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<p>The synthesized nanostructures based on nanoporous matrices of anodised aluminum oxide (AAO) and NH<sub>4</sub>H<sub>2</sub>PO<sub>4</sub> (ADP) and KB<sub>5</sub>O<sub>8</sub>∙4H<sub>2</sub>O (KB5) nanocrystals were studied. The deposition of nanocrystals into the pores of AAO was carried out from saturated aqueous solutions. The quantitative and qualitative composition of the AAO matrices was analyzed using X-ray fluorescence analysis. The surface morphology and pore dimensionality of the AAO matrices were examined using scanning electron microscopy. Spectrophotometric measurements have shown that the AAO nanomatrices have a transparency window in the wide spectral range of 250–2000&#xa0;nm. The dependence of the second harmonic generation (SHG) signal on the type of crystal filling of the pores was established. The parameters of the porous structure of both the initial empty matrices and those filled with nanostructures were estimated using the adsorption/desorption isotherms of nitrogen at its boiling point. It was shown that the ADP nanocrystals in the proposed synthesis method filled the AAO matrix better than the KB5 crystals.</p>

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Opto-structural properties of nanocrystalline structures within nanoporous Al2O3 matrices

  • 期刊论文

  • 发表日期：

    2025年10月31日

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  • V. Adamiv,
  • J. Jędryka,
  • I. Bordun,
  • V. Horchynsky,
  • I. Teslyuk,
  • R. Bukliv,
  • A. Andrushchak

摘要

The synthesized nanostructures based on nanoporous matrices of anodised aluminum oxide (AAO) and NH4H2PO4 (ADP) and KB5O8∙4H2O (KB5) nanocrystals were studied. The deposition of nanocrystals into the pores of AAO was carried out from saturated aqueous solutions. The quantitative and qualitative composition of the AAO matrices was analyzed using X-ray fluorescence analysis. The surface morphology and pore dimensionality of the AAO matrices were examined using scanning electron microscopy. Spectrophotometric measurements have shown that the AAO nanomatrices have a transparency window in the wide spectral range of 250–2000 nm. The dependence of the second harmonic generation (SHG) signal on the type of crystal filling of the pores was established. The parameters of the porous structure of both the initial empty matrices and those filled with nanostructures were estimated using the adsorption/desorption isotherms of nitrogen at its boiling point. It was shown that the ADP nanocrystals in the proposed synthesis method filled the AAO matrix better than the KB5 crystals.