Nagoya University · 재료과학
미츠오 하라 교수의 연구실은 주로 나노구조 하이브리드 물질, 특히 유기-무기 복합체를 기반으로 한 정렬된 미세구조를 설계하고 제어하는 데 초점을 맞추고 있습니다. 특히 π-π 상호작용과 표면 상호작용을 활용한 수직으로 정렬된 메조구조 형성, 그리고 염료 기반 크로모닉 액정의 고정화 및 광적용 정렬 기술 개발이 핵심 연구 방향입니다. 이는 광학 소자, 센서 및 나노소재 응용 분야에서의 응용 가능성을 높이고 있습니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
The development of vertically aligned mesochannels in organic/inorganic hybrid films is in high demand and a challenging issue. However, there are no clear guiding principles to attain the surface-mediated vertical alignment. This work proposes the first clear versatile strategy to achieve the vertical alignment by utilizing the π-π interaction between the organic template molecule of a planar discotic liquid crystalline and 2D π-plane of graphite. The crucial role of the π-π interaction can be
Some dye molecules self-aggregate to exhibit a lyotropic columnar liquid crystal state (chromonic liquid crystal) via pi stacking in relatively highly concentrated aqueous solutions. In this work, the chromonic liquid crystal structure was immobilized, for the first time, with silica networks by way of the sol-gel condensation process. The immobilization of the columnar structure was successfully attained in the presence of 2-(2-aminoethoxy)ethanol, which favorably mediates the interface between
We recently found that the chromonic mesophase structure of an azo dye can be immobilized by a silica network to form a chromonic–silica nanohybrid. This work reports the first demonstration of the macroscopic photoalignment and photopatterning of this nanohybrid via surface-mediated orientational transfer from a photocrosslinkable liquid crystalline polymer (PPLC). Irradiation with linearly polarized light (LPL) 300 nm above the PPLC film followed by an appropriate annealing process led to stro
