화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2019년 가을 (10/09 ~ 10/11, 제주컨벤션센터)
권호 44권 2호
발표분야 기능성 고분자
제목 Toward the Rapid and Sustainable Humidity Sensors; Label-free and Self-displaying Colorimetric 1D Photonic Films
초록 We studied a facile and practical 1D PC for real-time monitoring humidity sensor with remarkable color change, sensitivity and reversibility. High refractive index polymer and four different quaternization degree of low refractive index polymers were synthesized. Multilayers polymeric 1D photonic crystal(PC) films were fabricated by alternating Low/High refractive index polymer by a simple spin-coating. 1D humidity films were prepared 5 films of similar thickness and four samples of varying thickness, and the color change and photonic stop band are observed relative humidity from 10% to 90%. Depending on the degree of quaternization and thickness modulation of the low refractive polymer, the color change and response time which are sensitive to the relative humidity are changed. A film having a relatively low hydrophilicity can be applied as an anti-counterfeiting film, and a film having a high hydrophilicity and sensitivity, various color change can be applied as a humidity sensor.
저자 배자영1, 이현태1, 박민지1, 정서현1, 임보규1, 정유진1, 공호열1, 이형일2, 박종목1
소속 1한국화학(연), 2울산대
키워드 photonic crystal; 1D; sensor
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