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We report on the synthesis and Raman scattering characterization of composite materials based on the hostnanoporous matrices filled with nanostructured KH<inf>2</inf>PO<inf>4</inf> (KDP) crystal. Silica (SiO<inf>2</inf>) and anodized aluminium oxide (AAO) were used as host matrices with various pore diameters, inter-pore spacing and morphology. The structure of the nanocomposites was investigated by X-ray diffraction and scanning electron microscopy. Raman scattering reveals the creation of one-dimensional nanostructured KDP inside the SiO<inf>2</inf> matrix. We clearly observed the stretching &#x03BD;<inf>1</inf>, &#x03BD;<inf>3</inf>, and bending &#x03BD;<inf>2</inf> vibrations of PO<inf>4</inf> tetrahedral groups in the Raman spectrum of SiO<inf>2</inf> + KDP. In Raman scattering spectra of AAO + KDP nanocomposite, the broad fluorescence background of AAO matrix dominates to a great extent, hindering thus the detecting of the KDP compound spectral response.

KH2PO4 + Host Matrix (Alumina / SiO2) Nanocomposite: Raman Scattering Insight