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Facile fabrication of centimeter-scale stripes with inverse-opal photonic crystals structure and analysis of formation mechanism

机译：厘米级条纹的逐蛋白光子光子结构和地层机理分析

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摘要

Due to their excellent photonic characteristics, colloidal crystals with periodic porous structures have attracted attention in fields such as bioseparation and photonic devices. In this work, we report a facile method to fabricate ultra-long colloidal crystal stripes with opal and inversed-opal structures. The colloidal crystal stripes were grown in a self-assembly process between polymeric microspheres (similar to 450 nm in diameter) and silica particles (14 nm + 5 nm), and formed during vertical evaporation of the solvent. The as-grown colloidal crystal stripes can be automatically curled and peeled from the glass substrate. The polymeric spheres were subsequently removed by sintering the composite under 500 degrees C, yielding porous stripes with inverse-opal structures. Polystyrene-block-poly-(methyl methacrylate)-block-poly-(acrylic acid) (P(St-MMA-AA)) composite microspheres were synthesized to be used as polymeric microspheres in this process. To successfully fabricate ICPC stripes, the continuous colloidal film must be pinned on the substrate surface, directional self-assembly of colloidal particles must occur, and there must be strong interaction among colloidal particles with sufficient magnitude of inner stress. Displaying characteristics such as centimeter-scale length, a periodic porous structure, and structural colors, these stripes have potential applications in bioanalysis, optical guides, and novel photonic devices.
机译：由于它们出色的光子特性，具有周期性多孔结构的胶体晶体引起了生物分离和光子器件等领域的关注。在这项工作中，我们报告了一种薄层制造具有蛋白石和反转蛋白石结构的超长胶体晶体条纹。在聚合物微球（直径450nm）和二氧化硅颗粒（14nm + 5nm）之间的自组装过程中生长胶体晶体条纹，并在溶剂的垂直蒸发期间形成。生长的胶体晶体条纹可以自动卷曲并从玻璃基板上剥离。随后通过在500℃下烧结复合材料而除去聚合物球，从而产生具有反蛋白石结构的多孔条纹。合成聚苯乙烯 - 嵌段 - 聚 - （甲基丙烯酸甲酯） - 嵌段 - 聚 - （丙烯酸）（P（ST-MMA-AA））复合微球以在该方法中用作聚合物微球。为了成功制造ICPC条纹，连续胶体膜必须固定在基板表面上，必须发生胶体颗粒的定向自组装，并且在胶体颗粒中必须具有强烈的内部应力大小的相互作用。显示诸如厘米级长度，周期性的多孔结构和结构颜色的特性，这些条纹具有在生物分析，光学导向器和新的光子器件中的潜在应用。

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  • 来源
    《RSC Advances》 |2016年第60期|共8页
  • 作者

    Ding Chen; Hu Jian-Chen; Yuan Wei; Du De-Zhuang; Yang Ya; Chen Guoqiang; Zhang Ke-Qin;

  • 作者单位

    Soochow Univ Natl Engn Lab Modern Silk Coll Text &

    Clothing Engn Suzhou 215123 Peoples R China;

    Soochow Univ Natl Engn Lab Modern Silk Coll Text &

    Clothing Engn Suzhou 215123 Peoples R China;

    Soochow Univ Natl Engn Lab Modern Silk Coll Text &

    Clothing Engn Suzhou 215123 Peoples R China;

    Soochow Univ Natl Engn Lab Modern Silk Coll Text &

    Clothing Engn Suzhou 215123 Peoples R China;

    Soochow Univ Natl Engn Lab Modern Silk Coll Text &

    Clothing Engn Suzhou 215123 Peoples R China;

    Soochow Univ Natl Engn Lab Modern Silk Coll Text &

    Clothing Engn Suzhou 215123 Peoples R China;

    Soochow Univ Natl Engn Lab Modern Silk Coll Text &

    Clothing Engn Suzhou 215123 Peoples R China;

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