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首页> 外文会议>Liquid Crystals XI; Proceedings of SPIE-The International Society for Optical Engineering; vol.6654 >Photo-tuning of structural color of composite material consisting of inverse opal structure and azo-polymer liquid crystal
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Photo-tuning of structural color of composite material consisting of inverse opal structure and azo-polymer liquid crystal

机译：反蛋白石结构和偶氮聚合物液晶组成的复合材料结构色的光调谐

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摘要

A photochemically tunable structural color material was prepared by infiltration of the polymer liquid crystal (LC) having azo-chromophores in a SiO_2 inverse opal structure. The SiO_2 inverse opal film infiltrated with the polymer LC reflected a light, which is called a structural color, corresponding to the periodicity as well as the refractive indices of the inverse opal structure. Linearly polarized light irradiation caused the shift of the structural color band to longer wavelength more than 15 nm. This is caused by the formation of uniaxially anistorpic molecular orientation of the polymer LC. The switched state was stable under interior light, and reversible switching of the reflection band can be achieved by the linearly and circularly polarized light irradiation. This photoswitching property will be suitable for various optical materials such as memory, display so on.
机译：通过将具有偶氮发色团的聚合物液晶（LC）渗透到SiO_2反蛋白石结构中来制备光化学可调谐的结构彩色材料。聚合物LC渗透的SiO_2反蛋白石膜反射了一种光，这种光称为结构色，与反蛋白石结构的周期性和折射率相对应。线偏振光照射导致结构色带向大于15 nm的更长波长移动。这是由于形成了聚合物LC的单轴无规分子取向。开关状态在室内光下是稳定的，并且通过线性和圆偏振光照射可以实现反射带的可逆切换。这种光开关特性将适用于各种光学材料，例如存储器，显示器等。

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