| 학회 |
한국화학공학회 |
| 학술대회 |
2020년 가을 (10/14 ~ 10/16, e-컨퍼런스) |
| 권호 |
26권 1호, p.21 |
| 발표분야 |
고분자 |
| 제목 |
Orientation control of supramolecular columns by photo-thermal laser heating |
| 초록 |
Directed self-assembly of soft materials has been considered as a significant research for the generation of highly periodic nanostructures with small feature size. Among various soft materials, supramolecular structures are attractive due to their advantageous properties such as small feature size (2 - 10 nm), various chemical functionalities, and fast stabilization time (~ mins) to self-assembly. Herein, we demonstrate directed self-assembly of supramolecular columns by photo-thermal laser heating. Thermal gradient was generated from irradiation of focused laser beam onto chemically modified graphene layer. Induced thermal gradient directed the orientation of supramolecular columns with small feature size (~ 4.75 nm). By tuning the laser scanning velocity and the laser power, two different in-plane orientations and homeotropic orientation of supramolecular columns were observed. The directed self-assembly using laser photo-thermal annealing can be applied for orienting supramolecular structures with different phases and dimensions, then the creation of various shaped nanostructures with high-resolution and high periodicity will be expected. |
| 저자 |
박강호1, 진형민2, 권기옥3, 김장환1, 윤해주4, 한규효1, 양건국1, 김상욱1, 정희태1
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| 소속 |
1KAIST, 2한국원자력(연), 3한국생산기술(연), 4삼성디스플레이 |
| 키워드 |
고분자 |
| E-Mail |
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| 원문파일 |
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