| 학회 |
한국고분자학회 |
| 학술대회 |
2007년 가을 (10/11 ~ 10/12, 일산킨텍스) |
| 권호 |
32권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Long-range periodic toroidal holes in smectic liquid crystals: from direct visualization of internal structure of toroids to chemical encapsulation |
| 초록 |
Large area ordered structure by organic molecular soft building blocks is one of the most exciting interdisciplinary research areas in current materials science and nanotechnology. Here we report that perfect ordered-arrays of toric focal conic domains (TFCDs) covering large areas can form smectic liquid crystals (LCs). Combined with controlled geometry, our smectic LC system exhibits high density of TFCDs that are arranged with remarkably high regularity. Direct visualization of the internal structure of TFCDs clearly verified that the smectic layers were aligned normal to the side walls and parallel to the top surface, and merge with the circular profile on the bottom wall surface. Moreover, we demonstrate the new concept of smectic LC lithography technique. TFCDs of the smectic LCs acted as a template, trapping fluorescent particles in an ordered array. The present findings pose new theoretical challenges and open the way for lithographic applications based on smectic LCs. |
| 저자 |
Yun Ho Kim1, Dong Ki Yoon2, M. C. Choi3, Mahn Won Kim1, Oleg D. Lavrentovich4, Hee-Tae Jung5
|
| 소속 |
1Department of Chemical and Biomolecular Engineering, 2Korea Advanced Institute of Science and Technology / Liquid Crystal Institute and Chemical Physics Interdisciplinary Program, 3Kent State Univ., 4Korea Advanced Institute of Science and Technology, 5Materials Research Laboratory |
| 키워드 |
aaa |
| E-Mail |
|
