| 학회 |
한국고분자학회 |
| 학술대회 |
2010년 가을 (10/07 ~ 10/08, 대구 EXCO) |
| 권호 |
35권 2호 |
| 발표분야 |
고분자 가공/복합재료 |
| 제목 |
Effects of Graphene on HPDLC |
| 초록 |
The morphology and electro-optical performance of holographic polymer dispersed liquid crystals (HPDLC) were investigated with the addition of graphene to the formulations of conventional polyurethane acrylate based HPDLC. The driving voltage and rising time of the films decreased with the addition and increasing amounts of graphene due to the increased effective local electric field across the liquid crystal (LC) droplet. HPDLC with graphene particles augmented the conductivity of polymer phase and hence the local electrical field imposed on LC droplet, which overcomes the threshold for driving and reduced operating voltage and response time. For electro-optical measurements, a square wave voltage operating from 0 to 80V was applied across the HPDLC cell. The morphology of the HPDLC gratings wase characterized by scanning electron microscopy (SEM). |
| 저자 |
장민우1, 김은영2, 김병규1
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| 소속 |
1부산대, 2부경대 |
| 키워드 |
HPDLC; morphology; graphene; driving voltage; SEM
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| E-Mail |
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