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<p>In the current work neodymium doped barium titanate (Nd<sub>x</sub>Ba<sub>1-X</sub>TiO<sub>3</sub>(x = 0.03, 0.05, 0.07)) perovskites were synthesized via solid state reaction route. The XRD peak profile established the phase purity of the prepared samples and identified their tetragonal crystal structure, corresponding to the P4mm space group. Rietveld refinement was employed to determine the lattice parameters and bond distances of all the samples. The 3D visualization was generated in VESTA using the CIF file obtained from the refinement process. Fourier Transform Infrared Spectroscopy provided analysis within wavenumber range of 500–4000&#xa0;cm<sup>−1</sup> which validated the presence of BaTiO<sub>3</sub>. The occurrence of blue shift is attributed to Nd (Neodymium) dopant. The ‘Field Emission Scanning Electron Microscopy’, combined with ‘Energy-Dispersive X-ray Spectroscopy’ offered the morphological and compositional characteristics. The dielectric constant (ε′) displayed frequency dispersion, attributed to Maxwell–Wagner space-charge polarization. The temperature variation of dc conductivity points towards the semiconducting nature of ceramics. Ac conductivity is found to be in the range of 10<sup>−3</sup> S/m. PL emission spectra was performed in the range of 350–650&#xa0;nm at an excitation wavelength of 360&#xa0;nm and 395&#xa0;nm. The material can be further purposed for energy storage and optoelectronics devices.</p> Graphical Abstract <p></p>

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Dielectric, electrical and photoluminescent properties of Nd3+-doped BaTiO3 ceramics: structure–property insights

  • 期刊论文

  • 发表日期：

    2026年3月25日

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  • Riya Malik,
  • Pooja Dahiya,
  • Shruti Devi,
  • Ashima Hooda,
  • Satish Khasa

摘要

In the current work neodymium doped barium titanate (NdxBa1-XTiO3(x = 0.03, 0.05, 0.07)) perovskites were synthesized via solid state reaction route. The XRD peak profile established the phase purity of the prepared samples and identified their tetragonal crystal structure, corresponding to the P4mm space group. Rietveld refinement was employed to determine the lattice parameters and bond distances of all the samples. The 3D visualization was generated in VESTA using the CIF file obtained from the refinement process. Fourier Transform Infrared Spectroscopy provided analysis within wavenumber range of 500–4000 cm−1 which validated the presence of BaTiO3. The occurrence of blue shift is attributed to Nd (Neodymium) dopant. The ‘Field Emission Scanning Electron Microscopy’, combined with ‘Energy-Dispersive X-ray Spectroscopy’ offered the morphological and compositional characteristics. The dielectric constant (ε′) displayed frequency dispersion, attributed to Maxwell–Wagner space-charge polarization. The temperature variation of dc conductivity points towards the semiconducting nature of ceramics. Ac conductivity is found to be in the range of 10−3 S/m. PL emission spectra was performed in the range of 350–650 nm at an excitation wavelength of 360 nm and 395 nm. The material can be further purposed for energy storage and optoelectronics devices.

Graphical Abstract