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Three-dimensional periodic lattice of ZrO_2 nanocrystals in transparent silica matrix

机译:透明二氧化硅基质中ZrO_2纳米晶体的三维周期性晶格

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摘要

The conditions for synthesizing an opal-zirconia-carbon nanocomposite in the form of monolithic (without pores) transparent silica with an ordered distribution of nanocrystals throughout the sample have been determined. Zirconia nanocrystals form a three-dimensional periodic lattice of nanoclusters with sizes ranging from several nanometers to several tens of nanometers. This nanocomposite exhibits properties typical of photonic crystals. The samples have been studied using electron microscopy, X-ray diffraction, photoluminescence, and Raman scattering. The structural state and spatial arrangement of zirconia nanocrystals and carbon clusters in the nanocomposite have been elucidated. Optical transmission and optical reflection photoluminescence spectra of the nanocomposites have been measured.
机译:已经确定了用于合成整体式(无孔)透明二氧化硅形式的蛋白石-氧化锆-碳纳米复合材料的条件,其中纳米晶在整个样品中有序分布。氧化锆纳米晶体形成纳米簇的三维周期性晶格,其尺寸范围从几纳米到几十纳米。该纳米复合材料展现出光子晶体的典型特性。使用电子显微镜,X射线衍射,光致发光和拉曼散射对样品进行了研究。已经阐明了氧化锆纳米晶体的结构状态和空间排列以及纳米复合物中的碳簇。已经测量了纳米复合材料的光透射和光反射光致发光光谱。

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