| 학회 |
한국고분자학회 |
| 학술대회 |
2010년 봄 (04/08 ~ 04/09, 대전컨벤션센터) |
| 권호 |
35권 1호 |
| 발표분야 |
대학원생 구두발표 |
| 제목 |
Thickness Dependence of Neutral Parameter Windows for Perpendicularly Oriented Block Copolymer Thin Films |
| 초록 |
We demonstrated how the BCP film thickness influences the orientation of BCP microdomains as well as the wetting behavior of BCP film placed on organosilicate substrates for which the surface energies could be finely tuned. Based on the simple but quantitative analysis, which takes into account the small increase in surface area at the top free surface of a parallel-oriented BCP film due to the formation of holes, islands, and bicontinuous structures, we demonstrated that such additional enthalpic contributions to the total free energy, which is, in turn, dependent on the film thickness, have a significant impact on the orientation and the wetting behavior of BCP microdomains. We also unequivocally showed that the thickness dependence of experimentally observed BCP film morphologies is in excellent agreement with the predictions based on the quantitative analysis taken in this study. |
| 저자 |
서효선1, 차국헌1, 강희만2, Paul F. Nealey2
|
| 소속 |
1서울대, 2Univ. of Wisconsin |
| 키워드 |
block copolymers; thin films; orientation; surface energy
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| E-Mail |
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