| 학회 |
한국고분자학회 |
| 학술대회 |
2017년 가을 (10/11 ~ 10/13, 제주컨벤션센터) |
| 권호 |
42권 2호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Robust and Reconfigurable Microfluidic Encapsulation of Cholesteric Liquid Crystals toward Photonic Applications |
| 초록 |
Cholesteric liquid crystals (CLCs) possess photonic bandgap owing to the helical arrangement of molecules. The CLCs reflect circularly-polarized light of a specific handedness and wavelength, exhibiting colors. The wavelength of the selective reflection, or the structural color, can be easily controlled by varying the concentration of a chiral dopant. Although such a unique optical property renders CLCs promising for various applications, their fluidity severely limits the ease of processing and structural stability. One way to overcome the limitations is to encapsulate CLCs in micro-containers or to solidify of CLCs. Here I have introduced several methods for CLC microencapsulation and solidification based on microfluidic system and photopolymerization. And the optical properties of CLCs encapsulated or solidified in various polymer systems are investigated according to the temperature, concentration of chiral dopants and handedness of chiral dopants. |
| 저자 |
김윤호1, 서현진1, 이상석2, 가재원1, 김신현2
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| 소속 |
1한국화학(연), 2KAIST |
| 키워드 |
액정; 마이크로플루이딕; 캡슐; 광경화
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| E-Mail |
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