KR102255555B1 - 디더링 마스크를 이용한 홀로그래픽 패턴 발현 유기젤의 제조방법 - Google Patents
디더링 마스크를 이용한 홀로그래픽 패턴 발현 유기젤의 제조방법 Download PDFInfo
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- KR102255555B1 KR102255555B1 KR1020190101827A KR20190101827A KR102255555B1 KR 102255555 B1 KR102255555 B1 KR 102255555B1 KR 1020190101827 A KR1020190101827 A KR 1020190101827A KR 20190101827 A KR20190101827 A KR 20190101827A KR 102255555 B1 KR102255555 B1 KR 102255555B1
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Abstract
Description
도 2는, 본 발명의 일 실시예로서 이용한 디더링 마스크의 패턴들을 나타내는 개략도이다.
도 3은, 본 발명의 일 실시예에 따라서 제 1 용매(ACN) 및 제2 용매(메탄올)를 반복적으로 변화하였을 때 디더링 마스크 로 제작된 유기젤들이 수축을 통하여 다양한 모양을 가지는 홀로그래픽 패턴을 발현하는 것을 나타낸 것이다.
도 4는, 본 발명의 일 실시예에 따라서 홀로그래픽 패턴을 발현하는 유기젤을 중심으로부터 각각 위, 아래, 왼쪽, 오른쪽, 대각선 방향으로 기울였을 때 전사되는 다양한 3차원 패턴을 나타낸 것이다.
도 5는, 본 발명의 일 실시예에 따라서 제 1 용매(ACN) 및 제2 용매(메탄올)를 반복적으로 변화하였을 때 가역적으로 변화하도록 구현되는 홀로그래픽 패턴을 나타낸 것이다.
도 6은, 본 발명의 일 실시예에 따르는 디더링 마스크에서 외부기하구조에 따라 각각 halftone pattern(rhombus, hexagonal 및 square)을 가지는 구조체들의 변형이 조절되며, 그에 따라 수축 시 발생하는 micro-moire pattern이 달라지는 것을 보여주는 사진이다.
도 7은, 디더링 마스크의 외부 기하 구조 및 내부 기하 구조에 따라 나타나는 다양한 홀로그래픽 패턴 특성을 나타낸 것이다.
도 8은, 비 양성자성 제1 용매(왼쪽)와 양성자성 제2 용매(오른쪽)의 노출 후 촬영한 마이크로 아키텍처 시스템의 밝은 영역 현미경(상단) 및 형광 현미경 이미지 (하단)이다.
도 9는, 본 발명의 일 실시예에 따라 자외선에 노출되는 시간 및 온도의 변화에 따라 변화되는 홀로그래픽 패턴 특성을 확인할 수 있는 현미경 사진으로서, 2,4-hexadiyn-1,6-diacrylate의 자외선 노출 시간에 따른 Bright field microscopy 이미지(도 7(A)) 및 자외선 노출 온도에 따른 Fluorescence microscopy 이미지(도 7(B) 및 도 7(C)) 이다.
도 10은, 본 발명의 일 실시예에 따라 제1 용매 및 제2 용매를 치환할 경우 유기젤에서 발생하는 미세 구조의 체적 변화와 형광 전이, 외부 용제 종류에 따른 형광 강도를 비교하는 그래프이다.
도 11은, 본 발명의 일 실시예에 따라 1,6-hexanediol diacrylate (HDDA)의 가교 결합 밀도에 따라서, 제1 용매와 제2 용매의 용매 치환 시 구혀노디는 공역 유기물 미세 구조의 형광 강도 비(메탄올 / 아세토 니트릴)를 나타낸 그래프이다.
도 12는, 본 발명의 일 실시예에 따라 컨쥬게이션 첨가제를 넣지 않았을 때와 넣었을 때 구현되는 형광 강도의 비를 나타낸 것이다.
도 13은, 본 발명의 일 실시예에 따라 컨쥬게이션 첨가제를 넣지 않았을 때와 넣었을 때 구현되는 형광 강도의 비를 촬영한 현미경 이미지이다(Bright field microscopy 이미지(위) 및 Fluorescence microscopy(아래)).
도 14는, 본 발명의 일 실시예에 따라 제1 용매 및 제2 용매의 수소 결합능 (α)에 따라 용매 치환시 PDA 유기젤의 미세 구조의 폭이 다른 다양한 동적 광학 및 형광 미세 패턴을 나타낸 현미경 이미지이다.
Solvent |
Hydrogen donor
( α ) |
Hydrogen acceptor
(β) |
Dipolarity
/polarizability (π * ) |
Water | 1.17 | 0.18 | 1.09 |
Methanol | 0.93 | 0.62 | 0.6 |
n-butanol | 0.79 | 0.88 | 0.47 |
PEG 200 | 0.46 | 0.65 | 0.915 |
Acetonitrile | 0.19 | 0.31 | 0.75 |
DMSO | 0 | 0.76 | 1 |
Claims (11)
- 주기적인 패턴을 가지고 배열된 화이트 픽셀 및 블랙 픽셀을 포함하는 디더링 마스크를 준비하는 단계;
자외선을 상기 디더링 마스크를 통과시켜 고분자를 광 경화시키는 단계;
상기 경화된 고분자에 제1 용매를 통과시키는 단계; 및
상기 제1 용매가 통과된 경화된 고분자에 제2 용매를 통과시키는 단계;를 포함하는 것이고,
상기 디더링 마스크는, 화이트 픽셀과 블랙 픽셀의 배열, 밀도 또는 이 둘이 상이한 영역들을 포함하고, 경화될 고분자에 조사되는 빛의 광량을 영역별로 미세하게 조절할 수 있는 포토 마스크(photomask)로서,
제1 영역 및 제2 영역으로 구분되고,
상기 제1 영역 및 제2 영역은, 각각, 픽셀의 형성 패턴이 상이하고,
상기 제1 영역 및 제2 영역 중 하나의 영역과 패턴이 동일한 제3 영역을 추가적으로 포함하거나,
상기 제1 영역 및 제2 영역 중 어느 하나와도 패턴이 일치하지 않는 제4 영역을 추가적으로 포함하는 것이고,
상기 자외선을 상기 디더링 마스크를 통과시켜 고분자를 광 경화시키는 단계는, DMD (digital micromirror device) 기반 노광장치를 이용하는 것인,
디더링 마스크를 이용한 홀로그래픽 패턴 발현 유기젤의 제조방법.
- 삭제
- 제1항에 있어서,
상기 고분자는, PDA(Polydiacetylene), PEG-DA(polyethylene glycol diacrylate), HDDA(1,6-hexanediol diacrylate) 및 PUA(polyurethane acrylate)로 이루어진 군에서 선택되는 하나 이상을 포함하는 것인,
디더링 마스크를 이용한 홀로그래픽 패턴 발현 유기젤의 제조방법.
- 제1항에 있어서,
상기 고분자는 컨쥬게이션 첨가제를 더 포함하는 것인,
디더링 마스크를 이용한 홀로그래픽 패턴 발현 유기젤의 제조방법.
- 제1항에 있어서,
상기 제1 용매는 상기 제2 용매보다 수소 결합능이 낮은 용매이고,
상기 제1 용매를 통과시키는 단계에서, 상기 경화된 고분자는 팽창하고,
상기 제2 용매를 통과시키는 단계에서, 상기 경화된 고분자는 수축하는 것인,
디더링 마스크를 이용한 홀로그래픽 패턴 발현 유기젤의 제조방법.
- 제1항에 있어서,
상기 제1 용매는, 아세토나이트릴(ACN), 디메틸포름아마이드(dimethylformamide), 디메틸설폭사이드(Dimethylsulfoxide) 및 아세톤으로 이루어진 군에서 선택된 하나 이상을 포함하고,
상기 제2 용매는, PEG, 메탄올(Methanol), 에탄올, 이소프로판올, n-부탄올 및 물로 이루어진 군에서 선택된 하나 이상을 포함하는 것인,
디더링 마스크를 이용한 홀로그래픽 패턴 발현 유기젤의 제조방법.
- 제1항에 있어서,
상기 유기젤은 주기적인 패턴을 가지고 형성되는 경화밀도가 높은 로드 영역 및 낮은 매트릭스 영역을 포함하고,
상기 유기젤은 용매 교환 시 발생하는 비대칭 수축을 통하여 상기 로드 영역 및 매트릭스 영역의 3차원 굴절률 분포가 달라져 져, 빛이 조사될 때 홀로그래픽 패턴을 발현하는 것인,
디더링 마스크를 이용한 홀로그래픽 패턴 발현 유기젤의 제조방법.
- 제1항에 있어서,
상기 제1 용매가 통과된 경화된 고분자에 제2 용매를 통과시키는 단계; 이후,
상기 제1 용매를 통과시키는 단계; 또는
상기 제1 용매를 통과시키는 단계를 수행하고 상기 제2 용매를 통과시키는 단계;
를 한 번 이상 다시 수행하는 것을 포함하는 것인,
디더링 마스크를 이용한 홀로그래픽 패턴 발현 유기젤의 제조방법.
- 제1항에 있어서,
상기 제1 용매를 통과시키는 단계가 수행되면 상기 유기젤의 홀로그래픽 패턴 발현은 차단(off)되고,
상기 제2 용매를 통과시키는 단계가 수행되면 상기 유기젤의 홀로그래픽 패턴 발현은 실행(on)되는 것인,
디더링 마스크를 이용한 홀로그래픽 패턴 발현 유기젤의 제조방법.
- 제1항에 있어서,
상기 디더링 마스크의 패턴은,
외부 기하 패턴 및 상기 외부 기하 패턴 내 형성된 내부 디더링 패턴을 포함하는 것인,
디더링 마스크를 이용한 홀로그래픽 패턴 발현 유기젤의 제조방법.
- 제1항, 제3항 내지 제10항 중 어느 한 항의 유기젤의 제조방법을 이용하여 제조된 것이고,
상기 유기젤은 주기적인 패턴을 가지고 형성되는 경화밀도가 높은 로드 영역 및 낮은 매트릭스 영역을 포함하고,
상기 유기젤은 용매 교환 시 발생하는 비대칭 수축을 통하여 상기 로드 영역 및 매트릭스 영역의 3차원 굴절률 분포가 달라져 상기 로드 영역 및 매트릭스 영역의 경계에서 산란 특성의 변화로 인해 홀로그래픽 패턴을 발현하는 것인,
디더링 마스크를 이용한 홀로그래픽 패턴 발현 유기젤 구조체.
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CN202211029534.8A CN115327877A (zh) | 2019-08-20 | 2020-07-28 | 利用递色罩的全息图案表达有机凝胶的制备方法 |
EP20854724.0A EP3872568A4 (en) | 2019-08-20 | 2020-07-28 | METHOD OF MAKING ORGANOGEL FOR EXPRESSION OF HOLOGRAPHIC PATTERNS USING DITHERING MASK |
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PCT/KR2020/009916 WO2021033937A1 (ko) | 2019-08-20 | 2020-07-28 | 디더링 마스크를 이용한 홀로그래픽 패턴 발현 유기젤의 제조방법 |
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