
39권 1호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Benzotriazole-Containing Planar Conjugated Polymers with Non-Covalent Conformational Locks for Thermally Stable and Efficient Polymer Field-Effect Transistors |
| 초록 |
We report a series of benzotriazole-based crystalline π-conjugated polymers via non-covalent conformational locks for applications in polymer field-effect transistors. Electronegative substituents (fluorine and oxygen) were introduced to the benzotriazole unit to enhance the molecular ordering through intra- and intermolecular F···S, F···H-C, C-F···πF or S···O attractive interactions. The fluorinated polymer (PTBTz-F) showed remarkably enhanced hole mobility (μh = 1.91 cm2/(V·s)), compared to the unsubstituted one (PTBTz) (μh = 7.01×10-3 cm2/(V·s)). Alkoxy unit substitution (PTBTz-OR) also improved the carrier mobility up to 0.018 cm2/(V·s). Fluorine or alkoxy substitution induced tight inter-chain ordering with edge-on orientation through non-covalent intra- and intermolecular coulomb interactions, as confirmed by X-ray diffraction measurements. |
| 저자 |
안태규1, 염승집2, 차효정1, 김래호1, 김유진1, 우한영2, 박찬언1
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| 소속 |
1포항공과대, 2부산대 |
| 키워드 |
organic transistor; benzotriazole; donor-acceptor copolymer
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| E-Mail |
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