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Examination of well ordered nanonetwork materials by real- and reciprocal-space imaging

机译:通过实数空间和倒数空间成像检查有序的纳米网络材料

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The development of well ordered nanonetwork materials (in particular gyroid-structured materials) has been investigated using a block-copolymer template for templated electroless plating as an example system for the examination of network formation using X-ray scattering. By taking advantage of the nucleation and growth mechanism of templated electroless plating, gyroid-structured Au was successfully fabricated through the development of Au nanoparticles, then tripods and branched tripods, and finally an ordered network. Each stage in the development of the network phase could then be examined by combining real-space transmission electron microscopy observations with reciprocal-space small-angle X-ray scattering results. The fingerprint scattering profile of the building block for the network (i.e. the tripod of the gyroid) could be well fitted with the form factor of an effective sphere, and the diffraction results from the ordered network could thus be reasonably addressed. As a result, the examination of well ordered network materials can be simplified as the scattering from the form factor of a sphere convoluted with the nodes of its structure factor, providing a facile method of identifying the network phases from X-ray scattering data.
机译:已经使用用于模板化化学镀的嵌段共聚物模板作为示例系统来研究开发有序的纳米网络材料(特别是回旋结构的材料),该系统是使用X射线散射检查网络形成的示例系统。利用模板化学镀的成核和生长机理,通过金纳米颗粒,三脚架和支脚三脚架的发展,最终形成有序网络,成功地制造了回旋结构的金。然后,可以通过将实空间透射电子显微镜观察结果与对空间小角度X射线散射结果相结合,来检查网络阶段发展的每个阶段。网络构建块(即陀螺的三脚架)的指纹散射轮廓可以与有效球体的形状因子很好地匹配,因此可以合理地解决有序网络的衍射结果。结果,可以简化对有序网络材料的检查,因为它是球体的形状因子与其结构因子的节点卷积而来的散射,提供了一种从X射线散射数据识别网络相的简便方法。

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