| 학회 |
한국공업화학회 |
| 학술대회 |
2020년 가을 (10/28 ~ 10/30, 광주 김대중컨벤션센터(Kimdaejung Convention Center)) |
| 권호 |
24권 1호 |
| 발표분야 |
포스터-디스플레이 |
| 제목 |
Flexible Broadband Mirrors with Stacked Multilayer Cholesteric Liquid Crystal Paints |
| 초록 |
Using layer-by-layer (LBL) coating and photopolymerization, we developed circular-polarized and free-standing mirrors with broad reflection bandwidth. Because of viscoelasticity and intrinsic chirality, cholesteric liquid crystal (CLC) paints can be prepared by simple brush coating. The helical pitch of the CLC paints were controlled by concentration of the chiral reactive mesogen with acrylate-based reactive mesogen. The CLC film showed excellent mechanical, thermal and chemical stabilities by stabilizing with photopolymerization. The sequentially stacked CLC films had finely tuned helical pitch and it is confirmed by SEM combined with optical calculations. The CLC film reflected visible light over the whole visible wavelength region. The continuous LBL coating provides a simple solution for fabricating full-color reflector. This work was supported by Basic Research Laboratory Program (2020R1A4A1018259) and Korea Agency for Infrastructure Technology Advancement (20POQW-B152753-02) |
| 저자 |
임석인, 정광운
|
| 소속 |
전북대 |
| 키워드 |
Cholesteric LC; Bandwidth brodening; Reactive Mesogen
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| E-Mail |
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