| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 가을 (10/06 ~ 10/08, 제주 ICC) |
| 권호 |
39권 2호 |
| 발표분야 |
고분자가공/복합재료-자가치유 고분자와 복합소재 |
| 제목 |
Assembly of heterogeneous anisotropic colloids using electric field |
| 초록 |
Assembly of colloids has been interested not only for physical study but for various applications such as photonic band gap material, diffraction gratings or biosensors. Specifically, anisotropic colloids such as dumbbell or snowman like colloids have been interested recently due to its unique optical/electrical properties. The strength of induced dipole moment differs by each direction of particle so that this anisotropic dipole moment induces directional assembly of micro-particle under AC field. In this study, We applied AC electric field onto colloidal dispersion which has dumbbell shaped particle fabricated seeded emulsion growth method. and observed their assembly behavior under microscope with crossed polarizer. Long axis of dumbbell colloids have been aligned along the direction of E-field and closely packed each other. This behavior can be controlled by varying voltage and frequency of AC field. |
| 저자 |
이지선1, 정현주1, Stefano saccana2, David Pine2, 정희태1
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| 소속 |
1한국과학기술원, 2New York Univ. |
| 키워드 |
Anisotropic colloid; electric field
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| E-Mail |
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