그림 1. 나노구조를 갖는 몰드 제작 및 이를 이용한 solvent assisted micromolding 과정 Fig. 1. Preparing the mold with the nanostructures and solvent assisted micromolding process with it
그림 2. Solvent assisted micromolding 공정으로 다양한 온도에서 나노구조가 인쇄된 polyimide 박막의 원자힘 현미경 (AFM) 이미지 Fig. 2. Atomic force microscope (AFM) images of the polyimide films which were molded at various temperature via solvent assisted micromolding
그림 3. 인쇄공정 온도에 따른 polyimide 나노구조의 높이 변화 Fig. 3. The height of polyimide nanostructures depending on the micromolding temperature
그림 4. 나노구조 형성 시 용매효과와 모세관 효과의 상관관계 Fig. 4. Correlation between solvent effect capillary force effect when constructing nanostructures
그림 5. 나노구조를 갖는 polyimide 박막을 이용하여 제작된 액정셀의 편광현미경 이미지. (a) 나노구조 방향이 편광방향과 수직교차, (b) 나노구조 방향이 편광방향과 45도 각도 형성 Fig. 5. Polarized optical microscope images of liquid crystal cells which were constructed with the polyimide having the nanostructures. The direction of nanostructures is (a) perpendicular to polarization direction or is rotated by 45 degree.
그림 6. 액정셀의 회전 각도에 따른 투과도 변화. 액정셀은 입사광과 수직이였으며 동일 지점에 입사광이 입사된 상태에서 액정셀이 회전 Fig. 6. The transmittance depending on the rotation angle of a liquid crystal cell. The liquid crystal cell was perpendicular to the incident light and was rotated as the incident light was incident on the same point.
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