| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO)) |
| 권호 |
44권 1호 |
| 발표분야 |
분자전자 부문위원회 I |
| 제목 |
A Highly Sensitive and Selective Chemotransistor Using Semiconducting Polymer Gel Films |
| 초록 |
Unlike oxide semiconductors, semiconducting polymer-based chemosensors have a significant attention because of their low operating temperature. However, they suffer from low sensitivity with gas molecules compared to oxide semiconductors. Herein, we describe semiconducting polymer gel showing interpenetrating polymer networks (IPNs). The various functional groups could be introduced by manipulating the silanol groups of IPNs. Therefore, we utilized amine groups (-NH2) (electron donating) as a functional group due to their strong interaction (hydrogen-bonding) with NO2 molecules. The response of amine-functionalized semiconducting polymer gel (NH2-SPG)-based chemotransistor is larger than pristine semiconducting polymer, which is due to enhanced interactions with NO2 (electron withdrawing). Further, the recovery time was significantly improved because penetration of gas into NH2-SPG was restricted by the NH2 groups introduced onto the surface. |
| 저자 |
김재희1, 박한울1, 권혁민1, 황해중1, 김승한2, 송애란3, 정권범3, 강문성2, 김도환1
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| 소속 |
1한양대, 2숭실대, 3동국대 |
| 키워드 |
Organic Field Effect Transistors (OFETs); Gas sensors; NO2 sensors; Polymer semiconductors
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| E-Mail |
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