Publications by authors named "Masaki Ishizu"

Photoalignment control of hierarchical structures is a key process to enhance the properties of optical and mechanical materials. We developed an in situ molecular alignment method, where photopolymerization with the scanned slit light causes molecular flow, leading to two-dimensional precise alignment of molecules over large areas; however, the alignment control has been explored only on a molecular scale. In this study, we demonstrate this photopolymerization-induced molecular flow, enabling mesoscopic alignment of smectic layer structures composed of anisotropic molecules.

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Hierarchical control of two-dimensional (2D) molecular alignment patterns over large areas is essential for designing high-functional organic materials and devices. However, even by the most powerful current methods, dye molecules that discolor and destabilize the materials need to be doped in, complicating the process. We present a dye-free alignment patterning technique, based on a scanning wave photopolymerization (SWaP) concept, that achieves a spatial light-triggered mass flow to direct molecular order using scanning light to propagate the wavefront.

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Synopsis of recent research by authors named "Masaki Ishizu"

  • - Masaki Ishizu's recent research focuses on innovative techniques in photopolymerization to achieve precise molecular alignment in liquid-crystalline polymers, enhancing the optical and mechanical properties of materials.
  • - In his 2022 study, he introduced a method that utilizes scanned slit light to induce molecular flow, allowing for large-area mesoscopic alignment of smectic layer structures composed of anisotropic molecules.
  • - Additionally, his 2017 work developed a dye-free alignment patterning technique using scanning wave photopolymerization (SWaP), eliminating the complications associated with dye molecules while achieving effective control over 2D molecular alignment patterns.