| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 가을 (10/10 ~ 10/12, 경주컨벤션센터) |
| 권호 |
43권 2호 |
| 발표분야 |
고분자가공/복합재료 |
| 제목 |
Directed self-assembly of helical nanostructure with photoresponsive supramolecular liquid crystal and its photonic application. |
| 초록 |
Structural colorations have enormous advantages than chemical colorations as they can control the wavelength and polarization of reflecting light via physical structures. For these, several hundreds of nanometer scaled helical structures are needed. In this scale, conventional top-down approaches are not suitable for the mass production because of their high cost and time-consuming process. For these reasons, directed self-assembly based nano-patternings, especially with cholesteric and blue phases of liquid crystal, have attracted great attentions as they can form the desired structures very easily. However, their fluidic property causes the strong obstacles in mechanical stabilities. In this paper, we report new type of chiral nanofabrication process based on the helical nanofilament (HNF) of bent-core liquid crystals. Especially, by introducing the photoresponsive moieties, we successfully control the orientation of HNFs in large area for the first time and obtain vivid colorations. |
| 저자 |
박원기1, 하태우2, 김튼튼2, Anna Zep3, 안형주4, 신태주5, 심경익6, 정택선6, 김재훈6, Damian Pociecha3, Ewa Gorecka3, 윤동기1
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| 소속 |
1한국과학기술원, 2기초과학(연), 3Univ. of Warsaw, 4포항가속기(연), 5울산과학기술원, 6연세대 |
| 키워드 |
Helical nanofilament; Liquid crystals; Azobenzene; Weigert effect; Color reflector
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| E-Mail |
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