| 학회 |
한국공업화학회 |
| 학술대회 |
2017년 가을 (11/08 ~ 11/10, 부산 벡스코(BEXCO)) |
| 권호 |
21권 2호 |
| 발표분야 |
나노_포스터 |
| 제목 |
Fabrication of Chiral Nanostructure by Directed Self-Assembly |
| 초록 |
In this study, we demonstrate that confinement of a cylindrical-morphology BCP in a shallow circular pit can produce either concentric rings or a spiral. A spiral is promoted by the presence of a notch-shaped feature within the template which controls the spiral chirality. The length of the spiral increases with the diameter of the template. Design of the notch geometry enabled double spirals to be formed. A notch of width ≈ L0 promotes spirals even for commensurate pit sizes indicating the critical importance of the inner shape of the template. For smaller notches, spirals formed for incommensurate template diameters and rings for commensurate template diameters. Analogous to using a notch to initiate a spiral in a circular pit, our approach could be extended to guide the chirality of 3D helical spirals formed in cylindrical confinements with a helical ramp template. |
| 저자 |
최홍균1, 장재범2, Caroline Ross3
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| 소속 |
1공주대, 2성균관대, 3MIT |
| 키워드 |
block copolymer; directed self-assembly; chiral nanostructure; Archimedean spiral; nanolithography
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| E-Mail |
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