| 학회 |
한국고분자학회 |
| 학술대회 |
2004년 봄 (04/09 ~ 04/10, 고려대학교) |
| 권호 |
29권 1호, p.83 |
| 발표분야 |
복합재료 |
| 제목 |
Electrospray-Assisted Fabrication of Spherical Polystyrene Particle Assemblies |
| 초록 |
We have demonstrated a simple promising approach to produce spherical polystyrene (PS) particle assemblies in a cost-efficient and controllable way under an AC electric field. The size of the PS colloidal droplets was easily controlled by the strength and frequency of the AC electric field, which in turn adjusted the size of the prepared spherical colloidal assemblies with the particle loading of colloidal dispersion. Moreover, inverse opaline structures were produced by adding nano-sized silica particles into the PS colloidal dispersion and performing a well-developed templating process. Among the most important features of our spherical colloidal assemblies is that they display an angle independent specific color, which depends only on the size of the PS beads or their replica pores and the refractive index contrast. Therefore, our spherical colloidal assemblies are very promising as color pigments for reflection-based displays. In addition, the present method can be extended to mass-produce of non-isotropic colloidal building blocks to create new types of photonic crystals. |
| 저자 |
문준혁1, 홍승환1, 이승곤1, 이기라1, 양승만1, David J. Pine2, 박승민3
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| 소속 |
1한국과학기술원 생명화학공학과, 2Department of Chemical Engineering, 3UC Santa Barbara |
| 키워드 |
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| E-Mail |
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