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Fully Solution-Processed Photonic Structures from Inorganic/Organic Molecular Hybrid Materials and Commodity Polymers

机译：无机/有机分子杂化材料和商品聚合物的完全固溶处理光子结构

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摘要

Managing the interference effects from thin (multi-)layers allows for the control of the optical transmittance/reflectance of widely used and technologically significant structures such as antireflection coatings (ARCs) and distributed Bragg reflectors (DBRs). These rely on the destructive/constructive interference between incident, reflected, and transmitted radiation. While known for over a century and having been extremely well investigated, the emergence of printable and large-area electronics brings a new emphasis: the development of materials capable of transferring well-established ideas to a solution-based production. Here, demonstrated is the solution-fabrication of ARCs and DBRs utilizing alternating layers of commodity plastics and recently developed organic/inorganic hybrid materials comprised of poly(vinyl alcohol) (PVAl), cross-linked with titanium oxide hydrates. Dip-coated ARCs exhibit an 88% reduction in reflectance across the visible compared to uncoated glass, and fully solution-coated DBRs provide a reflection of 99% across a 100 nm spectral band in the visible region. Detailed comparisons with transfermatrix methods (TMM) highlight their excellent optical quality including extremely low optical losses. Beneficially, when exposed to elevated temperatures, the hybrid material can display a notable, reproducible, and irreversible change in refractive index and film thickness while maintaining excellent optical performance allowing postdeposition tuning, e.g., for thermo-responsive applications, including security features and product-storage environment monitoring.
机译：通过管理来自薄（多层）层的干涉效应，可以控制广泛使用的，具有重大技术意义的结构（例如抗反射涂层（ARC）和分布式布拉格反射器（DBR））的光学透射率/反射率。这些依赖于入射，反射和透射辐射之间的破坏性/建设性干涉。尽管已经有一个多世纪的历史了，并且已经进行了充分的研究，但是可打印和大面积电子设备的出现带来了新的重点：开发能够将公认的思想转移到基于解决方案的产品中的材料。此处展示了利用商品塑料和最近开发的由聚（乙烯醇）（PVAl）与氧化钛水合物交联的有机/无机杂化材料交替制造的ARC和DBR的溶液加工方法。与未镀膜的玻璃相比，浸涂的ARC在可见光上的反射率降低了88％，并且完全溶液镀膜的DBR在可见光区域的100 nm光谱带上的反射率> 99％。与传输矩阵方法（TMM）的详细比较突出了其出色的光学质量，包括极低的光学损耗。有利地，当暴露于高温下时，混合材料可以显示出折射率，膜厚的显着，可再现和不可逆的变化，同时保持出色的光学性能，从而可以进行后沉积调整，例如用于热响应性应用，包括安全特性和产品-存储环境监控。

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  • 来源
    《Advanced Functional Materials》 |2019年第21期|1808152.1-1808152.7|共7页
  • 作者

    Bachevillier Stefan; Yuan Hua-Kang; Strang Andrew; Levitsky Artem; Frey Gitti L.; Hafner Andreas; Bradley Donal D. C.; Stavrinou Paul N.; Stingelin Natalie;

  • 作者单位

    Imperial Coll London, Dept Mat, London SW7 2AZ, England|Imperial Coll London, Ctr Plast Elect, London SW7 2AZ, England;

    Imperial Coll London, Dept Phys, London SW7 2AZ, England|Imperial Coll London, Blackett Lab, Ctr Plast Elect, London SW7 2AZ, England;

    Imperial Coll London, Dept Phys, London SW7 2AZ, England|Imperial Coll London, Blackett Lab, Ctr Plast Elect, London SW7 2AZ, England;

    Technion Israel Inst Technol, Dept Mat Sci & Engn, IL-32000 Haifa, Israel;

    Technion Israel Inst Technol, Dept Mat Sci & Engn, IL-32000 Haifa, Israel;

    BASF Schweiz AG, Klybeckstr 141, CH-4057 Basel, Switzerland;

    Univ Oxford, Div Math Phys & Life Sci, Dept Engn Sci, Oxford OX1 3PJ, England|Univ Oxford, Div Math Phys & Life Sci, Dept Phys, Oxford OX1 3PJ, England;

    Imperial Coll London, Dept Phys, London SW7 2AZ, England|Imperial Coll London, Blackett Lab, Ctr Plast Elect, London SW7 2AZ, England|Univ Oxford, Dept Engn Sci, Oxford OX1 3PJ, England;

    Imperial Coll London, Dept Mat, London SW7 2AZ, England|Imperial Coll London, Ctr Plast Elect, London SW7 2AZ, England|Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA|Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA;

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  • 正文语种 eng
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  • 关键词

    antireflection coatings; dielectric Bragg reflectors; inorganic; organic hybrid materials; solution-processed photonics;

    机译：防反射涂层;布拉格介电反射器;无机;有机杂化材料;固溶光子学;

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