| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 가을 (10/06 ~ 10/08, 제주 ICC) |
| 권호 |
39권 2호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Highly Sensitive and Selective Liquid-Phase Sensors Based on a Solvent-Resistant Organic Transistor Platform |
| 초록 |
The applications of organic field-effect transistor (OFETs) in various types of sensors (e.g., chemical, biological sensors) have attracted great interest owing to their high potential in light-weight, flexibility, and large area electronics. Nonetheless, organic semiconductors have an intrinsic drawback for use as an active layer in ‘practical’ sensors: poor resistance of organic semiconductors in common organic solvents. For this reason, OFET-based sensors have been only demonstrated with sensors for vapor- and aqueous-phase analytes. Herein, we demonstrate highly sensitive and selective OFET-based sensors based on solvent-resistant organic semiconductors. The chemically cross-linked P3HT-azide copolymers have been introduced to increase the resistance of active layers to organic solvents. Various liquid-phase organic solvents and pH solutions have been adopted successfully as the analytes and reliable sensing behaviors have been obtained from the solvent-resistant OFET sensors. |
| 저자 |
이무열1, 김형준2, 한아름3, 김범준1, 오준학2
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| 소속 |
1POSTECH, 2UNIST, 3KAIST |
| 키워드 |
solvent-resistant OFETs; cross-linkable conjugated polymers; calixarenes; liquid-phase sensing
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| E-Mail |
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