金ナノロッドの表面電荷制御による秩序構造の発現  [in Japanese] Generation of ordered structure of gold nanorods induced by surface charge of them  [in Japanese]

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Abstract

棒状の金ナノ微粒子は金ナノロッド(GNRs)と呼ばれている。近年、GNRsの興味深い光学特性の応用研究が進められており、中でもGNRsの配向により光学特性を制御しようとする試みは非常に興味深い。GNRsに液晶の特性を付与することができれば、より簡便な配向制御が可能となる。本研究ではGNRsが異方的形状を有していることに着目した。排除体積効果に基づいてGNRs水溶液にリオトロピック液晶相を発現させることを目的とし、種々の検討を行った。

There are many nanorods having the shape anisotropy in the metal fine particles, particularly the rod-like gold fine nanoparticles are called gold nanorods (GNRs). Recently, optical properties of GNRs derived from the geometrical anisotropy in shape have been reported, the control of its optical properties by orientation of GNRs attracts a growing interest. On the other hand, liquid crystals exhibiting the anisotropy like crystals and the fluidity like liquids have the long range orientational order. The purpose of this study is to provide GNRs with liquid crystalline order based on an exclusion volume effect of the geometrical anisotropy in shape. We investigated the generation of liquid crystallinity of GNRs of which the surface electrostatic charge was controlled to give repulsion among them.

Journal

  • Proceedings of Japanese Liquid Crystal Society Annual meeting

    Proceedings of Japanese Liquid Crystal Society Annual meeting 2009(0), 179-179, 2009

    THE JAPANESE LIQUID CRYSTAL SOCIETY

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