| 학회 |
한국고분자학회 |
| 학술대회 |
2020년 가을 (10/05 ~ 10/08, 부산컨벤션센터(BEXCO)) |
| 권호 |
45권 1호 |
| 발표분야 |
분자전자 부문위원회 I |
| 제목 |
Breath-Figure Molding of Polymer Transistors to Implement Low Power, Flexible, and Highly Selective NOx Sensors |
| 초록 |
Strategically designed polymer semiconductor thin film morphology with both high reactivity to the specific gas analyte and high signal transport efficiency is reported to realize highly selective/sensitive flexible NOx transistor sensors. Breath-Figure (BF) molding of polymer semiconductors enables a finely defined degree of nano-porosity in polymer films with high reproducibility while maintaining a high charge carrier mobility characteristics of organic field effect transistors (OFETs). The optimized BF-OFET with a donor-acceptor copolymer exhibits a maximum responsivity of over 104%, sensitivity of 774%/ppm, and limit of detection of 110 ppb against NO. Selectivity to NOx analytes is tested by comparing the sensing ability of BF-OFET to other reducing gases and volatile organic compounds; the BF-OFET gas sensor platform monitors specific gas analytes based on their polarity and magnitude of sensitivity. |
| 저자 |
유성훈1, Henok Hetachew Girma2, 심규민3, 윤성원1, 안상혁4, 박종목1, 공호열2, 정대성3
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| 소속 |
1포항공과대, 2Research Center for Green Fine Chemicals, 3Korea Research Institute of Chemical Technology, 4KIST |
| 키워드 |
organic gas sensors; polymer transistors; breath figures; flexible sensors; high sensitivity; high selectivity
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| E-Mail |
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