| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 가을 (10/09 ~ 10/11, 제주컨벤션센터) |
| 권호 |
44권 2호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Lattice-Matched Self-Directed Assembly of Diblock Copolymer Thin Films for a Large Area Quasi-Single-Crystal 2D Dot Array |
| 초록 |
The creation of dense periodic nanostructures using block copolymer (BCP) thin films is often struggled due to the formation of inherent defects and a short-ranged orientation, which act as obstacles to the successful application of BCP nanopatterning. While directed self-assembly (DSA) has substantially improved the structural order and controllability of pattern orientation, the quality of nanofabrication through the DSA is below the industrial expectations. Here, we suggest a facile method to create a quasi-single-crystalline 2D hexagonal array while conserving the pattern orientation along the controlled direction over a centimeter-scale area. The arrays are formed during the solvent vapor annealing (SVA) driven morphology transition from shear-aligned BCP cylinders to spheres where the SVA resolves the lattice-mismatching. The grazing small angle X-ray scattering and image analysis were performed to elucidate underlying mechanism and the superior performance of this strategy. |
| 저자 |
김예찬, 김소연
|
| 소속 |
울산과학기술원 |
| 키워드 |
block copolymer; quasi-single crystal; lattice-matching; morphology transition
|
| E-Mail |
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