| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 봄 (04/07 ~ 04/09, 대전컨벤션센터) |
| 권호 |
46권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Active Film Thickness Control to Improve NO2 Sensing Performance Using Polymers Based on Indolocarbazoles (ICZs) |
| 초록 |
Gas sensor based on organic field-effect transistors (OFETs) was performed analyte detect by inducing current change which be caused by charge transfer between electron donating polymer and electron accepting NO2 gas analyte. In this study, three designed conjugated polymers (CPs) containing ICZs derivative with different functional groups were utilized as active layer materials. Each CPs was exhibited different film crytallinity and reaction sites with analyte, influenching the diffusion pathway and polymer-analyte interaction, which in affect gas responsivity. Introduction of polar side chain was achived high responsivity by enhanced anayte diffusion into conducting channel and charge transfer. OFET devices were fabricated by adjusting thickness of the active layer of CPs, respectively. Several studies have reported that reducing the active layer thickness have been made to improve the sensitivity, but our work showed the highest responsivity at optimized thickness for all three CPs. |
| 저자 |
한지민1, 권지언2, 이위형1, 김봉기3
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| 소속 |
1건국대, 2한국과학기술(연), 3서울 건국대 |
| 키워드 |
organic field-effect transistors; VOCs; conjugating polymers; gas sensors
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| E-Mail |
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