화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2013년 봄 (04/11 ~ 04/12, 대전컨벤션센터)
권호 38권 1호
발표분야 고분자가공/복합재료
제목 Highly ordered Lyotropic Chromonic Liquid Crystals between nano-spaced lines fabricated by Secondary Sputtering Lithography
초록 Lyotropic chromonic liquid crystal (LCLCs) phases are formed by a range of compounds, including drugs, dyes and nucleic acids, which we can observe easily in nature. LCLCs have attracted a lot of attention for practical applications as dichroic light-polarizing sheet materials, bio-sensing active chemicals, and etc. Despite of these advantages, controlling over the alignment of domains in LCLCs has many limitations compared to thermotropic LCs which have been researched by many scientists. We used a novel method to make line patterns and fabricate the LC cell. To achieve uniform alignment, we used nano-patterned gold substrates which have high aspect ratio (ca. 10) and high resolution (ca. 20 nm) made by secondary sputtering phenomenon. We confirmed the uniform planar alignment of LCLCs over large area observed by polarized optical microscope.
저자 김정연1, 전환진2, 정희태2
소속 1KAIST, 2한국과학기술원
키워드 nanopattern; liquid crystals; lyotropic
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