화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2020년 가을 (10/28 ~ 10/30, 광주 김대중컨벤션센터(Kimdaejung Convention Center))
권호 24권 1호
발표분야 포스터-무기재료
제목 Controlled assembly of colloidal clusters and its photonic properties
초록 Icosahedral clusters are a new class of spherical colloidal crystals. However, the characterization of the icosahedral cluster has not been achieved. Here, we produce icosahedral clusters by slowly shrinking particle-laden water droplets in water-saturated oil. We controlled the drying time of aqueous droplets using a water-saturated hexadecane medium. In particular, we present real-time confocal measurement using dual dye labeling. The icosahedral clusters exhibit relatively strong structural colors compared to conventional onion-like supraballs. Moreover, the carbon-coated clusters further improve the saturation of structural colors.
저자 김철호1, 정기남2, 유지웅3, 박상혁4, 김신현4, 이원보3, 황혜림5, Vinothan N. Manoharan5, 문준혁1
소속 1서강대, 2한남대, 3서울대, 4KAIST, 5Harvard Univ.
키워드 colloidal assembly; supraballs; icosahedral clusters; real-time observation; structural colors
E-Mail